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Interior Sliding Partition Doors

Interior sliding partition doors are all the rage these days when maximizing and consolidating space is of high importance. Nobody knows that better than our friends in New York, where most of our sliding room dividers are installed to quickly create an insulated sound deadening room partition.

Our premiere interior sliding partition doors allow anyone to reconfigure living space quickly and easily using sliding partition doors with patented Sing Core inside. You can easily add a sliding hanging door using inexpensive barn door hardware to create a separation between rooms, or you can divide an entire room in half by using multiple sliding barn doors in a side-by-side configuration to create separate rooms, then open them back up when you want to access the entire space again.

Interior sliding partition doors can take on many appearances, as sliding doors, or many doors can be assembled as a modular moveable partition wall on site and installed without the heavy equipment necessary to hang an enormous sliding room divider and room partition.

What makes interior sliding partition doors with Sing Core inside so in demand in NYC?

The demand is greatest in NYC due to the city’s tendency to grow upward. Tenants are discovering new ways to divide up the living space, and entrepreneurs are finding new ways to divide office space. Installing a sliding room divider or room partition is an inexpensive approach. Bit when your room dividers’ doors have Sing Core inside, you enjoy other benefits that can not be achieved any other way.

Inventor, Peter Sing, has provided to room partition industry his patented Sing Core material to make the best interior sliding partition doors in the industry. Here are the characteristics you can expect,

1 – Lightweight. Sing Core is a lightweight solid hybrid sliding partition door that weighs in at a fraction of any other wood-based solid core door, making it easier to handle, maneuver, and install.

2 – High Strength. Even though a sliding partition wall with Sing Core inside is lightweight, it is not weak, as Sing’s patented core is stronger than steel pound-for-pound and has been independently University rated at 660 PSI, and is used in impact door applications.

3 – High Precision. Sing’s patented core is one of the highest precision cores in the industry sporting +/- .006 in. tolerances, which is of concern for the high-end projects, like the Freedom Tower, One World Trade Center, the tallest building in the country.

4 – No Size Limit. Floor to ceiling, no problem, 20 to 50 ft. wide, no problem. Due to Sing’s lightweight, high strength, and high precision, the largest door companies and best millworks in America are able to make enormous sliding partition doors of any size.

5 – Fully Insulated. Sing’s hybrid solid core doors are fully insulated for sound deadening and climate control, which is used in soundproof and refrigeration applications. Tenants enjoy the insulation for controlling heating and cooling while increasing privacy and security.

6 – Any Type of Door. A door with Sing Core inside could appear as any type of door for the prefect aesthetics and could be made of any desired flat building material. Most common are natural wood grain, MDF, and metals.

7 – Warp-free. The most impressive characteristic of Sing’s room divider doors is that they are guaranteed not to warp, bend, twist, or otherwise fail for 50 years. Undoubtedly, to date, there has been no way to build such an impervious non-warping door. That is, unless you use Sing’s core.

The biggest door companies and best millworks in the USA use Sing’s patented core, especially in their projects calling for doors that are over 4-0 8-0, because they say,

“There is no other way to do it.”

If you are an architect, designer, or door engineer, and you are considering sliding door room dividers for your next project, you would be well advised to spec Sing Core inside your high end and modern sliding doors used as partitions, or operable partitions and movable walls for flawless performance over time.

And don’t forget, it is the only way to create a sliding door with a,

50-year Warp-free Guarantee

Doors with Sing Core inside can be guaranteed not to warp, fail, twist, or otherwise fail (including full structure) for 50-years.

 

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Secrets of Warp-free Large Sliding Barn Doors Revealed

Large sliding barn doors are an important feature in the biggest warehouses and industrial locations in the United States, from military to aerospace a big sliding barn door is often specified in the architectural designs for practicality and ease of use. But the larger the door opening the harder it is to keep these huge sliders from warping. If you cannot keep the door straight, you may have reduced access due to door failure.

For years, inventor Peter Sing’s patented warp-free sliding barn door solutions have been the answer to these massive sliding barn doors, which using his patented and patent-pending anti-warp solutions can be built lightweight, high strength, and be guaranteed not to warp for 50 years, unheard of before the invention of Sing Core.

 

Ceiling mounted barn doors 14 ft. x 3.5 ft. x 2.5 in.

 


Ceiling mounted barn doors closed

 

Interior Barn Doors

As interior design has evolved, the integration of interior modern barn doors in everything from residential to commercial projects has seen rapid growth. Of course, standard-sized interior sliding barn doors do not pose much of a challenge, but if the door exceeds 8 feet tall or a 4-foot width, now you are heading into dangerous territory if you are hoping for a non-warping sliding barn door.

Commercial Steel Barn Door
 

 

Warped Large Sliding Barn Doors

Regardless of the application, large sliding barn doors are going to be problematic, so much so that years ago, the biggest door companies in the USA excluded offering the large barn door from their door schedules, instructing contractors to seek out custom door makers or millworks, because they could not cover these enormous sliding barn doors with any warranty because they were destined to warp and fail not long after installation.

After a while, even the millworks started turning down jobs for large sliding barn doors for the same reason, too many service calls during the warranty period, though this did open a door for door service companies whose job it was to regularly maintain doors, though this was extremely expensive for end user of the warping big sliding barn door.

Not Faulty Design

The problem, it turns out was not with the design, as large sliding barn doors were both stylish and practical, so the architects could not be blamed. The problem is with the limitation in building materials. A dimensionally stable door could be made of a thick solid material such as solid steel, but the bigger the door gets, even solid steel will move according to changes in the environment. Sing is able to bring the ideas of the architects and designers to life in such as way as to provide a 50-year solution to such visionary ideas.


Barn Door Veneer
 

Warp-free Solution

When inventor Peter Sing introduced his warp-free technologies to the large sliding door companies, they embraced Sing’s solutions for warped large sliding doors. Thanks to Sing, they were able to get back into the oversized door market once again. According to them, in their own words. Sing’s core,

“Is the only way to build a lightweight warp-free large door.”

The only way.

Commercial Steel Barn Door

A Door is Not a Wall

It is important to learn what the core structure is made of. Doors are not the same as walls. Doors need to move repeatedly everyday while walls are permanently placed. Walls commonly use 2” x 4” framing methods which do not work well for building doors. If the structure of the door is not strong, it will feel like a solid door. When you close the door, there will be a rattling sounds or it can deform over time. It is very easy to tell, all you have to do is close the door and hear how strong or solid the door is made. It may look the same, but it does not sound the same. You can tell the difference by knockings on the door, you can tell what is inside. Solid like a rick but still light like a feather when you swing the door closed. The structure of the door that makes the difference, not the door skin.

You Want a Warp-free Large Sliding Barn Door

We already know you want a large warp-free sliding barn door. How do we know? Because Sing’s email servers are filled with people asking about how they can get a sliding barn door with Sing Core inside? Unfortunately,

Sing Core Does Not Sell Doors

Even though sliding barn doors with Sing’s core inside are among the best doors in the world, Sing’s factory does not build doors. Rather, they provide the raw warp-free base materials to the door building companies and millworks who create the enormous warp-free sliding barn doors, that the inventor is credited with, even though Sing only provides the base material. So, if you really want one, just contact your favorite door builder or millwork and tell them you want a door, “with Sing Core inside.”


What is the Secret?

How to Build a Large Sliding Door

Undoubtedly, you have wondered how does Peter Sing build such large lightweight sliding barn doors that are stronger than steel pound for pound and can be guaranteed not to warp for 50 years? Following are the methods that Sing uses to build warp-free doors of any size, made of nearly any flat building material, secrets revealed.

First, the architect or door engineers, specify the door dimensions and the material that the door will be made of, and submit the specs to Sing’s True Flat Team. The team goes to work, gathering all the data necessary to predict what the challenges will be for the door. Questions like, will it be an interior or exterior door? Will it be exposed to the elements? In what geographical location will the door be installed and at what altitude? Which direction will the door face?

The team starts with Sing’s patented rigid foam reinforced torsion box core, then add additional patent-pending anti-warp technologies to compensate for exterior door skins and environmental concerns.

That is the secret inside these huge warp-free doors.


How Can You Ship Such Large Doors?

Of course, the military can do amazing things with transportation that cannot be accomplished by mere mortals, so Sing has created a modular technology that supports his 50-year guarantee. In this manner, any size of door can be built and shipped in high precision sections that are assembled on-site.

 

Joining a modular door shipped in sections

This saves so much on shipping and handling costs, and if the large door needs to fit in an elevator or tight doorway, not problem. High precision modular solutions are the answer. Sing Core has built many large doors that are joined on-site without any warping.

Don’t try this at home. Average dowels and even larger biscuit-joining will not prevent door warping. Let’s say you wanted to build a pair of 10’ x 20’ double barn doors that were 2-inches thick. Stacking and joining four 5’ x 10’ x 2” panels together will not be an easy task. But Sing Core has had many years of experience with oversized doors, and has been devoted to solving the common issues with larger modular doors.

If you have a good budget, high precision demand, and no issue accessing the job site then a one-piece large door panel is the way to go, if it can be shipped to your location.

Otherwise, modular door sections joined on-site will be the best option. There are two major factors to achieve high quality when building large doors. One is to make sure there is no warping once the modular sections have been joined. The second issue is maintaining a high precision joint line so that it is not noticeable. This requires a very high precision core to achieve. Sing Core is the most precision door core available, with a tolerance of ± 0.007”. It is important to be sure that the thickness of the core is within these tolerances.

 

Elegant Mahogany sliding door

 

Weight and Strength

Strength plays a key factor when building larger doors. Traditional door building methods may dictate that strong doors are heavy and lightweight doors are weak. Weight is a major issue with oversized doors. Heavy doors are significantly more expensive due to additional structure costs, higher labor costs, and extra shipping and handling costs. Heavy door core does not mean that it will have high strength and the larger the door is, the more strength is necessary to maintain a long lifespan.

When using Sing’s metric interior technology where every two inches is mitigating the potential of the exterior surfaces to move two to three inches at a time. Rigid foam insulation is used inside these small torsion box grids made of vertical grain natural wood fiber which pushes and pulls against the surface material’s tendency to move, keeping it straight when it would otherwise warp. It also provides a huge weight advantage over any other method of trying to keep a door from moving following installation.


What type of skin is best to build a large modular door?

Paint Grade – It is easy to hide the seams. Seams can be almost unnoticeable if modular sections are joined with a Sing Spline. If the spline is made of solid wood, it can move or warp after the moisture levels change and it will be reflected on the surface of the door. This can cause the surface of the door to crack after the seasons change.

HPL (High Pressure Laminate) – See how precise the joint is using only a Sing Spline. HPL is available in a wide variety of patterns. The best choice for HPL is a vertical pattern to help the joint blend into the surface. HPL is a good choice when ordering one of our modular oversized doors. The patterned HPL allows the joint line to be hidden in plain sight. The door can be as big as 12 feet tall and 40 feet wide without having any noticeable seams.

HPL Barn Door Joint
Metal – If it is paint grade metal, the seam can be filled with joint compound and then painted making a seamless joint. Metal doors are traditionally very heavy, but with Sing Core inside your metal door can weight roughly 1/3 of a traditional metal door. You can choose from any type of metal you would like, but our most commonly made metal doors are Aluminum or Cold-Rolled Steel. Click here to see a paint grade Sing metal door.

FRP – FRP, or Fiber-Reinforced Plastic, can be used to make very large doors and very durable doors. FRP can be smooth or have a textured surface. It is much more visually appealing and functions much better than solid wood which has potential to crack, warp, twist, and cup. Besides, solid wood weights a lot more than Sing wood stave planks. Sing wood stave planks are the ideal material to replace solid wood for such jobs as, doors, tabletops, post and beams, and many more. An advantage of choosing wood staves are that they are much more precise than solid wood because their tendency to move over time is minimal in comparison. On the other hand, wood staves are much harder to match with surrounding patterns than a wood veneer skin.

Wood Veneer – Wood veneer has an average thickness of 0.020″-0.030″ and is very difficult to hide joint line in the face of the panel. Wood veneer is often much more challenging because it is usually very thin, normally only 0.020” thick. We always suggest using thicker wood staves which are usually 0.125” thick rather than veneer. However, Sing Core has a proprietary technology to make a veneer panel seamless as large as 10′ by 16′. This requires the veneer to be staggered and hot-pressed. It is very costly to use veneer, oftentimes we use wood staves to build larger doors.

For a tighter budget, we recommend using a paper backed veneer which only requires being cold-pressed. Sing Core provides the smoothest MDF skin for our clients to hot-press. Cross banding is not required with our smooth and high precision substrate, which may be hard to believe for some people. We have been doing this for many years with our innovative technology. We always recommend that our clients purchase our veneer substrate, complete with the same warp-free guarantee, and hire your local veneer contractor or do it yourself to save some money. One advantage to using a wood veneer as the skin for your door panel is that veneer can be easily matched to the surrounding area. One disadvantage to using wood veneer skin is that it is not well suited for exterior purposes, such as entrance door, and it can be difficult to repair if damaged. Veneer skins are the also limited to the maximum door size of 10′ by 16′.

 

Gallery

 

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Wide Barn Door

The True Flat Team at Sing Core is enabling architects, designers, and manufacturers of wide barn doors to build and deliver the best barn door for use as a highly efficient upgrade to any industrial barn door application that can be guaranteed not to warp.

10 foot x 25 foot wide barn door

And when it comes to wide barn doors, nothing is better than having Sing Core inside to make the difference for economy, survivability, sustainability, and longevity over time. If you are looking for a wide barn door, you might be looking for a sliding barn door that is 60-inches wide. That is considered a wide door and would be in the category of doors that would possess problems associated with keeping the wide barn door straight.

If there is one thing we know, it is that wide doors, over three-and-a-half feet start becoming problems for moving for a variety of reasons including change in weather, moisture, season, sunlight, temperature, barometric pressure, etc.

Top 5 Widths of Wide Barn Door

1.  60 inch wide barn door

2.  6 foot wide interior barn door

3.  8 foot wide barn door

4.  10 foot wide barn door

5.  7 foot wide barn door

The most common widths of wide barn doors start at 60-inch wide. This is where the trouble with warping begins to be problematic over time. 6-foot-wide interior barn door is an in-demand spec, followed by 8-foot-wide barn door, then 10-foot-wide barn door, with 7-foot-wide barn door in the caboose position.

The True Flat Team at Sing Core, while they are very serious about the work they do by providing the biggest and best door companies, millworks, and custom wide barn door manufacturers with the technology to build warp-free doors, the team gets a little more excited about projects that feature a 20 foot wide barn door or greater. This is really where inventor Peter Sing’s patented Sing Core really shines.

That is, to build a very wide sliding barn door that is guaranteed not to fail. The only way to build a very wide barn door that does not warp, is to build your door with Sing Core inside, or else your door is limited to the limitations of the material being used.

Sing’s core is highly specialized in the area of extreme doors, doors that exceed the specifications of AWI standards, doors of enormous size, up to 50 feet tall or wide, or more. “Now, that’s a door!” exclaims inventor and CEO of Sing Core, Peter Sing.

The more extravagant extremely wide sliding barn door is the kind of door that Sing Core loves, because there is no doubt that there is no other way to build a lightweight high strength fail-free door of such enormous size. In fact, no one says it better than the people who manufacture these wide barn doors. They say,

“There is no other way to do it.”

Though it may be true that anyone cold build such a wide door, but there is no way to build such a door to be fail-free. You might ask,

“Fail-free for how long?”

You might be surprised to discover that doors built with Sing Core inside are guaranteed, with a more powerful guarantee than any other door built in the USA, for Sing’s doors are,

Guaranteed Warp-free for 50 Years

This is not a misprint. Peter Sing’s core makes these doors almost impervious. Doors made with Sing Core inside can be guaranteed for 50 years to prevent any warping, bending, twisting, cupping, or delamination (including full structure). 50 years. No other lightweight door could hope to achieve these heights of performance and sustainability.

 

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Extra Wide Door

The extra wide door adds an additional edge and flair to any project, whether it is automatically retractable, articulated by hand, or hidden within a wall pocket. As magnificent as extra wide doors are, there are challenges facing the architects, designers, manufacturers, installers, and end users which are best solved prior to attempting to incorporate an extra wide door in your next project.

Of all the extra wide doors, the wide barn door is the most popular method of handling wide doorways and openings in industrial and commercial applications. The standard configuration of a wide barn door consists of a large wide panel with wheels in tracks in or on the door’s base and suspended from wheels in guides at the top of the door, enabling it to articulate, open and close, by sliding back and forth left to right.

An extra wide barn door presents challenges, the first of which is the extreme weight of the extra wide door. No doubt the door is large, and the common belief is that it makes sense to be made of heavy material because it needs to have structural integrity. Until recently very heavy building materials were thought to have the greatest dimensional stability. That was, until the introduction of patented and patent-pending Sing Core.

Sing Core offers a lightweight solution for building extra wide exterior doors which are far more dimensionally stable than heavier building materials. But weight is not the only challenge faced by those who would like to incorporate an extra wide door into their project.

The problem with extra wide doors is that they are difficult to keep straight over a wide span. They have a tendency to move according to variations in the environment. If sunlight hits the door, the temperature changes. If there are variances in moisture content on either side of the door, and any other number of reasons, that huge door panel will warp, bend, twist, cup, or start to come apart, resulting in utter failure of the door altogether.

Extra wide doors are expensive, but the cost of maintenance on such a door over time far exceeds the initial cost of the wide doorway solution.

That is where the characteristics of inventor Peter Sing’s patented and patent-pending extra wide door core shines brightly. Until the release of Sing Core, there was no way to create a large lightweight panel with the structural integrity to remain warp-free over the life of any extra wide exterior doors.

The unique attributes of Sing’s core imbue any tall and extra wide door with the ability to be incredibly lightweight with superior dimensional stability while being fully insulated for both climate control and sound deadening capabilities. Take a look at the characteristics of Sing’s core,

Lightweight

A fraction of other standard high strength building materials

High Strength

Dimensionally stable, independently tested, stronger than steel lb. for lb.

Fully Insulated

Insulation values are customizable to meet your specification. Start at R3.5.

Soundproof

Patented Sing Core is used by soundproof door companies for sound deadening

Warp-free

Non-warp Sing Core uses patented and patent-pending stiffening technologies

Sing’s groundbreaking technologies empowers manufacturers of extra wide doors to create doors of enormous size which are lightweight and can be guaranteed to remain straight and true over time. In fact, any extra wide door with Sing Core inside can be guaranteed not to warp, bend, twist, or otherwise fail for 50 years.

50 YEAR WARP-FREE GUARANTEE

Doors with Sing Core inside can be guaranteed to remain warp-free for 50 years. Inventor Peter Sing provides his patented core and patent-pending stiffening technologies to the biggest and best door companies, millworks, and custom extra wide door manufacturers.

The biggest door companies in the USA started to exclude large doors from their door schedules due to the constant problems associated with failure in the field. Most of them guarantee their doors for 1 year or more following installation. Since those wide doors failed, they would exclude them from the warranty with a specific rider, or eliminate them from the order altogether, forcing the customer to outsource the large doors to a millwork.

Now that the most powerful door companies in the world have access to Sing’s core, they are back in the extra wide custom door business again.

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Sing Core Standard Large Exterior Doors

In the not so distant past, you had to be at least a multimillionaire to enjoy having a large pivot door with Sing Core inside.

The inventor of Sing Core has always desired to see his patented and patent-pending core technologies inside every home in the United States, and in keeping with that dream, Peter Sing and his True Flat Team have come up with some standard-sized massive exterior doors that can be made in quantity, instead of the one-off method of manufacture and artistic creation process which had been the model previously.

4’0″ x 7’4″ Sing Core Standard Large Exterior Doors

One Size Fits All

All standard exterior doors sizes are limited to one size 4’0” x 7’4” pivot doors are customizable and are designed and built to be trimmed up to 2-inches on all four sides. Original size of 48” x 88” may be reduced to any size to 44” x 84”

Pivot Door, Sliding Door, Hinge Door

Use these versatile doors any way you please.

Standard exterior door details, click door of your choice for more information:

Paint Grade MDF exterior door

48” x 88” x 2.25” thick

Price: $5,000 Promo: $950

Save: $4,050

 

White Oak with Walnut exterior door

48” x 88” x 2.25” thick

unsanded/unfinished

Price: $6,000 Promo: $1,900

Save: $4,100

 

Hard Maple wood stave exterior door

48” x 88” x 2.125” thick

unsanded/unfinished

Price: $6,000 Promo: $1,500

Save: $4,500

Every door is backed by Sing Core’s unparalleled

50-Year Warp-free Guarantee

Oftentimes people call us because their new door has failed not long after installation, especially exceptionally large doors, in challenging climates, and due to weather exposure. Thanks to our patented and patent-pending technologies we are the choice product for high-end door manufacturers in the USA, and Sing Core is widely known as,

“The only way to do it.”

The only way to build large doors that are not recalled due to failure and guaranteed to remain warp-free for 50 years.

Note: We do not sell doors. We only supply the best door panels to the best door manufacturers and millworks to build the best doors in the world.

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Pivot Front Doors

Sing Core is the premiere source for extraordinary pivot front doors which are by far the most sought after for high-end clientele who only desire to have the best. By the best, we mean, the only Eco-friendly lightweight, high strength, fully sustainable pivot front doors backed by a 50-year warp-free guarantee in the world.

Pivot front doors are growing in popularity among the most contemporary architecture and design projects emerging in the industry today. These visionaries are imagining pivot front doors which are signature pieces setting epic locations apart from their peers, and the bigger the pivot front door, the better.

Modern pivot doors need not follow the basic design pattern of their ancestral designs. They used to be big and heavy, and while these designs always garnered attention, they were constantly needing maintenance to the door, the hardware, the frame, and the structure which featured such a door.

Door engineers have long struggled with the task of trying to bring an architectural pivot front door to life without having to incur impossible ongoing maintenance costs associated with having a pivot front door of such magnitude.

It’s not enough to be a large oversized pivot door, because these are exterior pivot doors, where one side faces the interior of the structure while the other side may be facing the elements and may be exposed one hundred percent to the weather.

The prefect recipe for pivot door problems which keep the pivot door engineers up at night struggling to find solutions for the challenges associated with these pivot front doors.

Only now, thanks to inventor Peter Sing who is also the president of Sing Core, door companies and millworks all over the world are finding the Sing solution which empowers modern architects and designers to unleash their creative genius when it comes to pivot front doors.

This means pivoting front doors can be bigger than ever, without the heavy commitment to and cost of continued maintenance to the door, hardware, and the structure. Plus, when you make your pivot doors with Sing Core inside, they are built to last for centuries, but guaranteed not to warp, bend, twist, or otherwise fail, for fifty years.

The invention of Sing Core is the latest revolutionary advancement in pivot front door building technology, enabling you to create super straight and strong ultra-thin pivot doors that will continue to operate smoothly without damaging the pivot door hardware, frame, or structure over time.

Really big (any size up to 40 ft. or more), lightweight (a fraction of other pivot doors), high precision (Sing’s core hosts +/- .006 in. tolerances), perfectly straight (exceeding AWI non-warping standards), and high performance guaranteed for 50 years.

Owners of these exquisite high-end large oversize entrance doors proclaim,

“There’s no other way to do it.”

Each one of Sing’s custom high-end pivot entry doors is made to order using locally sourced materials and craftspeople who have the expertise to deliver the exterior pivot doors which are acclaimed as the highest quality pivot entry and front doors made in the USA.

Now your modern style doors can be of enormous size and provide a bold yet elegant main egress point of attraction which will leave your visitors in awe. And you’re not limited by either materials or design characteristics.

Any Style of Pivoting Front Door

Not only are you new nearly unlimited in size for your pivot entry doors, but you are empowered to submit any or all of your unique ideas about pivot doors, entry doors, and doors which have yet to be conceived of, as you can have nearly any available flat building material as your surface material, paving the way for a nearly unlimited array of contemporary pivot front doors.

Sing’s patented and patent-pending pivot door core is featured among the most expensive pivot doors in the world and commonly these exotic natural-grain pivoting wooden doors appear as large mahogany pivot doors, walnut pivot doors, oak pivot doors, and cherry wood pivot doors.

Expressed as more modern pivot doors, may host such materials as aluminum pivot front doors, or steel pivot entrance doors.

Versatility is the order of the day, when it comes to pivot front doors with Sing Core inside, as they are straight and strong enough to carry the heaviest and hardest materials without compromising the precision or anti-warp characteristics.

Add concrete, steel, lead, or any other heavy dense material to Inventor Peter Sing’s core.

Now, you can feature pivot front doors in all kinds of applications.

 

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Wholesale Hard Maple Exterior Door

Wholesale Hard Maple Exterior Door

The surplus exterior door has 1/8″ hardwood covering both sides and is comprised of patented Sing Core lightweight core. Having Sing Core inside means that this door is dimensionally stable and crafted with the highest precision. Sing Core inside keeps weight down while preventing warping and is backed by the same 50 year guarantee! Pictured is the Hard Maple stave skin. Measures a whopping 48″ x 88″ x 2.125″! This door sells for over $6,000, but you can get one today for only $1,500 if you act now. This door only comes in one size at this time, but can be trimmed up to 2″ on each side.

The Only 50-Year Warp-Free Guarantee

We work with patented Sing Core to bring you an Eco-friendly exterior door that can be easily installed, that is lightweight, stronger than steel pound for pound, fully insulated for climate control and sound deadening capabilities. And the best part? Your standard exterior door is fully guaranteed not to warp, bend, twist, or otherwise fail for 50 years.

Includes unfinished door slab only.

Scroll down for more information.


*see below for lead time and rush information

Description

What is included in your order:

Purchase includes the unfinished door slab.

 

Options

 

This door slab can be used with pivoting hardware, hinging hardware, or even sliding hardware.

The door slab has a solid wood perimeter that can be trimmed up to 2″ on each side, allowing the door to be anywhere from 48″x 88″ to 44″x 84.”

Lead time

 

Surplus lead time is 2 weeks. Standard lead time is 6-10 weeks. Rush orders will be accepted and charged accordingly. For more information, click here.

 

Customization

 

You have the option to customize however you would like. If this is something you are interested in, please make a note in your estimate submission. Feel free to give us a call or send us an email.

 

Phone: (360) 495-3577

Email: info@singcore.com


Help

This section is to help in determining what options to choose for your very own Sing Core exterior door.

Choosing the right door size

There are two main measurements to know when choosing the best fit for your new door.

 

Rough Opening

The rough opening is the space in the bare wall before a frame and door are installed or replaced.

 

Frame size

The door frame size involves measuring the width of the bare wall before the door or frame is installed, leaving about 1/2″ extra for better fitment. You also need to consider how thick the frame itself need to be to support the door of your choice.

Choosing the perfect skin

Modern doors are available in a wide array of skin options. This exterior door is available in MDF or Wood, the species currently available is White Oak, White Oak with a Walnut inlay, or Hard Maple. See below for examples.

Rush Options

A link to the rush options page is in the Lead Time section above or can be found here. Rush Options


Shipping Information

 

Our doors are shipped freight. We work with many freight companies to get you the door you need. Shipping times will vary depending on where you are located.

Every order is shipped from our factory in McCleary, Washington.


Ready to order?

*sold to trade professionals only

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Wholesale White Oak And Walnut Exterior Door

Wholesale White Oak Exterior Door With Walnut Inlay

The surplus exterior door has 1/8″ hardwood covering both sides and is comprised of patented Sing Core lightweight core. Having Sing Core inside means that this door is dimensionally stable and crafted with the highest precision. Sing Core inside keeps weight down while preventing warping and is backed by the same 50 year guarantee! Pictured is the White Oak skin with Walnut inlays. Measures a whopping 48″ x 88″ x 2.25″! This door sells for over $6,000, but you can get one today for only $1,900 if you act now. This door only comes in one size at this time, but can be trimmed up to 2″ on each side.

The Only 50-Year Warp-Free Guarantee

We work with patented Sing Core to bring you an Eco-friendly exterior door that can be easily installed, that is lightweight, stronger than steel pound for pound, fully insulated for climate control and sound deadening capabilities. And the best part? Your standard exterior door is fully guaranteed not to warp, bend, twist, or otherwise fail for 50 years.

Includes unfinished door slab only.

Scroll down for more information.


*see below for lead time and rush information

Description

What is included in your order:

Purchase includes the unfinished door slab.

 

Options

 

This door slab can be used with pivoting hardware, hinging hardware, or even sliding hardware.

The door slab has a solid wood perimeter that can be trimmed up to 2″ on each side, allowing the door to be anywhere from 48″x 88″ to 44″x 84.”

Lead time

 

Surplus lead time is 2 weeks. Standard lead time is 6-10 weeks. Rush orders will be accepted and charged accordingly. For more information, click here.

 

Customization

 

You have the option to customize however you would like. If this is something you are interested in, please make a note in your estimate submission. Feel free to give us a call or send us an email.

 

Phone: (360) 495-3577

Email: info@singcore.com


Help

This section is to help in determining what options to choose for your very own Sing Core exterior door.

Choosing the right door size

There are two main measurements to know when choosing the best fit for your new door.

 

Rough Opening

The rough opening is the space in the bare wall before a frame and door are installed or replaced.

 

Frame size

The door frame size involves measuring the width of the bare wall before the door or frame is installed, leaving about 1/2″ extra for better fitment. You also need to consider how thick the frame itself need to be to support the door of your choice.

Choosing the perfect skin

Modern doors are available in a wide array of skin options. This exterior door is available in MDF or Wood, the species currently available is White Oak, White Oak with a Walnut inlay, or Hard Maple. See below for examples.

Rush Options

A link to the rush options page is in the Lead Time section above or can be found here. Rush Options


Shipping Information

 

Our doors are shipped freight. We work with many freight companies to get you the door you need. Shipping times will vary depending on where you are located.

Every order is shipped from our factory in McCleary, Washington.


Ready to order?

*sold to trade professionals only

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Large Interior Doors

Masters of oversized doors, Sing Core has been enabling the biggest door manufacturers in the USA to make the best biggest doors that can be made and guaranteed to remain warp-free for 50 years. For 50 years, the major door companies opted out of the large door marketplace because the rate of complaint and return was too high, easily eating up year-end profits.

So, the door companies would supply all the standard-sized door while referring the large exterior doors, large pocket door, large interior doors, large glass sliding doors, large garage doors or large wooden doors to a millwork who specializes in one-off specialty doors and let them deal with the service calls.

Then, about 20 years ago the millworks started making doors with Peter Sing’s patented Sing Core inside. Now they could make huge exterior doors and large interior doors, including large wooden doors that would stay straight and true for 50 years, guaranteed. Until the invention of Sing’s core, this was never possible in the large interior door industry.

It took a few years for the standard door manufacturers to come around, but they did. Now you can do to just about any door company and get the entire door schedule for any project including the huge mammoth-sized doors all sourced from one company, plus the entire package could be covered by the manufacturer’s warranty without having to have a rider to exclude the big interior doors or enormous exterior doors.

Sing supplies the warp-free door blanks for each door company’s designer oversized doors which are available in any custom size large doors up to 50 ft. Sing’s interior doors come in a wide variety of styles to accommodate any size or style, allowing architects and designers to freely express themselves in terms of door sizes with unlimited large interior door options.

Floor to ceiling doors are reaching new heights of interior door designs for everything from custom interior to wine cellar doors in contemporary architecture and design projects across the USA. These large luxury interior and exterior doors are available in any flat building material such as wood, steel, and fiberglass exterior, and interior doors, including storm, and patio doors.

No job is too challenging for patented Sing Core. Sing has a specialized True Flat Team which reviews every job that would otherwise be too challenging to consider for any conscious project manager. The team reviews all the data of the fashioned interior door designs and comes up with the best solution(s) to provide a door that is

Lightweight (a fraction of the weight of other solid core doors)

High strength (Sing Core is rated at 600+ PSI, stronger than steel lb. for lb.)

Fully insulated (for sound deadening and climate control)

High precision (Sing’s core +/- .006 in. tolerance)

Warp-free (guaranteed for 50 years)

As many of Sing’s clientele has admitted,

“There is just no other way to do it.”

Sing’s Core doesn’t have too much advantage for use in standard sized doors, though companies who specialize in impact doors, sound proof doors, and high end refrigeration applications do build smaller doors with Sing Core inside.

Where Sing’s core really shines is in doors that start at 48″ x 96″(4′-0″ x 8′-0″) doors and go up from there (to 50 feet?). You probably want to know,

How to buy the best large interior doors for your home

It is easy if you have an architect onboard, your architect simply specifies a door with “Sing Core inside” then the rest of your team just makes it happen. If not, you can contact any of your favorite local door companies or millwork (just Google “millwork near me”) and tell them what you want. Peter Sing and his True Flat Team will use all their resources, patented and patent pending, to create for you the warp-free large interior doors of your dreams.

How can Sing deliver such large doors?

Military and government agencies are able to coordinate transfer of items that are too large for average transport, otherwise Sing designs them as modular big interior doors that can be assembled onsite, with all the precision of being assembled in his factory. This is another piece of the puzzle that Sing has mastered.

So, whether you are looking for the highest quality exterior doors or the widest range of interior door styles then and you desire only the best doors ever made with the best warranty in the United States, then made in the USA premium doors with Sing Core inside are the only doors that will do.

Accept no substitutes. (Don’t get caught trying to switch a regular door with one that has been specified as having Sing Core inside, because when it fails, the customer will contact Peter Sing, and everyone will know that you tried to cut corners… true story.)

Everything from impact resistant slab doors to premium and unique interior doors because every door with Sing Core inside is an individual work of art, which is guaranteed not to warp, bend, twist, cup, or otherwise fail for 50 years.

Make sure your handcrafted beautiful custom wood doors and beautiful solid wood interior and exterior doors have Sing Core inside.