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WOOD VENEER DOORS

WOOD VENEER DOORS by SING CORE

The top doors in America are installed in the top floor of the tallest building in the United States, located at One World Trade Center, New York. These 16 ft tall 3 ft wide 2.25-inch thick warp-free wood veneer doors are among the only Eco-friendly lightweight, high strength, insulated doors made in the USA that can be guaranteed not to warp, bend, twist, cup or otherwise fail for 50 years.

Therefore, if you’re one of the top contractors in America, when you’re called on to deliver the best tall doors to the top of the World Trade Center, you want to make sure you’re not embarrassed when your sleek white oak doors fail due to warping. See: How to Make the Best High-end Veneer Doors.

Tallest 16 ft. doors at the top of the tallest building in the USA

Underlayment

The secret to creating an incredibly smooth wood veneer door is what lays underneath the natural wood veneer. At Sing Core, the True Flat Team is likely to laminate 0.020 veneer over top of 1/8″ MDF on top of 1/4″ plywood. Of course, your door will only remain straight for 50+ years if you have Sing Core technology inside.

WOOD VENEER DOOR

Professional 

Additionally, when your reputation depends on it, you need the backing of a professional company that can deliver the goods and have your back, and there’s only one company in the United States that builds large doors which can be guaranteed for 50 years.

Second, the most exclusive architects in the world specify “Sing Core inside” their doors when nothing less than the very best will do, and you want your customer to be on the top of the world.

 

What makes a hot-pressed panel worth so much more with Sing Core inside?

Architects are increasingly specifying their large high-end hot pressed veneer panelized walls, features, and doors have Sing Core inside (accounting for about one-third of all our products which are sent to the greater New York-area). The contractors generally contact Sing Core directly first, due to being specified. Though Sing Core does not actually do the veneering. Sing Core provides the high precision substrate that is shipped 3,000 miles from the manufacturing location in Washington State, to the high end millwork in New York (or wherever the nearest hot press specialist is near the construction site) to do the veneering there.

We always recommend using your local veneering professionals for custom veneer doors. Sing Core does not provide veneer or install it.  It is our policy to subcontract veneering jobs to the best veneering professionals in the USA.

If you offer hot-pressed veneer services or cold-press veneering to your clientele, your highest paying customers will gladly pay you more if your panels have Sing Core inside.

Wood Veneer Doors

Hot-pressers Are More Successful and Profitable with Sing Core’s Wood Veneer Doors

For years, Sing Core has been providing high-end local and nationwide hot press veneer professionals with premium core material that eliminates the need for crossbanding.

Let’s face it, nothing can compete with the beauty and elegance of a perfectly hot-pressed panel, and for that sweet-spot in the marketplace, those clients that demand the best and are willing to pay for it. The manufacturers and millworks that have Sing Core inside their hot-pressed products are making bank by specializing in these ultra-high-end projects.

If you are a veneering professional, then we would like to work with you! Please contact us, we have plenty of veneering jobs to subcontract out.

For standard sized doors, we send our premium substrate to veneering professionals near the job site to be hot-pressed.  If the doors are very large, we may have the veneering professionals prepare the veneer for us to cold-press in our facility.

Let’s take a tour of these revolutionary doors from the factory to the top floor of World Trade Center One…

Photos taken from the edge of the panel show the perfectly straight quality. The panel shows glue on the edge, because the customer requested untrimmed ends.

Measuring at 2.25 inches thick, this is the most premium quality door money can buy.  Due to the patented and patent pending SingCore technology, this 15.5 foot long, 3 foot wide, 2.25 inch thick pivot door is straight as an arrow, better than AWI standards.

Many Ways to Build Wood Veneer Doors

Depending on your budget, you have a number of different options when you opt to go with Sing Core.

  • You can order substrate only and apply your own soft wood or hard wood veneer (economy option)*
  • Additionally, you can order substrate only and have your local veneering professional apply your veneer of choice (recommended option)*
  • You’re also welcome to choose solid wood edge banding
  • Finally, you can choose a hardwood frame

How to Build the Perfect 16 ft. x 3 ft. High Precision Warp-free White Oak Door

You start with patented and patent-pending Sing Core inside sandwiched between American-made A/B plywood with solid oak around all four edges.

Then, after pressing, trim the edges, then add another 1” x 2.25” solid oak to the edges. Sand it to perfection then hot-press 16th-inch white oak veneer, then all you can see is solid white oak. Beautiful.

Therefore, the result is a perfectly flat lightweight white oak door that is stronger than steel pound-for-pound, weighing in at a mere 220 lbs.

 * Professional veneering can be very tricky. If you are getting substrate from Sing Core and having your millwork (or someone else) apply the veneer, be certain to affirm that they have the expertise to apply the veneer appropriately. We use the best of veneering professional in Washington state. We can guarantee our veneering, if you have veneering done off-site, it is their responsibility to do it correctly. A faulty veneer could jeopardize your Sing warranty.

Ask us if you have any questions.

Full Service Veneering: WOOD VENEER DOORS

We offer our ultra high quality veneering service for customers who need that extra level of quality.  

However, the process of applying veneer isn’t simple.  One wrong move can ruin your product, which means large amounts of money fixing the problems.  It can even result in the need to buy new doors. We have solved all of these problems for you, but your choice of methods will ultimately depend on your budget.

WOOD VENEER DOORS

WOOD VENEER DOORS by SING CORE

 

If you decide to veneer your own doors, we offer more than one option:

Premium Option

MDF layer.  First, we apply an MDF layer to our legendary ply substrate.  Therefore, this offers you the most stable option for applying your veneer job.  Additionally, you can save money on your end by getting the job done correctly the first time.  Besides, if you do not apply your veneer to the proper surface, it could result in having to redo your veneer job.  In the worst case scenario, applying your veneer improperly can ruin the doors.  In conclusion, with our premium option, we ensure you a proper surface for your application.

Standard

Furthermore, our standard substrate, made from high quality plywood, offers you a great surface to apply your skins, but you must make sure to do your veneer job properly, or it could result in a ruined veneer job.  Veneering requires experts who have a very high level of skill.

Note: Sing Core is not responsible for any damages which result from skins improperly applied by our customers.

Other Skin Options:

Finally, we offer soft wood and hard wood plywood skins.  We also offer MDO, MDF, Formica, Masonite, and many other skins.  Click here for more information.

In conclusion, we offer full on wood stave skin doors, made with the highest quality hard and soft wood 1/8″ 
real hardwood stave skin. 

 

See more of Sing Core’s Custom Oversized Doors HERE

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One World Trade Center Doors

The top doors in America are installed in the top floor of the tallest building in the United States, located at One World Trade Center, New York. These 16 ft tall 3 ft wide 2.25-inch thick warp-free door panels are among the only Eco-friendly lightweight, high strength, insulated doors made in the USA that can be guaranteed not to warp, bend, twist, cup or otherwise fail for 50 years.

Top floor of One World Trade Center has “Sing Core inside.”

If you’re one of the top contractors in America, when you’re called on to deliver the best tall doors to the top of the World Trade Center, you want to make sure you’re not embarrassed when your sleek white oak doors fail due to warping.

14' Tall Oak Doors in One World Trade Center

When your reputation depends on it, you need the backing of a professional company that can deliver the goods and have your back, and there’s only one company in the United States that builds large doors which can be guaranteed for 50 years.

The most exclusive architects in the world specify, “Sing Core inside,” their doors when nothing less than the very best will do, and you want your customer to be on the top of the world.

Let’s take a tour of these revolutionary doors from the factory to the top floor of World Trade Center One…

Photos taken from the edge of the panel show the perfectly straight quality. The panel shows glue on the edge, because the customer requested untrimmed ends.

2.25” thickness. Due to the patented and patent pending SingCore technology, this 15.5 foot long, 3 foot wide, 2.25 inch thick pivot door is straight as an arrow, better than AWI standards.

How to Build the Perfect 16 ft. x 3 ft. High Precision Warp-free White Oak Door

You start with patented and patent-pending Sing Core inside sandwiched between American-made A/B plywood with solid oak around all four edges.

After pressing, trim the edges, then add another 1” x 2.25” solid oak to the edges. Sand it to perfection then hot-press 16th-inch white oak veneer, then all you can see is solid white oak. Beautiful.

The result is a perfectly flat lightweight white oak door that is stronger than steel pound-for-pound, weighing in at a mere 220 lbs.

Ask us if you have any questions.

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Sliding Glass Doors

When you’re not just looking for any sliding glass doors, there’s a good chance you’re looking high and low for the best sliding glass door to suit your needs, your particular taste(s) as well as beautiful sliding French and patio doors. Normal, off the shelf glass sliding doors are not going to suit what you want in a sliding glass door. Chances are you’re looking for the best sliding glass doors, doors that are not your run of the mill sliding French or patio doors, but unique one of a kind sliding glass patio doors.

About Sliding Glass Doors

Standard sliding glass doors come in vinyl, fiberglass, rolled or extruded aluminum, and in the more expensive projects featuring natural wood to show case and frame the metal. Enter the new generation of large sliding glass doors specified and insisted upon by the most high-end door companies, architects, designers, engineers, and custom sliding glass manufacturers in the world.

The most popular sliding glass doors are inexpensive, made of vinyl, fiberglass, rolled or extruded aluminum. You are not likely to find these materials in the higher caliber jobs in the most elegant locations around the world. In these most exclusive projects, you’re more likely to find natural wood grains or hot rolled steel featured.

Now, you can have nearly any material featured in your sliding glass doors, with Sing Core inside to make the best sliding glass doors in the world. This new way of building impeccable sliding glass doors is thanks to Peter Sing’s patented and patent-pending sliding glass door frame material which enables the creation of Eco-friendly high-end sliding glass doors of any size to be built and be fully sustainable.

All backed by Sing’s unparalleled

50-Year Warp-free and Structure Guarantee

There exists no other way to build a lightweight impervious sliding glass door to come with such a guarantee without Sing Core inside.

“If we couldn’t do it, we couldn’t say it.”

~ Peter Sing

 

 

If you really want the best sliding doors, you will need to enlist the skills and artistry of a local millwork or custom sliding door manufacturer.

Sliding Glass Doors

Sliding glass doors are the most prevalent and sought after styles of patio doors, which can and often do include several sliding glass doors in succession including overlapping sliding glass doors which are also called bypass sliding doors because one door slides over another door panel, which may or may not be a sliding patio door. Depending on the design, one or more glass doors may be stationary.

The best sliding glass doors featured in high end homes are made with wooden sliding doors that feature large glass window lite cutouts. It stands to reason, if you’re going to have a nice patio, you’re going to want to enjoy it both from the inside and the outside of your home. So, unless you’re primary concern is high security level patio doors which can be made of Kevlar and featuring Lexan clear polycarbonate, you’re going to want sliding patio doors with a view (glass installed).

Sliding Glass French Patio Doors

Those sliding patio doors with the big glass cutouts? We call these sliding glass doors, “French patio doors.” By definition a French door is a usually a wood door featuring a large window glass pane. Sliding glass French doors allow you to enjoy the beauty of the outdoors regardless of the time of year. French doors are Eco-friendly in that they maximize the availability of the natural lighting.

For The top of the line, highest end sliding glass doors, look no further.  We can make panels that will shock and awe even the competition.

 

 

 

If your French patio doors have Sing Core inside, they are lighter in weight and also insulated for climate control and also sound deadening qualities, maximizing your investment for the most Eco-friendly French patio doors.

While the sliding French patio door is intended to provide access to and from the patio area, they are also elementally and visually impressive enhancing the overall appearance of any patio access area. Sliding French patio doors are by far the most elegant patio doors, and backed with Sing Core’s 50 year warp-free and structure guarantee, are by far the most sustainable patio doors.

Wooden Sliding Glass Doors

Since wooden sliding glass doors are the preferential choice of designers, architects and owners of the most expensive homes ($20 Million & up) chances are these are going to be wooden sliding doors which are featuring large lite cut outs and are likely to be very tall, which could be 16 ft. tall wooden sliding glass doors, or taller sliding glass French patio doors. Wooden sliding doors (especially if they are large wooden sliding doors) present a number of challenges for the architects, designers and millworks or custom door manufacturers who build them. The number one problem with any long span of wood is that it will warp. It’s not a matter of if the large wooden sliding door will warp, but when it will warp.

That’s why it’s so important to have Sing Core inside your large wooden sliding doors, because a warped wooden sliding door which does not open of close is not a door at all. Although, if your door has a large window glass pane lite cutout, you will still have the view, even if the door fails, your wood French patio door can be a French patio window.

The wisest most efficient designers and architects increasingly are specifying that all their large wooden sliding doors with glass and wooden French patio doors have “Sing Core inside.”

Sliding Glass Door Design

The design of glass sliding doors, and sliding French doors in particular, can be complex and may require a true team approach to the glass sliding door design. The architect can specify the glass sliding doors, and the designer (who may also be the architect or the owner) knows what they want. The concerted efforts of the custom glass patio door builder or manufacturer, the millworks, (as well as Sing Core, if specified) and the install team, must work in tandem to solve all the pending challenges that may arise from the glass sliding door design.

Extra care must be taken in the selection of the glass sliding patio door hardware, ensuring that it is rated for exterior use, and also matched to the weight of the sliding patio glass door as it was designed. The weight of the sliding glass patio doors dictates the types and styles of sliding patio door hardware which will be necessary for improving performance and reducing maintenance over time.

For patio doors that have solid warp-free Sing Core composite core inside, these patio doors will be lighter in weight than other solid core doors, reducing the cost of what otherwise might require heavy duty sliding door hardware, which can cost many times the cost of the sliding doors themselves.

Modern Patio Doors

In this day and age, modern glass sliding doors need not adhere to the same design characteristics as their sliding patio door forerunners. In the most contemporary architectural designs custom lite openings can be designed which contrast wildly in comparison to earlier traditional designs.

 

 

It is common for Sing Core to pre-cut custom lite openings in modern sliding patio doors based on the visionary drawings of the contemporary architect, designer or owner.

By altering and creatively designing the glass openings in an otherwise sliding French door configuration, a unique glass design and install can increase the effective curb appeal and radically enhance the perceived value of a home, when the owner desires to be uniquely separated from the pack.

Plus, high end modern sliding patio doors need not be limited to being manufactured of wood. You might see these highly individualized, one-of-a-kind patio doors made of hot rolled steel, copper, or concrete, because custom patio doors with Sing Core inside could be made of any available flat building material.

The Only 50 Year Warp-free Guarantee and full structure warranty

 

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Pivot Door | Pivot Door

Sing Core’s Pivot Door

Sing Core's Pivot Door

Sing Core’s Pivot Door

A Pivot Door is one of the most significant features in contemporary architecture. When contemplating your design, contemplate Sing Core’s Pivot Door. Sing Core builds the premier lightweight fully insulated and sound-deadening Pivot Door. This is the perfect Pivot Door for your new construction or remodel. 

A pivot door for your main entryway makes a statement to your visitors. It’s the first thing people see before they enter your home. It also creates curb appeal like no other. 

Get the most impact from your pivot door, choose Sing Core! Sing Core’s custom design means your pivot door is built impressively tall, wide, or lightweight. With Sing Core, your home is sure to impress. A quality pivot door makes a statement from a distance. 

How large to build your pivot door? The answer is resounding. “As large as possible!” A bigger pivot door leaves a bigger impression! It’s not uncommon for Sing Core pivot doors to stretch from the floor to the ceiling. With our lightweight core, this size is feasible. Choose a front door that’s sure to grab attention!

Pivot Door

Pivot Door

How to Design a Pivot Door

Your pivot door is only limited by your imagination! Sing Core is compatible with any flat building material. With complete customization, you can let your creativity fly! 

Consider your material choice. Consider the weight. Heavier materials make create strain on larger doors. This is especially true when the door is over 8 feet tall or 3.5 feet wide. That’s why Sing Core’s patented lightweight core technology is so important. We have flexibility with our fully insulated lightweight core.

Extra weight can create problems installing your pivot door. Weight is a burden on your door hardware, leading to replacement costs. With Sing Core, your door will remain dimensionally stable and won’t warp, regardless of size.

Will your Pivot Door delaminate, warp, bend, or twist?

Is your large door guaranteed?

In most cases, your large pivot door is excluded from warranty. They’re afraid that your large door might fail. Your door won’t fail with Sing Core! We’re backed by our 50-year Pivot Door Guarantee. 

50-year Door Guarantee

Sing Core’s True Flat Team and your favorite millwork can create a custom pivot door! This Pivot Door is guaranteed to last half a century. Not warping, bending, or twisting. 

 

How to Spec a Pivot Door

Best way to spec your large pivot door is to note that it has to have, “Sing Core inside.”

Sing Core works hand in hand with millworks and custom pivot door manufacturers to create the ultimate pivot door. It starts with Sing Core inside. 

Sing Core is a revolutionary pivot door core. Patented and patent-pending technology created by inventor Peter Sing. The core is a reinforced torsion box, creating a solid composite structure. Lightweight Sing Pivot Doors are insulated, sound-deadening, and custom built. 

Get an Estimate

Visit https://singcore.com/pricing-3/get-an-estimate and get an estimate for your next Door! 

See also: Affordable Pivot Door Evolution

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Dallas Innovation Center Ceiling

Sing Core is proud to play a small role in providing materials for the Blue Cross Blue Shield’s C1 Innovation lab in Dallas’ West End.

In the push for creative space that expands the limits of corporate culture and challenges the norm of industrial design, designers are searching for new materials that make their vision a reality. One beautiful example of this trend coming to reality is this space shown below.

Ceiling the Deal with Lightness and Strength

Although Sing Core has wide spread representation in the large door market in high end custom and architectural projects across the country, occasionally innovative professionals will design our product into more creative works. Above you see our light weight, strong, and warp-free patented Sing Core honeycomb technology employed as ceiling that breaks the mold of traditional design.

In this application, our technology provides a solid backing for the stark straight lines that will maintain the crisp lines indefinitely.  While the geometric pattern breaks the mold of lifeless square office spaces and imbues the open design with a creative touch, our lightweight torsion box internal grid structure makes the whole system easy to work with and cheap to hang. Extravagant hardware costs are not longer an issue with our material that is 1/3 the weight of wood yet stronger than steel.

Sing Core in Rehab Buildings

For a few decades now, companies have been rehabilitating old factories and square brick structures for using as cutting edge research and development facilities. Companies find that having a place away from the main corporate office allows for improved creativity and independent thought.

Abandoned buildings provide a unique and cost effective way to attract a younger, hipper work force while maintaining a centrally located position in America’s key cites that the upcoming generation of creative people prefer.

In this environment, Sing Core is a natural choice. Our material itself is a play on natural and commonly found building products transformed in to a form that transcends conventional reality. The strength to weight ratio of our patented core is almost surreal to behold and can be employed in applications that push the boundary of what is possible.

Built for Innovation

These spaces are designed to inspire creativity. These timeless buildings, filled with an air of historical air of conformity, yet wildly out-of-the-box design, present an intriguing paradox that excites the mind to great effect.

Here at Sing Core we are constantly pushing the envelope by iteratively improving our solutions. Although our product is not flashy, our rigidity is the foundation upon which amazing possibilities are built.

Every time that we are able to contribute in our way to the creation of an amazing work such as the C1 Innovation Center, we can be proud of the countless years spent developing and refining our product.

How Can We Help You?

Sing Core is a specialist in the creation of light, strong, warp-free panels of almost any size. If you have a project that can use a panel of particular size, strength, or precision please contact us via our price quote  page and let us see how we can help you today!!

 

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Standard Exterior Door

General Specifications

Standard Sing Core exterior doors are manufactured with patented Sing Core material as the base interior substrate of the door. The Sing Core substrate material is created using a vertical grain natural wood torsion box design while the traditionally empty voids are filled wall to wall with recycled foam. The standard foam material is recycled rigid EPS foam. A 10 inch natural wood lock block is positioned centered at 37 inches for door knob and locking mechanism placement. The core material is wood framed by 1.5 inch natural wood for finishing strength and attaching hardware. The torsion box is completed by adhering an exterior surface material (skin) in your choice of marine grade plywood, fiberglass (FRP) or aluminum. Bonding agent used in adhesion of the entire composite material is formaldehyde-free.

Standard Sing Core Exterior Doors do not include frame.

Every Sing Core manufactured door is unfinished and guaranteed for 10 years for structural integrity.

Detailed Specifications:

Scope: Subject to local building codes, the standard Sing Core door is intended for use in:

  • Single family dwelling interior applications
  • Multifamily dwelling, low-rise professional office, library and low-rise motel interior applications
  • Lighter use industrial building and factory, hotel and retail sales building interior applications

Product Description: 1.75” or 2.25″ side-hinged door panel manufactured by Sing Core with frame.

  • Door component includes paint-grade door panel

Door Panel Materials: Sing Core doors are manufactured using Eco-friendly cold-press process. Composite materials include:

  • Sing Core vertical wood-grain torsion substrate filled with recycled EPS foam (other materials available to match architectural specifications)
  • Core material is framed with wood stiles and rails
  • Facings are your choice of marine grade plywood (1/4 inch), 0.09 fiberglass (FRP) or aluminum (.62).
  • Formaldehyde-free bonding agent is used for adhesion of all components

Interior Blocking: Solid wood implant is inserted for door knob and/lock block hard points.

Delivery: Reasonable care is taken to ensure safe transportation of your Sing Core door from factory to door shop for finishing and pick-up or deliver to your location.

Storage and Protection: Store your Sing Core door in an upright position and allow to acclimate to room temperature following shipment receipt or prior to finishing or installation.

Preparation: Per manufacturer’s specifications, ensure that door frame openings are constructed plumb, true and level prior to installation. Select fasteners of adequate type, number and quality to assure proper function.

Installation: Installer shall be specialized in the installation of the type of work that is associated with the project and will comply with manufacturer’s installation policies and procedures to ensure proper end use.

  • Verify that hinging and latching assemblies operate freely and correctly

Finishing: The Sing Core standard exterior door is unfinished and includes Marine grade plywood is paint grade, fiberglass in pre-primed, and aluminum is untreated. Those charged with the finishing of the standard exterior door must possess proficiency in assuring the exterior seal to prevent potential water damage. Following purchase, the owner of the door is charged to assure the door’s finish is maintained.

Machining: Sing Core doors are easy to work with in the millwork shop for CNC machining or on-site for finishing, sawing, sanding, cutting and fastening. No specialized skills or equipment is necessary, other than standard woodworking tools. Treat Sing Core doors just like you would any other standard door blank.

Strength Performance: Patented Sing Core has an unsurpassed strength as compared to other lightweight substrate materials tested at 660 PSI (based on 2″ x 2″ grids and 3/4″ thick) for superior structural integrity and is resistant to warp, twist and crack when compared to other materials.

Light Weight Performance: Sing Core weighs much less than other traditional building materials, as much as 50% less; or more, as little as 4 lbs. per sq. ft. yet sustainable and true green technology.

Insulation Performance: Standard Sing Core doors feature built-in insulation value with an R3 rating per inch.

Acoustical Performance: Sing Core standard doors have a natural sound-deadening quality for noise control. Standard sound transmission class (STC) is 30*.

Eco-friendly: Sing Core is manufactured using natural wood fibers, no formaldehyde, or toxic chemicals, is created using less energy than any other core material with little or no waste. The structure of Sing Core is 100% renewable (nature-grown) clean fiber and/or recycled material.

Warranty: Sing Core manufactured doors are structurally guaranteed for 10 years under normal conditions.

Basic Sing Door Spec Drawings: Click here

Door Specifications
Door Size
Actual Unit Size
Rough Opening Size
32″ x 80″ 33-3/4″ x 81-1/2″ 34-1/4″ x 82″
34″ x 80″ 35-3/4″ x 81-1/2″ 36-1/4″ x 82″
36″ x 80″ 37-3/4″ x 81-1/2″ 38-1/4″ x 82″

 

See also: Door Technical Information

Appearing regularly in Contemporary Architecture Design

* 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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Sing Structure Grid Specs

Applications -> Building Components -> Doors -> Sing Structure Core Specs

General Specifications

Standard Sing Core composite structure consists of inventor Peter Sing’s reinforced vertical grain torsion box grids at small sizes for increased strength and performance, often compared to honeycomb core, but so much stronger than any other lightweight structure core. This enables door manufacturers to design and build massive doors which have increased dimensional stability.

Click here for tips on How to Create the Right Sing Panel for your specific project.

Every Sing Core manufactured door is unfinished (unless specified otherwise) and is guaranteed for structural integrity for 10 years or more. See details on written guarantee that came with your door that has Sing Core inside.

Detailed Specifications:

Scope: Subject to local building codes, the standard Sing reinforced torsion box composite core is featured inside doors intended for use in:

  • Single family dwelling interior applications
  • Multifamily dwelling, low-rise professional office, library and low-rise motel interior applications
  • Lighter use industrial building and factory, hotel and retail sales building interior applications

Product Description: Patented Sing composite structure core

 

Structure Core Materials: Sing Core composite structure is manufactured using Eco-friendly cold-press process. Composite materials include:

  • Natural vertical wood fiber, with gain orientation vertical (not horizontal)
  • Grid voids are filled with recycled EPS foam (default) or other architecturally specified material
  • Facings to complete the torsion box are wood, or other specified flat building material
  • Formaldehyde-free bonding agent is used for adhesion of all components

Architectural Specifications Substitutes

For information on some of our architectural substitutes click here.

Interior Blocking: Solid wood implants are inserted as lock blocks or anchor points. Also additional stiles (vertical wood implants) or rails (horizontal wood implants) can be positioned at any desired location inside the door prior to the door’s manufacture. (Note: Depending on your expectations, solid wood implants should be supported by at least 12 inches of Sing Core material to maintain true flatness.)

Delivery: Reasonable care is taken to ensure safe transportation of your Sing composite torsion box door core from factory to your location including proper crating to protect the natural beauty of your door during transport.

Storage and Protection: Store any door with Sing Core inside in an upright position and allow to acclimate to room temperature following shipment receipt or prior to finishing or installation.

Preparation: Per manufacturer’s specifications, ensure that door frame openings are constructed plumb, true and level prior to installation. Select fasteners of adequate type, number and quality to assure proper function.

Installation: Installer shall be specialized in the installation of the type of work that is associated with the project and will comply with manufacturer’s installation policies and procedures to ensure proper end use.

  • Verify that hinging and latching assemblies operate freely and correctly

Add-stiles-and-rails-to-your-sing-door-as-anchor-points-drawingFinishing: The finishing of the Sing Core standard door is the responsibility of the client due to the product being delivered in paint-grade quality unless specified otherwise in writing. Any sealing must be in accordance with manufacturer’s specifications to protect against a variety of environmental conditions as necessary.

  • Edge-band edges to encapsulate Sing Core (see T-molding)
  • Seal all 6 surfaces with two coat minimum on operable panel(s)
  • Finishing or re-finishing must be completed following acclimatization and installed within 7 days
  • Avoid finishing after rain (or damp) or during periods of higher than average humidity
  • At least once a year, conduct periodic inspections of coating to ensure no door components are exposed
  • Reseal the surface as necessary

Machining: Sing Core doors are easy to work with in the millwork shop for CNC machining or on-site for finishing, sawing, sanding, cutting and fastening. No specialized skills or equipment is necessary, other than standard woodworking tools. Treat Sing Core doors just like you would any other standard door blank.

Strength Performance: Patented Sing Core has an unsurpassed strength as compared to other lightweight substrate materials tested at 660 PSI (based on 2″ x 2″ grids and 3/4″ thick) for superior structural integrity and is resistant to warp, twist and crack when compared to other materials.

Light Weight Performance: Sing Core weighs much less than other traditional building materials, as much as 50% less; or more, as little as 4 lbs. per sq. ft. yet sustainable and true green technology.

Insulation Performance: Standard Sing Core doors feature built-in insulation value with an R3 (can be upgraded to to R6.5 or more) rating per inch, depending on architect’s specifications.

Acoustical Performance: Sing Core standard doors have a natural sound-deadening quality for noise control. Standard sound transmission class (STC) is 30*. Additional noise control specifications can be met at the behest of the customer or designer and must be noted in advance.

Eco-friendly: Sing Core is manufactured using natural wood fibers, no formaldehyde, or toxic chemicals, is created using less energy than any other core material with little or no waste. The structure of Sing Core is 100% renewable (nature-grown) clean fiber and/or recycled material.

Warranty: Sing Core professional manufactured doors can be structurally guaranteed and warp-free for 50 years under normal conditions.

Basic Sing Door Spec Drawings: Click here

Custom-cut Window/Lite Openings: Lite openings for glass inserts can be custom cut per your specifications (drawings above show examples of standard openings) for glass insertion.

Door Specifications
Door Width
Rough Opening Width
Rough Opening Height 6/8
2/0 (Single) 26″ 82-1/2″
2/4 (Single) 30″ 82-1/2″
2/6 (Single) 32″ 82-1/2″
2/8 (Single) 34″ 82-1/2″
3/0 (Single) 38″ 82-1/2″
4/0 (Double) *50″ 82-1/2″
4/8 (Double) *58″ 82-1/2″
5/0 (Double) *62″ 82-1/2″
5/4 (Double) *66″ 82-1/2″
6/0 (Double) *74″ 82-1/2″

See also: Door Technical Information

Appearing regularly in Contemporary Architecture Design

* 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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Classic Hidden Hallway Door

About Hidden Doors

Hidden doors, or jib doors, are the most particularly demanding for high precision because any misconfiguration or door warp will make an otherwise invisible door stick out like a sore thumb (literally), and if it’s too far out of plumb, it may not operate at all.

Thanks to inventor Peter Sing’s patented and patent-pending hidden door technology, you con create a flawless, high precision invisible hidden door that will operate without fail. other advantage of using Sing’s core within your hidden door include possessing an Eco-friendly door that is fully insulated for sound deadening and climate control, lightweight (one-third or less the weight of other wood based solid core doors), high strength (at 660+ PSI, stronger than steel pound for pound), impact resistant (Sing says, “kick my door, break your leg”), highest precision (Sing Core sports .006-inch tolerances), and here’s the kicker,

50-Year Warp-free Guarantee

The only way in the world to build a sustainable lightweight high strength hidden door that can be guaranteed not to warp, bend, twist, or otherwise fail (including delamination) for 50 years, is to have your door build with Sing Core inside.

Sing Core is known for it’s large, showy doors. But, our lightweight door technology has many varied applications. Whenever style and durability are a factor, Sing Core panels deliver where others cannot.

A Unique Addition to Your Project

Nothing sells a finished product like the little touches. When you think that everything else has been tried, consider adding a hidden door to your project.

Hidden doors allow for additional space utilization in a design while minimizing visual clutter due to door framing and hardware. This gorgeous example, built by one of Sing Core’s clients using our patented lightweight honeycomb technology, oozes refinement and class. At a glance, the door melds in to the hallway molding and leaves the  lines unobstructed.

Our Panels are Your Canvas

An artist cannot paint without a strong canvas, likewise a builder cannot make living art without strong building materials to form their creations.

Sing Core door slabs come with a 50-year warp-free guarantee that demonstrates the underlying stability and quality of our materials. We stand by our ability to create doors that are:

  • Lightweight
  • Sound proof
  • High insulation value
  • Straight
  • Strong
  • and Dependable

When You Client Demands the Best

May companies on the market offer a variety of door cores. We acknowledge that our product is not the right solution on all situations. For doors of usual sizes and applications, or exacting production standards leave little flexibility in pricing to meet budget demands. Where our doors shine is in very large, high tolerance, or very high end applications.

When all that maters is the best possible outcome for your project, then remember Sing Core and our patented and patent pending “honeycomb” door technology cannot be beat.

Smooth, Flush Trim, and Anything You Can Imagine

Flush is just the start of the possibilities when it comes to high end custom doors. With Sing Core almost any possibility to can be realized. Almost any size can be realized using the unique strength and straightness of our honeycomb core. Too thin and too big are not in our vocabulary.

The real question is how big can you imagine? What do you and your clients seek to realize?

A Miraculous Material

Many people are surprised to see how much then can accomplish beyond the norm with Sing Core backing their work. For us strength is really not a problem. Warping can be relegated to a fear of the past.

We would be boosting to say these things if the product didn’t warrant the praise. But in this case we can, in humility, say that what we provide top end millworks, construction companies, and architects pushes the boundary of what is possible.

When you use Sing Core you are in the driver’s seat. Do you want metal skin, solid wood skin, paint, plastic, fiberglass? Almost anything can be realized with less weight and greater strength than even aluminum or other space age door technologies.

What Can We Do For You?

Although we aren’t the right fit for every project, when your design has unique needs remember that Sing Core is there to back you up.

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Sing Sound Isolation Doors

One of the outstanding attributes of Sing Core is its ability to be included in the composition matrix of some of the most advanced sound doors made in the USA. The patented composite construction of Sing Core’s reinforced torsion box core helps to stabilize and further insulate highly effective high-end sound doors for the most critical sound applications.

Due to the sound deadening properties of mass, the heavier the better. Yet an extremely large or heavy door poses many complications for installers and maintenance staff over time. That is, unless your sound proof door has Sing Core inside.

Now, you can enjoy a soundproof door without all the extra weight of a heavy sound door. Laminating heavy panels together to create the most effective sound door can also problematic, unless you’re entrusting your lamination to Sing Core which is fully versed in the complications which might arrive in the process of making a sound proof door.

If you have an acoustical door with a 50-year warranty, there’s a good chance that it was designed and built with Sing Core inside. The sound isolation experts in the industry are engineering and specifying their acoustic door include Sing Core as a vital component of their soundproofing materials battery.

Standard door sizes are available as are very large elephant doors in any configuration necessary for your applications, including hinge doors, sliding doors, barn doors, carriage doors, warehouse doors, industrial doors, even stile and rail doors in any size custom built to your specifications.

Performance of a Sing sound door is consistent throughout the door’s span covering frequencies from 50 Hz to 10,000 Hz.

A smooth plywood slab is ready for any exterior stain, paint, or additional treatment engineered or designed by your architect or design team, and ready to be finished by your millwork or custom sound door manufacturer.

Using Sing Core inside your sound isolation doors is the only way to have create lightweight soundproof hotel doors, soundproof office doors, and soundproof residential doors for those demanding projects.

Sing Core is the only lightweight, high strength door soundproofing material which does not compromise STC ratings and is a key component of how to soundproof a door which is not so incredibly heavy.

Sing architectural sound door slabs are built to your specs and can be fully tested and rated by our local sound door testing facility, is one of the most advanced testing labs in the world.

Of all soundproofing solutions Sing Core’s patented reinforced torsion box core acoustic is and effective underlayment in soundproof exterior acoustic doors whether your soundproofing is engineered for a sound deadening interior door or as an external noise barrier.

Sing Core has found its way into the best vocal booths and home theater soundproofing as specified by top-rated sound engineers.

Besides soundproof doors, Sing Core is also utilized as a soundproofing barrier in wall sound proofing, soundproofing ceilings.

For premium noise control without all that extra weight, have your sound engineer consider putting Sing Core inside your next soundproof door.

You are not limited to traditional standard door sizes, as each Sing sound door blank is a one of a kind piece of art, hand made in the USA.

Lead times are four to eight weeks for Sing sound doors without additional rush charges.