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Big Sliding Doors

Welcome to the world of big sliding doors, where we bring all your biggest sliding door dreams to life and guarantee worry-free enjoyment of your warp-free big sliding doors for 50 years.

Thanks to the patented and patent-pending technologies provided by inventor, Peter Sing, for the first time, you can enjoy the biggest sliding doors of all without all the headaches and problems associated with large, oversized doors.

Sing’s door core allows the warp-free door factory located in Washington State to build the most Eco-friendly, lightweight and super-strong big sliding door which will not warp, and as you know, heavy doors that add wear and tear to the structure and hardware, as well as door warping are the biggest challenges associated with big sliding doors.

So, what kind of big sliding door do you have in mind?

Our most popular big doors are wooden sliding doors. They might not be the most popular sliding doors in the world, but here, at Sing Core, the wooden large sliding door is in the most demand. Why? Because natural wood is notorious for moving according to changes in the environment.

And in most cases, the bigger the sliding door, the bigger the problems you will have with that particular door over time. It’s just the nature of the business, and specifically natural wood, is by far the most beautiful but impractical. That is, until the invention of Sing Core.

Sing’s True Flat Team helps to engineer or re-engineer big sliding doors to adhere to high performance standards which are unheard of in the industry. Sing’s core is the highest precision (+/- .006 in. tolerance) and highest strength (660+ PSI) lightweight and Eco-friendly large sliding door core in the world. This in combination with Sing’s anti-warp stiffening technologies can help to create a big door that can be guaranteed not to warp, bend, twist, cup, or otherwise fail for 50 years, regardless of the material it is made of.

Of course, Sing’s proprietary anti-warp science is unique to his reinforced vertical grain torsion box hybrid core and unique integration of warp-reversing technology, and the results are not duplicatable outside his factories which are primarily located in Washington State, in the Pacific Northwest.

Most of Sing’s clientele admits,

“There’s just no other way to do it, without Sing Core.”

How else could you make a lightweight failure-proof huge moving wall system with enormous gliding doors or large operable wall systems with big sliding door panels made of wood that are fully insulated, stronger than steel pound for pound, and warp-free, even if one side is fully exposed to the weather? Impossible. That is, unless you have such a system engineered and built with Sing’s core inside.

According to Sing,

We Can Make Any Style of Door

Now, this is an interesting concept. One that is used in high security impact resistant doors with Sing Core inside. For instance, Sing’s True Flat Team, helps to design large modern sliding doors that look like they are built with traditional style and rail door technology. The truth is, the door base is solid composite patented Sing Core, where the door skins are applied in pieces to duplicate the look and feel of stile and rail design.

If you were to kick a stile and rail door at the seam, the door would cave in. Sing says, “If you kick my door, you break your leg,” not Sing’s door.
Plus, the added insulation offers both sound deadening and climate control capabilities to your big sliding door that you would be hard-pressed to find any other way.

So, whether you’re looking for expanding your scenic access to the outdoors with large sliding glass doors, big patio doors, which would be like a wall of large sliding French doors, or a huge double sliding patio door, maybe you should be considering jointly engineered large scenic sliding door systems designed and built in concert with Sing’s True Flat Team.

Well known for his “unbreakable mirror,” you might also want to consider, as many have, using Sing’s services for your next large mirror sliding door project.

Photos of Big Sliding Doors

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Large Sliding Bottom Rolling Doors

You will find Sing’s super large, oversized bottom rolling large sliding doors in use over a wide variety of industries such as aviation, commercial, agricultural, and industrial applications.

If you are looking for a lightweight oversized large sliding door that is stronger than steel pound for pound your solution to the size vs. weight ratio has finally arrived.

Due to inventor, Peter Sing’s patented and patent-pending large door technologies, door designers, and engineers of architectural doors have been empowered to take their conceptual contemporary ideas to the next level.

Now, even the largest of sliding doors can become manageable as complete solid units or as modular systems ready for assembly on site, with less need for heavy equipment with reduced threat of on the job injuries which is an ever-present risk when dealing with traditional large sliding bottom rolling doors, but not if your design has Sing Core inside.

These revolutionary lightweight and high-strength materials are having a huge impact on contemporary architecture and design especially in groundbreaking projects involving the largest rolling modern sliding doors in their respective industries.

Government and military applications now have a lightweight high-strength substructure made of Sing Core which can handle the added weight of any heavy weight additional material which may be soundproof and/or blast-proof, reducing the overall weight to one-third or less without compromising safety, security, or high performance.

And no other Eco-friendly, lightweight, dimensionally stable, and insulated building material is more high-precision (+/- .006 in.), stronger than steel (660+ PSI), or sustainable, which comes with a full 50-year warp-free and structure guarantee. 50 years!

When used as substrate material, the added insulation, which is also an integral component of Sing Core’s structural strength, helps add sound deadening characteristics while increasing climate control capabilities of any end product encapsulating it, saving lives and energy.

From beneath the sea (US Navy) to outer space (NASA) and throughout industries everywhere in between, Sing Core is changing the manufacturing methods when approaching the latest developments in the design and deployment of the largest sliding bottom rolling doors.

Whether inside the aerospace flying structures of the top aviation companies or the structures which house them while they are on the ground, lightweight high-strength Sing Core is making huge improvements in performance and reduced maintenance costs over time, when compared to traditional manufacturing methods inside and surrounding large aircraft designs.

While Peter Sing’s patented core material could be used in nearly any phase of construction, and has been used to build entire structures, from foundation to roof, everywhere in between, including most all interior furnishings, it’s premiere use with the highest degree of noticeable increased performance, is when it is featured inside any large rolling slider door system.

Steel buildings are made of it, without the need of a structure frame, which is having a noticeable impact for designers of modern metal building systems and the contemporary architects who are specifying Sing Core in their designs.

Large rolling doors with Sing Core inside can be used in any specific configuration, such as bi parting sliding doors, single-stack sliders, sliding doors floating, or fully suspended doors of large or enormous size.

Keep in mind that Sing’s large sliding bottom rolling door solution is not an out-of-the-box one-stop solution as Sing only provides the base door material which can be covered in nearly any flat building material in his factory located in the Pacific Northwest in Washington State.

Routinely, Sing’s base material is sent to metal fabricators, machine shops, millworks, or custom door manufacturers who supply the finishing details, prep for hardware, and arrange for installation of the behemoth sliding doors.

Not only are Sing’s base door manufactured in the United States but all the material inside these extraordinary one-of-a-kind door blanks are local sourced and each one is like an individually unique work of art fully made in the USA.

If you’re in the planning stages of your next project which may potentially feature large sliding bottom rolling doors, shouldn’t you check with your architect or door designer to see if you should have Sing Core inside your door?

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A Low Cost Alternative Way to Build Very Large Sliding Doors

Although not as tough as our original one piece door designs with a 50 year guarantee, our segmented doors still come with our patented Sing Core structure inside and carry a 5 year warp-free guarantee. And, they can be sold at a much reduced price.

In the past, very large and oversize specified doors were often made as a single piece and shipped whole to the contractor for installation. This is particularly true of very large pivot doors and sliding doors. With modern door construction techniques pioneered by Sing Core large doors can be produced and shipped to the customer in several pieces. These segmented doors pass on savings to the customer while maintaining the highest quality standards for warp free door construction.

Benefits of Modern Segmented Door Construction

Building a door in sections provides numerous benefits without compromise in strength, lightness, and flatness:

See Them Come Together

More Efficient to Build

Constructing a door in smaller sections makes the door easier to handle in the factory and easier to produce in general. Having more manageable sections leads to quick and efficient construction, at a cheaper cost. Doors constructed with our modern sectional approach pass on savings to the customer.

Cheaper to Ship

Doors cores produced in sections are built to be convenient and cheap to ship compared to a door built in one piece. This may reduce shipping costs payed by the customer to receive their door purchase.

Easier to Handle

Very large doors constructed in segments conform to common sizes. When you receive the door at your site handling it in segments is usually more natural for workers used to traditional sized doors than and 4×8 materials than handling an extra large door. Leaving joining the door until it reaches the site cuts costs and saves time all the way from our factory to your building site.

Strong and Stable

Sing Core doors shipped in sections and assembled on site maintain the highest standards for strength, lightness, and straightness. At Sing core we guarantee warp-free performance of segmented doors for 5 years.

How to Assemble a Sing Core Segmented Door

Assembly of a modern sliding door constructed using Sing Core technology without any specialized tools and equipment.

1. Lay Each Panel Flat

The first step to join a Sing Core sectional door is to lay the panels on a flat surface. Any flat clean surface will work. For very large doors we like to use two straight beams laid on the ground along  to hold the top and bottom of each door segment.

2. Slide a Spline in to One Side

Each spline and pocket are precisely cut to fit with strength. Our products are built with our 5 year warp-free guarantee in mind. Simply push or lightly hammer the spline in place on one side of the joint. Then your panels are ready to be fit together.

3. Joining the Panels

The final step in joining a modern sliding or pivot door is to press the sides together. This can be accomplished a variety of ways, including gentle application of a sledge hammer, a few ratchet straps, clamps, or any other means you have of providing joining force. Once joined, the door is strong and secure, built to last, and can be finished and installed as any other Sing Core door.

How to Build a Modern Door

 

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Wooden Sliding Doors

Wooden sliding doors are the most sought out sliding doors in the marketplace today. Increasingly, among contemporary architecture design the latest designs feature not only wooden sliding doors, but wooden sliding doors that are larger in size. Even though these large wooden sliding doors are highly sought after, the nature of the natural wood in wooden sliding doors does present some challenges.

 

Wooden Sliding Door Problems

Wood is Beautiful but Unstable

While we all appreciate the natural beauty of wood, the fact remains that this material comes from a living tree and naturally adorned with grain that is unique to each variety of tree giving it the elegant design feature of natural wood grain. The nature of the wood grain when we are so drawn to is also the most problematic feature when trying to create a sliding door which can remain straight enough to function properly. Natural wood grain, while it appears to be elegant in every way, moves as if the tree were still alive. In the sliding door industry sliding door manufacturers and those servicing sliding door accounts, there are specific words used to describe the conditions of wooden sliding doors when they fail, such as warp, bend, twist and cup.

Allowable Wooden Sliding Door Warp

Due to the nature of wood to warp, the AWI standard allowable warp for a door up to seven feet tall is a quarter of an inch of warp. ¼ inch warp in a 7 ft. door is considered a straight door. For wooden sliding doors over 7 ft. there is no limit to acceptable warp due to the nature of natural wood and its tendency to move subject to changes in the environmental conditions on either side of the door. The most problematic wooden sliding doors are exterior sliding doors because one side faces indoors, while the other side faces the elements. Interior doors have fewer problems with sliding door warp, but if they are over 7 ft. tall, will continue to present problems with sliding door warp.

Wooden Sliding Doors Are Heavy in Weight

The weight of natural wood is another issue to take into consideration when entertaining the idea of including a large wooden sliding door in your project’s design. Heavy wooden sliding doors will create added expenses very early on in the inclusion process, such as the added cost of shipping and handling. Moving the door from point A to point B will incur expenses based on the wooden sliding door’s weight. After the heavy sliding door arrives on the job site, installers must manhandle the door, and use heavy equipment to help maneuver the door on site. Additionally, a heavy wooden sliding door will require heavy duty sliding door hardware, which may cost many times more than the wooden sliding door itself.

Warp-free walnut wooden sliding door

Warp-free walnut wooden sliding door

Wooden Sliding Doors Have No Insulation

Large wood sliding doors vibrate, like a speaker, transferring sound from one side of the door to the other, which may not be a problem if your location is in the remote wilderness. Besides sound transfer, loss of energy is significant as wood is unable to maintain climate separation from one side of the door from the other, which is also many times more problematic for exterior sliding doors or doors separating two spaces that may have separate activities occurring on either side (such as office, meeting or recreational spaces).

Wooden Sliding Door Solutions

Warp Free Wooden Sliding Doors

The true flat team at Sing Core has a proven track record of providing warp-free sliding door solutions of any size (up to 50 ft.) based on its patented reinforced torsion box composite core and patent pending stiffener and straightening technology that enable them to make the only large sliding doors that can be guaranteed not to warp, bend twist or otherwise fail (including full structure warranty) for 50 years.

Wooden sliding doors with Sing Core inside are the most dimensionally stable Eco-friendly lightweight and high strength (660 PSI, stronger than steel pound for pound) sliding doors made in the United States of America.

Lightweight Wooden Sliding Doors

Thanks to the Sing wooden sliding door solution, wooden sliding doors can be made lightweight without compromising strength. Hollow core doors are lightweight but are relatively useless and insecure but better than leaving the doorway empty. A lightweight door does not have to be weak, thanks to patented Sing technology that enables door manufactures to create a lightweight door that is stronger than any other known door core material, and weighs a fraction of the weight of any other solid core wood-based material.

Insulated Wooden Sliding Doors

The patented Sing Core wooden sliding door solution creates a one-of-a-kind sliding door that is as unique as your thumbprint. Every Sing wooden sliding door is an individual work of art, specially designed and built to meet or exceed architectural specifications, regardless of size or applications. One of the unique attributes of the patented Sing torsion box core is that it is pre-insulated. The empty spaced of the torsion box voids are insulated which imbues the wooden sliding door with characteristics of an insulated sliding door that offers climate control R-vale and well as sound dampening.

Sing Wooden Sliding Door Styles

Your patented Sing wooden sliding door solution can be applied to any type or style of wooden sliding doors, including but not limited to the following sdoors made of any kind of natural wood or any available wood-based skin material:

Sliding Front Door Sliding French Doors Sliding Security Doors
Sliding Wardrobe Doors Sliding Barn Doors Sliding Double Doors
Sliding Patio Doors Internal Sliding Doors Automatic Sliding Doors
Sliding Room Dividers Sliding Barn Style Doors Sliding Interior Doors
Sliding Wall Systems Exterior Sliding Doors Sliding Doors Room Dividers
Barn Door Sliders Hangar Doors Sliding Pocket Doors
Sliding Folding Doors Hanging Sliding Doors Modern Sliding Doors
Sliding Patio Doors Kitchen Sliding Door Large Sliding Doors
Custom Sliding Doors Sliding Panel Doors Commercial Sliding Doors
Sliding Partition Doors Steel Sliding Doors Triple Sliding Door
Multi Slide Doors Concealed Sliding Doors Sliding Front Door
Sliding Back Doors Sliding Restaurant Doors Sliding Industrial Doors

Types of Warp-free Wooden Sliding Doors

These revolutionary warp-free wooden sliding doors can be made of different types of wood to make the strongest wooden sliding doors that can be guaranteed not to warp, bend, twist and remain structurally sound for 50 years. You can have the following warp-free wooden sliding doors with Sing Core inside:

Ash Wood Sliding Doors Beech Wood Sliding Doors Birch Wood Sliding Doors
Cedar Wood Sliding Doors Cherry Wood Sliding Doors Fir Wood Sliding Doors
Fruitwood Wood Sliding Doors Hard Rock Maple Sliding Doors Hemlock Wood Sliding Doors
Hickory Wood Sliding Doors Knotty Pine Wood Sliding Doors Mahogany Wood Sliding Doors
Maple Wood Sliding Doors Oak Wood Sliding Doors Pine Wood Sliding Doors
Port Orford Cedar Sliding Doors Red Cedar Wood Sliding Doors Red Oak Wood Sliding Doors
Rosewood Wood Sliding Doors Spruce Wood Sliding Doors Sugar Maple Wood Sliding Doors
Teak Wood Sliding Doors Walnut Wood Sliding Doors White Oak Wood Sliding Doors

… Just to name a few, as warp-free Sing wooden sliding doors can feature any wood surface, including rare, exotic wood(s) when available.

Patented Sing Core solid wood stave sliding door blanks feature the newest technology in the door industry for composite sliding doors yielding the only eco-friendly, lightweight, fully insulated, high-strength sliding doors with wood blanks of any size (up to 40 ft.) that can be guaranteed true flat and to stay flat for 50 years.

Large sliding door versus regular-size sliding door challenge (i.e., over 4 feet wide and over 8 feet in length):

Large sliding doors are heavy, dimensionally unstable, require more strength due to the heavy weight, and are a challenge to manufacture, ship and install.  High-end jobs require precision and true flatness to please the customer.  A homeowner’s architect, general contractor and mill worker must solve the problem of warped sliding doors.  The solution to the challenge is to use patented professional Sing door blanks to make your sliding doors.

Sing Core wood stave door blanks help door manufacturers to create the only solid wood sliding doors that will not warp, bend, twist or cup following installation.  This means no more continuous service calls for maintenance of big sliding doors that cannot possibly stay straight due to the limitations of solid wood – or any other sliding door core – that is subject to failure.  Sing sliding door blanks have a patented honeycomb/torsion box interior which gives lightweight yet unsurpassed strength (pound-per-pound stronger than steel) and stability to any door, and allows Sing Core to provide a 50-year guarantee

Interior Wooden Sliding Doors:

Sing sliding door blanks make amazing designer doors in any style.  With Sing sliding door core, fragile sliding doors such as French doors are made lightweight yet strong, not warping or breaking hinges, which will last for many decades.

Exterior Wooden Sliding Doors:

Sing sliding door blanks make sturdy exterior doors in any style.  With Sing sliding door core, exterior sliding doors are lightweight and strong, even when oversized.  Our professional wooden sliding doors are guaranteed to stay true flat and not warp or twist for 50 years

When is a door not a door? When it fails to function as a door.

The problem is that all sliding door core materials are either not high precision, too heavy or will move when exposed to moisture, humidity or change in temperature resulting in sliding door failure.

Heavy solid metal or steel will not warp, bend or twist, but is not high precision due to welding (sing core tolerance is + or –  .006 inch!) and is often impractical due to the overweight issues causing excess strain on both the hardware and structure, causing continued maintenance issues.  The solution is our patented lightweight yet strong Sing core wooden sliding door technology.

Finishing a wooden sliding door blank:

There are two types of finish for door blanks:  paint grade and wood grain.  Paint grade includes such finishes as domestic and marine plywood, etc.  Wood grain finish includes such finish as solid wood stave and/or thin veneer.

Why Use Solid Wood Instead of Veneer?

Never settle for substandard veneer sliding doors again. Door engineers prefer to use inexpensive veneer as opposed to real solid wood facings because veneer is thought to be less likely to warp, bend or twist.  But thanks to the super-strength of patented Sing Core technology, you can use solid wood stave and wood blanks with confidence knowing that your wooden sliding door can be guaranteed true flat and will stay flat.

How can a solid wood-faced sliding door stay true flat? As every woodworker knows, when using a solid wood surface, the grain will move according to moisture or temperature change causing the door to fail. When using our patented Sing Core as a substrate you can safely use solid wood because the patented solid torsion box composite material is continually keeping the wood grain straight and true.  Whereas wood stave has more wood fiber giving it more of a chance to warp than thin veneer due to the unbalance of the both side of the door moisture contents, patented Sing technology solves this problem by combining patent pending stiffening materials throughout our Sing core.  This warp-free Sing wooden sliding door technology eliminates the troublesome movement of the sliding door blank — warping is no longer a concern when wood stave is combined with reinforced patented Sing core.

In addition, solid wood is easy to work with, install (no need to hot press), repair and remodel.  That’s why professionals trust Sing Core’s years of expertise in helping to design the only wood stave sliding doors (that look just like solid wood sliding doors) that can stay straight and true for many decades while respectfully honoring the beauty and elegance of solid wood, which far outlasts easily-damaged veneers, yet can be sanded and repaired if necessary.

Celebrate your real wood!

Our Eco-friendly lightweight, high strength alternative is the best   solution for combating the issues associated with weight and size,   especially large doors.  Only our patented Sing torsion box/foam   composite core combined with our years of experience provides   guaranteed solutions for oversize sliding doors.

That’s why this technology is found everywhere, from beneath the sea   (US Navy) to outer space (NASA) and everywhere in-between.

Sing sliding door blanks may be made using almost any wood species, like   mahogany, redwood, teak wood, cherry wood, walnut wood, cedar   wood, Ipe wood, sapele wood, poplar wood, ebony wood, ash wood,   oak or any other hardwood or exotic wood types available.

This same wood sliding door blank composite technology is also a common solution for high-end projects like engineered hardwood flooring, shiplap, wood furniture, wood shelves, decking, shed doors or any other application demanding high precision and exemplary performance over time.

Domestic Wood Grain Plywood Sliding Doors

As an alternative to wood stave, domestic wood grain plywood could be used to create a nice wood grain surface, even for large sized wooden sliding door applications.

Note the seam is tight but visible when joining two pieces of domestic plywood together to create a large panel.

How is wood stave/veneer added to Sing panels?

Wood stave is added directly to the metal or wood skin of our patented Sing cores.  Wood veneer may be added to an 1/8-inch mdf attached to the metal skin.  Call us for a free consultation on the best option for your project.


How to vacuum-press (video) with Sing Core
 

Wooden Sliding Doors

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Large Sliding Doors

If you’re looking for the best in large sliding door design, you’ve come to the right place. Sing Core specializes in creating the ultimate sliding door experience. That’s why you see Sing large sliding doors everywhere on planet earth and beyond, from beneath the sea (US Navy) to outer space (NASA) and everywhere in between.

The only 50 year warp-free guarantee and full structure warranty

large-sliding-door

Sliding Doors

The deal with sliding doors is that you want your sliding doors to remain straight and true throughout their service life. Architects, designers and end users face the issues associated with the problems associated with sliding doors, such as,

Problems with Sliding Doors

The first problem with sliding doors is that they tend to move (warp, bend, twist or cup) compromising the doors’ performance. Especially in the case of sliding doors because they hang parallel to a wall (like sliding barn doors), another door (such as double sliding doors) or within a wall (like sliding pocket doors). If the door does not stay straight, it can wreck either the sliding doors or the surfaces they slide against, or both.

Heavy Sliding Doors

One way to deal with the problem of warping sliding doors is to build them using extremely heavy and warp resistant materials, such as steel, which introduces whole new set of problems, which will increase maintenance costs over the life of the door. Even though the heavy sliding door may not warp, it will require expensive heavy duty hardware (which can cost many times the price of the door itself) which can easily be compromised due to regular use, as well as the added stress of using a heavy door, will add stress and strain to the frame and structure, also requiring additional maintenance over time. Some architects and designers might consider using a lighter weight metal, such as,

Aluminum Sliding Doors

Of course, aluminum sliding doors make more sense; though contemplating the use of solid aluminum sliding doors will still introduce the problem of heavy weight. One way to manage the weight of the door is to use a honeycomb material, such as aluminum honeycomb, paper honeycomb or some other type of honeycomb material inside the otherwise hollow core sliding door. The only problem with that is that as you introduce a lightweight substrate, the door begins to warp again, especially if they are exterior sliding doors.

 

Wooden Sliding Doors

Ah, the elegance and beauty of natural wood. We love it and exotic wood grains can instantly garner the awe and attention of anyone spying a large sliding door made of wood. This is why many large sliding doors are wooden sliding doors. As magnificent and appealing as they are, wood is the worst culprit of all, because it can barely sit still for as long as you can. Due to wood’s natural characteristics, it is most prone to warp, bending, twisting and cupping, because even separated from the tree, it still fights for survival and the grain will either expand or contract due to the elements it is presented with. Exterior doors are the most problematic because one side faces the interior space, while the other side faces the elements outside, a perfect recipe for door warp.

Large Sliding Doors

The bane of perplexed custom sliding door manufacturers is the additional challenges with doors which are taller than 7 ft. tall and wider than 3.5 ft. Very few, if any, custom door manufacturers or millworks will even consider guaranteeing a door over seven feet tall. Why? Because they know it is going to fail, and they will be called upon to deal with it. In most cases, the job as a whole will have a warranty on the work done, with the exception of the large sliding doors which are normally noted as exceptions to any warranty that might cover the rest of the job. That is, unless you know the answer to the problems associate with large sliding doors.

Sliding Door Design Problems Solved

Architects and engineers are constantly perplexed with the problems associated with sliding doors, fortunately an Eco-friendly composite solution made in the USA, helps to solve the problems associated with faulty sliding door design. Patented Sing Core, along with their true flat door team, can help to create sliding doors that will remain straight and true far beyond the service life of any other sliding doors. By working with Sing Core’s design staff a combination of Sing Core and patent-pending sliding door stiffening solutions can create perfect sliding doors that are lightweight, high strength and can be guaranteed not to warp, bend, twist, cup or otherwise fail for 50 years.

The Perfect Large Sliding Doors

The best custom door manufacturers and millworks who offer long warranties on their large doors have a secret inside each one of their high end professional sliding doors: Sing Core inside. A properly designed and built large sliding door with patented professional Sing Core inside can be guaranteed not to warp, bend, twist or otherwise fail for 50 years. How do you know if you have the best large sliding doors in the world?

Image on the left is a modular large 8×10 door shipped in a pair of 4×10 components cam locked together on site for near seamless paint-ready perfection. Image on right is close-up of near-seamless connection.

It’s easy; just see if your sliding doors have the following Sing Core sliding door characteristics:

Eco-friendly
Lightweight
High-strength
High Precision
Fully Insulated
Warp-free
Sustainable Long Life
Made in the USA

When your sliding door company claims they are providing you with the best sliding doors possible, you can rest assured your large sliding doors will pass the perfect sliding door test by being manufactured using Eco-friendly Sing Core which uses less energy, renewable, sustainable and non-toxic ingredients to create its vertical grain torsion box composite core. Sing Core sliding door core is lightweight, weighing approximately 10% the weight of solid wood-based door cores. The high strength of Sing Core outperforms any other sliding door core material, independently tested to rate at least 660 PSI, which makes it stronger than steel pound for pound.

Other sliding door core materials do not create a high precision base due to product production inconsistencies or welding, while Sing Core is the most high precision at +/- .006 inch. Only perfect sliding doors manufactured with Sing Core inside can remain warp-free. Sing Core is fully insulated imbuing the best sliding doors with climate control (R rating) and sound deadening qualities (STC rating*) for greater safety and security. Professional Sing Core sliding doors can be guaranteed not to warp, bend, twist, cup or otherwise fail (including full structural warranty) for 50 years, assuring your large sliding doors sustainable long life, while being proudly made in the USA.

Yes, you read that right. The perfect large sliding doors are the only ones that have a

50 Year Guarantee

Now you know you have the perfect large sliding doors, if they have Sing Core inside.

Other Types of Sliding Doors

You can enjoy all the available types and styles of large sliding doors that can accommodate and size without compromising strength or weight, such as sliding French doors, patio sliding doors, mirror sliding doors, folding sliding doors, sliding pocket doors, double sliding doors and sliding folding doors, just to name a few.


Now that you know how to determine what are the best large sliding doors are supposed to be, you can get the perfect large sliding doors wherever you find custom sliding doors for sale and tell them you want all your doors to have, “Sing Core inside.”

Sing Core and More

Patented Sing Core enables architects and designers to let their creative genius run wild by incorporating Sing Core in all their projects, not just for large sliding doors as Sing Core is also available in panels, posts and beams to enhance the capabilities of any large scale project which may encounter problems associated with strength and weight.


 

* Note: STC rating varies according to size, thickness, skin, and other factors. Sing Core does not rate doors, although we are fortunate enough to have one of the best sound testing labs in the world, here in the Pacific Northwest. If you require a specific STC rating, Sing Core can build a door to your architectural specifications and have the resulting door tested at our rating facility for an official rating.

 

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Millworks Crestmark and SingCore

Celebrating 19 years of serving customers with high end custom products, Crestmark Architectural Millworks is a dynamic and fast-paced company serving the millwork needs of commercial builders and general contractors in the San Francisco Bay Area and beyond.

crestmark-architectural-millworks-team-arcata-california

The Crestmark Architectural Millworks Team

One of Crestmark’s special abilities is to work hand-in-hand with the contractor to achieve the architect’s vision in a creative process involving the delicate balance of high precision and performance, visual and mechanical aesthetics, logistics and budget considerations.

According to President Sean Olsen, “We have a reputation of being very creative, using products like SingCore to achieve what the architect wants, while making it a practical thing to do.”

A case in point: Crestmark was approached by Webcor Builders to provide solutions for the San Francisco Museum of Modern Art (SFMOMA), who required a sensitive artwork storage area with very low volatile organic compounds (VOC) and unique design characteristics, such as 10 foot tall cabinet doors with hidden hardware and 1/8 inch reveals between doors. Crestmark Senior Manager, Jim Farahmand, says “Regarding size, weight, and stability concerns, it was obvious conventional composite cores were going to be prohibitive.”

Originally, the Crestmark team had discovered SingCore as a resource for “building 16 foot torsion box shop table tops that needed to be dead-flat.” Says Olsen, “We looked at SingCore and thought it was light and had the look the Museum required as well as stability sufficient for the application.”

“SingCore’s engineers and fabricators were flexible and able to provide a fully sealed core, custom blocking, aluminum cladding, and facing materials with paintable surfaces to satisfy the architect’s stringent requirements.”

Production Manager, Patrick Silva, recalls how easy the SingCore material was to work with, “I was surprised at how light the material was. Normally a four foot by ten foot door core weighs a couple hundred pounds, but instead it was light enough almost to handle the entire piece myself,” Silva continues, “I’ve had issues with warped panels before, and to have this material which is so nice, flat, stable and easy to work with is great.” Silva also applauds the support staff at SingCore in terms of pre-engineering the panels to, “have slightly larger perimeter blocking and aluminum cladding so that we could trim them down and band the edges in our shop.”

Once the cabinetry was installed, Crestmark’s installation crew were able to maneuver and align the doors to the cases, and report that “the weight factor of the 10 foot tall [SingCore] doors was a huge advantage,” recalling that the installation of the cabinetry into the wall was the most challenging part of the job, not attaching the large doors as one might expect.

Project Manager, Jim Farahmand reports, “I don’t think we’ve ever seen such stringent specifications on anything quite like the SFMOMA due to the mediums they wanted to protect, and SingCore came through in fine style.” and added, “The product was instantly acceptable to the architect, so we were able to move forward very quickly and get it done.”

Having successfully completed prominent projects like the SFMOMA expansion has brought in other quote requests from new potential clients seeking out Crestmark’s particular brand of problem-solving and creative millwork solutions.

Initial invitations to bid can range from very complete, with detailed architectural specifications, to rudimentary drawings and concepts. It’s important for Sean Olsen and Jim Farahmand to decide which projects are a good match for Crestmark’s services because even though they do not charge their clientele for estimates, they may invest an entire week to estimate one millwork package. Exercising discernment, the Crestmark team reviews each new proposal, deciding which project to invest in.

Airbnb, Inc. was one such new client who approached Crestmark with plans calling for “two large sliding doors 20 to 25 feet long by 9 to 10 feet tall that could be operated on either side of a concrete wall.

“SingCore offered us the flexibility to provide a lightweight, multi-panel solution that could be assembled on site with internal blocking where we needed it to accommodate the hardware.”

Patrick Silva interjects “These two huge sliding doors were clad with White Oak, wire-brush finished, and could have weighed thousands of pounds… but instead, we made them weigh a couple hundred pounds apiece.”

crestmark-architectural-millworks-president-sean-olsen

President Sean Olsen

Crestmark President, Sean Olsen says, “For two people to be able to handle these huge doors from the shop, to stage it, disassemble it, transport it to the job site and not have to worry about access, saves both time and energy, which is a great advantage.

Silva asserts, “The fact that anybody can open these doors single handedly is clearly not simply a function of the hardware, but rather because the door is so light. It’s an impressive application.”

Senior Manager, Jim Farahmand reinforces, “To take the pieces we’re provided, not to have to move mountains to make it happen and to end up with this monolithic feature that people are in awe of is a clear indication of how versatile SingCore can be.

“Our confidence in our vendors like SingCore enables us to arrive at solutions quickly because we know the material will perform well within the limits of its component hardware; the engineering goes a lot more smoothly and we know SingCore also stands behind their product.”

“As far as warranty goes, if the customer requires a ten year warranty on the doors we’re providing, we know we’re covered by SingCore’s fifty year warranty, and so our response can be ‘OK. No problem,’ which is great for us and instantly reassuring to the client.”

Crestmark Architectural Millwork is optimistic about the current trend of growth in the industry. According to President, Sean Olson, “The market is turning around and we’re seeing continued growth in negotiated work again.” Unlike the last eight years that were focused on hard-bidding which was a difficult time industry-wide.

Jim Farahmand says, “SingCore’s team of engineers can assist us if a secured client is facing budget issues, often helping us to value-engineer the products while still helping the architect achieve the vision they’re looking for.”

crestmark-architectural-millworks-arcata-california-707-822-4034

Crestmark Architectural Millworks
5640 West End Road
Arcata, CA 95521
Phone: (707) 822-4034
Email: info@crestmarkam.com

singcore-logo

SingCore
P.O. Box 1691
McCleary, Wa 98557
Phone: (360) 495-3577
Email: info@singcore.com

See also: AWI Millworks

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OEM Door Original Equipment Manufacturer

Copper door Sing Core inside

Sing Core inside

Sing Core is in the unique position to partner with the designers, architects, custom millworks, builders and installers of the best doors in the world. What do the best high precision, lightweight, high strength, guaranteed warp-free doors in the world have in common? The best ones have Sing Core™ inside. See: Clients list

In this respect, Sing Core is an important OEM supplier likened to Briggs & Stratton, BBS Wheels, Johnson Controls, Lear, Delphi, TRW, Intel and AMD. These companies, like Sing Core, do not manufacture the end product but supply the product manufacturers with the quality components that enable their clients to deliver superior results to their customers without having to create separate production facilities for building specialized parts.

Even though Sing Core does not build doors, our OEM door blanks help the best door manufacturers create the best doors that are built to last for centuries and can be guaranteed not to warp, bend twist or otherwise fail for a full 50 years for their intended (designed and built) use.

Why Sing Core is the perfect solution for problem doors lightweight high strength non warp doorSee also: How to Build a Sing Door

How Does the Sing OEM Process Work?

Establishing the Need of Sing Core

There are many reasons that door manufacturers seek out patented Sing Core as their OEM door substrate; some of the most popular ones are:

Sing doorway to a better door 50 year non warp guaranteeCreating a Superior Door Line

Some door manufacturers are looking for ways to distinguish themselves from other door manufacturers. They seek out an OEM relationship with Sing Core to design and build an ultra premium line of doors that have unique characteristics that cannot be found by using any other door substrate material.

BIG Door

Many door manufacturers have problems with large doors (especially over 7 ft. tall) in that while they look magnificent upon installation, dealing with door warp on a regular basis is a constant maintenance cost associated with big doors.

Oversized large paint grade Sing pivot door panelThis is where Sing Core door substrates shine because the substructure of the core itself is a combination of wood torsion box (using vertical grain matrix framing) filled with recycled rigid foam creates a lightweight, high strength solid substrate that will retain its original shape and structural integrity over time; higher precision and lasts longer than any other known door building material.

That’s why more and more, you are finding Sing Core™ inside some of the biggest aircraft hangar doors, large sliding barn doors, factory doors, large commercial doors, warehouse doors and large garage doors.

Non-warp Door

Sing Core™ is the only door core material that enables our door manufacturers to deliver doors that do not warp regardless of size or external materials in either interior and/or exterior doors, if they are designed by our Non-warp True Flat Specialists. Sing Non-warping door blanks are available in any type, style, shape, exterior skin and/or composite configuration.

Insulated Door

Rumney Guggenheim Gallery Williamsburgh Savings BankInsulated doors offer enhanced separation between two areas separated by an opening, doorway or egress point. Sing Core insulation starts at R3.5 per inch and goes up from there, based on architectural specifications. Insulated door are of primary interest to architects, designers and engineers seeking soundproof door, hurricane doors* or other weatherproof door where an insulated door is specified.

Security Doors

Sing Core is of primary importance in security doors of substantial size. Large security doors are difficult to manage normally due to weight; this problem can be solved with the Sing solution. A security door can be used in a variety of circumstances and applications including impact doors, and bulletproof doors.

Television-studio-moveable-sound-walls-sound-proofUsing Sing Core™ inside, impact resistant doors don’t have to be heavy weight, which causes unnecessary stress and strain on both the hardware and structure, while delivering all the security desired including increased privacy due to innate door insulation.

Specialty Doors

Sometimes a custom door manufacturer, millwork or door manufacturer faces a job that requires doors with unique attributes to accommodate a particular usage following installation.

Specialty doors may need particular characteristics to meet the requirements of the end user. Architects, designers and engineers can use Eco-friendly Sing Core™ inside to have greater control over:

Weight
Strength
Insulation
Structure		 Non-warping
Sound deadening
Impact resistance
Waterproof		 Any size
Any style
Any performance
Any exterior surface

 

Get the door that you want, when you want, how you want it to perform

Patented Sing Core is the most high precision door core material producing the highest performance doors in any type of door that are elegant and possess superior functionality.

 

sliding doors
pivot door
revolving doors
automatic doors
portable partitions
operable walls
hinged doors
balanced doors		 garage doors
barn door
security doors
industrial doors
hangar doors
acoustic doors
warehouse doors
vestibule door		 transportation
churches
temples
hospitals
museums
mosques
religious institutions
retail centers

Contact Sing Core

Contact the Non-warp True Flat Specialists to see if getting Sing Core inside your door just makes perfect sense.

*Customer will need to perform lab tests to certify hurricane rating for local code compliance.

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Large Oversize Sliding Door Testimonial

Check out the new doors for one of the world’s largest distributors of mint oil! We were really happy to build two sets of large oversize doors for an essential oil warehouse recently. One pair of panels became the double door set opens to the sides (left), while the other set of three rolls off to the same side (right).

Large, oversize sliding door experts

Large, oversize sliding door experts

It was important for the customer that the doors fit their doorway shape and be easy to roll. These sliding doors have a patented torsion box foam core that will keep them lightweight and smooth rolling. The series of three rolling doors link together and slide so easily that one person can push it open with just one finger.

Lightweight sliding doors stronger than steel

Lightweight sliding doors stronger than steel

The customer was satisfied not to need special slider tracks for our panels. Even though the doors are enormous, they don’t have the weight problems of solid core doors.

Strong, thin, lightweight sliding doors

Strong, thin, lightweight sliding doors

 

When Peter hand delivered the panels, everyone was smiling because they knew they had made the right decision in purchasing Sing Honeycomb Panels.