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Architectural Sliding Doors and Walls

JB Duke Hotel Doors Perfect Straight Light Weight Super HIgh StrengthNothing says “professional” like the unique quality of Sing Core’s patented custom architectural sliding doors and walls. When other manufacturers see our product, they wish they could provide the highest quality in terms of lightness, strength, and straightness that we deliver. Unfortunately for them, we must humbly say, our product is the better of the two.

Designed for High Budget Projects

By design, our panels work best for high budget projects that need something exceptional for their project. Our panels comes unfinished and potentially untrimmed, with the custom skin variety of your choice, ready for finishing and hardware.

Sometimes customers ask us, “should I use this panel in high-end 10+ million dollar house projects?” Our answer is yes!

When it comes to architectural doors of any variety, including sliding, pivot, carriage, moveable wall, hinge, or anything else.

Modern Solutions for Sliding Doors with Volume Based Pricing

With commitment to clean design, premium materials, and high quality craftsmanship in every architectural sliding door panel we manufacture to your specification.

Featuring monumental panels, the Sing Core door system allows for stackable or pocketed configurations with a practically unlimited numbers of panels.  With almost unlimited frame material choices, Sing Core samples complement any architectural style helping you meet the design goals and performance criteria of your project.

Sing Core offers our clients a range of options and materials for every type of high volume, medium volume, or low volume project. Along with our excellent customer service, we can guarantee your projects success.

Custom Size Patio Doors

We make doors of any size based on your specification. Architects, millworks, and contractors of all varieties can benefit from our flexible manufacturing methodology that excels where others fail and exceeds where others cannot!

Successful Client Relationships Begin with Mutual Satisfaction

In business, just like life, both parties must be happy after the interaction. That is why Sing Core operates under the philosophy of fair exchange. This is what we call “fair.”

To make sure you are left smiling after we are done, we offer an unprecedented and unparalleled 50-year structural guarantee on every professional level panel that we make. That way you and your clients have no fears of the future with our product. Should the unthinkable happen, we will replace your panel no questions asked once proved unworkable.

Find the Right Fit For Your Next Project

Sing Core knows that high end products required a wide variety of materials to be successful, and we have you covered. No matter whether you need:

  • Wood Stave: oak, alder, cedar, mahogany, teak, pine, fir, or anything else you can imagine
  • Wood Veneer: oak, alder, cedar, mahogany, teak, pine, fir, or anything else you can imagine
  • Metal: Cold Rolled Steel, Hot Rolled Steel, Aluminum, Copper, or anything else you can imagine
  • Formica: any color, glossy, matte, marker board, chalk board, or other

Find the Sing Core Panel that Best Meets Your Needs

Ordering with Sing Core is simple: just provide us with length, width, thickness, skin material, blocking requirements for you door, shipping destination, project budget, project timeline, and contact information. Then we get back to you quickly with a fair price on custom panels to meet you specifications. See our new C Series line of Affordable Barn Door and Sliding Closet Doors.

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Hinged Door Gallery Pictures Photos

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Pocket Door

Pocket doors have become an integral part of modern architectural design.  Despite the many advantages of pocket doors, they do present unique challenges in both the manufacturing and the installation process.

pair of 14 ft. x 3.5 ft. x 2.5 in. warp-free sliding pocket doors

About Pocket Doors

Pocket doors are desirable as they are invisible in the opened position as the pocket sliding doors are hidden away in cavities within the walls in one, or two opposing, wall(s). Pocket doors serve as a retractable room divider, functioning as an elegant and effective method to separate one large space or two adjoining spaces, while the sliding door divider(s) disappear(s) into the wall.

Proceed with caution, as pocket doors can be hugely problematic if they move according to changes in the surrounding environment. A warped pocket door will damage the finish as it rubs against neighboring surfaces and if it bends or cups too much can get lodged inside the wall, and the bigger the pocket door, the greater likelihood of warping.

There are many reasons to have your pocket doors made with Sing Core but the number 1 reason is to stop worrying about warped pocket doors once and for all by specifying

Sing Core Inside Your Pocket Door

Thanks to inventor Peter Sing’s patented and patent-pending large pocket door technologies, you can have an Eco-friendly pocket door that is lightweight, high strength, fully insulated for sound deadening and climate control, covered by Sing’s

50 Year Warp-free and Structure Guarantee

There is no other way to build a high precision (Sing Core tolerance is +/- .006 in.) sustainable pocket door that can remain straight and true, spanning the test of time.

The Best Pocket Doors

Sing Core has become known for making some of the largest, most impressive sliding doors on the market.  Pocket doors are sliding doors that slide into a pocket in the wall.  Certain customers have come to know Sing Core, not only for our sliding doors, but also for our magnificent pocket doors.  Introducing the best pocket doors!

Pocket Door Challenges

The concept of pocket doors seems simple very simple.  They are similar to sliding doors in that they slide on tracks and typically use rollers to open and close.  The big difference is that they slide into a pocket that has fixed dimensions inside the wall.  If the door warps or skews, the door cease to function.  You will not be able to open or close the door because warping will change the dimensions of the door.

 

Warp Free Pocket Door

Over decades, we have developed our patented and patent pending materials that allow for super strong, light weight, warp free door construction.  Warping and skewing present significant problems for pocket doors, because pocket doors must slide into a fixed space inside the wall.  Any deviation from specifications will prevent the door from fitting into the space.  When this happens, your door will cease to function.  You will need to buy a new door, change out your hardware that may bend or break as a result of door malfunction.  In some cases, you also need to rebuild your door frame or your walls when they are ruined from doors being opened and closed.

But we have solved all of the problems associated with large pocket doors and large sliding doors.  When you use Sing Core products, you not only get a door that exceeds AWI standards in terms of warpage, you also get a door that’s guaranteed against warping for 50 years.  Because of our special design methods, you will get a door that ensures proper functionality for decades.

Large Pocket Doors

The larger the door the bigger the challenge.  Large pocket doors are more susceptible to warping.  In order to function properly, they must be specially designed to resist warping.  Larger doors must be specially constructed so that they are warp free on installation, as well as, over time.

 

Ultra High Strength – A large pocket door must be exceptionally strong to stand up to the most rigorous use.  At Sing Core, we have revolutionized door strength with Peter Sing’s patented and patent pending technology that allows us to build doors that are very high strength, tested independently at over 660 PSI.

 

Super Light Weight – Up to 90% lighter than solid wood doors.  Sing Core’s specially engineered core uses Peter Sing’s revolutionary design to bring a solid door strength to doors that allows for super light weight performance.

 

Straight/Warp Free – Specially designed stiffeners built into our doors make sure your doors are warp free over the long haul for better performance and function.

 

Structurally Stable – With our groundbreaking process, we can make doors that are built exactly to your specifications, and will not skew or shift over time.  That way, you have a door that functions worry free for decades.

 

Eco-friendly – We support sustainability by using renewable, eco-friendly materials, so our products are better on the environment.

 

Guaranteed – When it comes to guarantees, no company on the market can do better.  Our Sing Core Professional Panels are used for doors and other high end applications where stability and precision are of the utmost importance.  All of our Sing Core Professional panels come with a whopping 50 Year Guarantee against warping, cracking, breaking, and skewing.  Name one other company who can do this.  Most companies don’t even offer a one year guarantee, but we can do this because our products have such a strong track record of performance.

 

No one can make panels as large, yet warp free like we can!  You have our guarantee on that.

 

Proudly Made in America

All of our products are 100% made in the USA.  We take pride in supporting our country.  That’s why you won’t find any products that aren’t made in America here.  We also use high quality inputs that are sourced from local suppliers.

Door Skins

Our door system allows you to specify almost any skin for your doors.  We specialize in high quality wood and metal doors.  We have several options depending on your budget.  Our paint grade ply option is our most economical option.  Next is our hardwood veneer option.  Mahogany, oak, walnut, and alder are popular.  We also use 1/8″ wood stave on our highest end option, which gives you a solid wood appearance, but has our specially engineered core to maintain the light weight feature our doors are famous for.  We also make metal doors.  In our metal doors category, we specialize in cold rolled steel, but we also have a very popular aluminum option.

any door skin hard wood metal aluminum

 

Sing Core Certified Professional

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The Best Large Doors in the World

 

 

Built to last centuries, guaranteed for 50 years

 

 

 

 

Sing Core helps the best door companies, architects, and millworks build the best doors.  Doors with Sing Core inside are built to last centuries, and they are guaranteed for 50 years.

We are proud to provide one of the longest lists of happy customers in the world.  All of those customers now possess the most prestigious large size doors, which are guaranteed not to warp, bend, twist, or otherwise fail for 50 years.

14' Tall Oak Doors in One World Trade Center

Reaching for the stars from the tallest doorway heights of the tallest building in the USA

The most successful, biggest, best, and most well-known door companies and millworks in America rely on Sing Core to provide them with the lightweight warp-free door cores that can support extreme over-sized doors, accommodate added materials (for sound proofing or fire rating), and offer strength ratings which are, pound for pound, stronger than steel.

Sing Core could not make such claims, unless we backed up our words with the highest performance results in the industry.

 

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You can rest assured that your door with Sing Core inside will forever be the best investment you will make, with many years of sustained performance and sustainability.

Eco-friendly Sing Core is fully insulated for sound deadening and climate control.

 

 

 

 

 

 

 

The best doors in the world have Sing Core inside

 

 

 

 

 

 

When you’re looking at an extravagant large pivot door, sliding door, pocket door, or an elegant French door that towers over your head, remember that we don’t build doors.

 

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We get calls everyday from homeowners wanting to add Sing Doors to their own homes, magnificent over-sized, large doors like the ones they see on our Website or in the most luxurious, over the top, locations all over the world, where Sing Core doors have been finished and installed. We do not do this, because we do not finish or install the doors. Only the best door companies in the world do this. You need to contact your favorite door company.

What we do is to supply the best millworks and door manufacturers, and the most prestigious architects in the United States with our handcrafted warp-free custom door blanks, ready to finish and install.  Their expert finishing touches are a major part of why doors with Sing Core Inside look so beautiful.  Without their expertise, Sing Core looks just like plain wood panel.

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Homeowners who would like Sing Core doors in their own homes can contact an architect or millwork to order, finish, and install the doors for them.

 

 

 

 

 

 

What Makes Sing Core Doors Different?

 

 

 

 

 

We have the best patented and patent-pending methods to create the largest, most lightweight, most insulated Eco-friendly most doors that can be guaranteed not to warp, bend, twist, or otherwise fail for 50 years.  Sing Core uses the only door manufacturing methods which can deliver these extreme results in the largest, most high precision modern doors featuring any contemporary material, because conventional large wood grain doors are prone to warping and a host of other problems, including excess weight.

 

 

 

 

 

 

How Do You Build a Sing Door?

 

 

 

 

 

 

If you’re a custom door manufacturer, you start with a Sing Core door blank and build your large pivot door, large sliding door, large pocket door, or huge French door just like you would any other door that you build. Having Sing Core warp-free door substrate inside your door makes all the difference in the world.

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Our modular door system is by far the best in the world!

 

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Before finishing

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We aren’t able to show the final door because of copyright information.

 

One of a Kind Sing Doors

 

 

 

 

 

Keep in mind that no two doors with Sing Core inside are exactly the same (except in the case of large bulk door orders).

Every door with Sing Core inside features a uniquely engineered base door material which is manufactured to exacting standards taking into account all the details of the application associated with each door.

 

 

 

 

 

Attention to Detail

 

 

 

 

 

Attention to detail is the method of ensuring that each Sing Door can be guaranteed for flawless performance and longevity by taking into account where the door will reside when it is installed. What will the climate conditions be? Will it be installed inside, outdoors, or will it be a front door with one side exposed to the elements and the other to the structure’s interior?

 

Will your large exterior door be facing North, South, East, or West? What materials will be used on the exterior of the door? Will the surface material need to match other doors featured in the project?

Large over-sized wooden doors present their own set of challenges because every different species of wood grain has its own propensity to shift with changes environmental changes, like temperature and humidity.  Sing Core inside as well as the stiffening and anti-warp configuration in the door substrate will have to be uniquely matched to any difference in door size.

 

 

 

 

 

 

Sing Core is not a one size fits all solution

 

 

 

 

 

 

That’s why you find Sing Doors featured inside the most expensive homes, commercial, and industrial locations in the United States and around the world.

 

It’s no easy job to make a warp-free large door, especially if it is door of enormous proportion which needs to remain dimensionally stable and warp-free over time, but as the most prestigious millworks and custom door manufacturers already know, Sing Core is the only way these results can be achieved.

 

 

 

 

 

 

Sing Core Solved the Problem

 

 

 

 

 

 

Sing Core has solved all of the problems associated with manufacturing large over-sized doors of all kinds.  Door designers and engineers no longer have to deal with the problems of weight to strength ratios, or having to worry about how to transport, handle, or install large heavy doors.

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Doors with Sing Core inside are not only lighter in weight than other solid core doors but they are high precision (hosting .006 inch tolerances) and stronger than steel (660 PSI or more) pound for pound.

 

 

 

 

 

 

How Can You Get a Sing Door?

 

 

 

 

 

 

All you have to do is to go to your favorite custom door manufacturer or local millwork and tell them what kind of door you want being sure to tell them you want,

 

 

 

 

 

 

 

“Sing Core inside your door.”

 

 

 

 

 

 

 

We will work with them hand-in-hand to design the perfect door to your specifications.

 

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With Sing Core
You Can Have Your
Dream Door

 

 

 

 

 

Make your door dreams come true with Sing Core inside your door.

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Skin Types Plywood Paintgrade And Other

Plywood door skin is one of our main specialties.

Aside from our higher end soft or hard wood veneer and 1/8″ inch solid wood stave doors, we also offer a full range of soft wood and hard wood ply wood skins for stain or paint.  In our most economical range of products, we offer our paint grade, MDF, MDO, Masonite, and Formica alternatives for more restrictive projects.

 

Soft Wood Plywood – Paint Grade Option

Ply wood is at the core of your most economical, yet stable substrates.  Ply offers you the strength and stability you need to achieve the style and function you need from the most rigorously used doors you can imagine.  

 Standard Plywood Skin

 

AB Plywood Skin

AB-Plywood-Trimmed-Skin

 

Beautiful Marine Plywood Skin

 

Hard Wood Plywood

Enjoy real hardwood grain when you’re on a tight budget.

Hard Wood skins create a pleasant environment that never goes out of fashion and offers so many style choices, so you can achieve the precise look to convey your brand and image.  Whether it’s the upper echelon of the high end residential market or the most reputable segment of the commercial industry, the hard wood look might be your absolute best choice for your current applications.

Walnut Plywood Skin

Walnut Plywood Skin

 

Stunning White Oak Skin

 

Beautiful Mahogany Hard Wood Skin

Plywood Panel Mahogany Hard Wood Beautiful Skin

 

Incredible Maple Hard Wood Skin

 

Hemlock Wood Skin

 

Alder Wood Skin

 

Magnificent Mahogany Hard Wood Skin

Magnificent White Oak Hard Wood Skin

 

MDO and MDF

Many customers choose MDO or MDF because it has good warp-free capability and good resistance to water.  MDF is popular for indoor use, because it is very smooth for priming and painting applying your own veneers.

Medium Density Overlay (MDO)

MDO Plywood Skin

Medium Density Fiberboard (MDF)

MDO Plywood Skin

 

HPL, Formica, Masonite Option

We offer a wide variety of Formica, Masonite, or other types of HPL (High Pressure Laminate) textures and finishes.  We can apply any kind of HPL skin, and many come in natural wood grain designs which are indistinguishable from the real thing but almost indestructible.  This is why you find HPL is high traffic industrial and medical environments, resistant to damage and easy to clean. Just give us the product number and manufacturer.  We can apply it!

Dark Stone Finish Formica

Dark Stone Formica Finish

 

Rich Red Wood Finish Formica

Rich Red Wood Pattern Formica

 

Blond Wood Finish Formica

Wood-Pattern-Formica-Skin

 

Beautiful Dark Granite Formica Finish

Stone-Finish-Formica-HPL-Sk

 

 FRP Fiberglass

FRP Fiberglass is another very popular option.  This beautiful, durable skin option is found in some of the highest end applications, because it exudes quality and wealth.

 

Other Skin Options:

We can apply any skin.  If there is a skin you need that you don’t see on our website, please ask.  We can apply any skin.  Your panels are only limited by your imagination.

 

In our mid level category, we offer beautiful, real hardwood veneer with solid hardwood edges.  Solid hard wood edges are an additional option.

 

In our highest end price point, we offer full on wood stave skin doors, made with the highest quality hard and soft wood 1/8″ real hardwood stave skin.  Click here to see some of the most beautiful doors in the world.

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WOOD VENEER DOORS

Premium Veneer Doors with a 50-Year Warp-Free Guarantee

Sing Core veneer doors give you the authentic beauty of real hot press wood veneer doors with unmatched performance. Whether you need a grand entry door, pivot door, or architectural interior feature, our lightweight, high-strength panels deliver stability that ordinary veneer doors can’t match. Every Sing Core veneer door is backed by our 50-year structural and warp-free guarantee.

Why Choose Sing Core Veneer Doors?

  • Warp-Free for Life – Our patented core prevents twisting, bowing, or cupping, even in oversized formats.

  • Lightweight Strength – Stronger than steel pound for pound, but a fraction of the weight of solid wood.

  • Authentic Beauty – Compatible with nearly any veneer species, including walnut, oak, mahogany, maple, cherry, and exotic woods.

  • Flexible Options – Order ready-to-veneer substrates or finished veneer panels through our hot-press partners.

  • Trusted Nationwide – Specified for major architectural projects, including One World Trade Center.

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

 

WOOD VENEER DOOR

How Sing Core Veneer Doors Are Built

  1. Engineered Core
    Our torsion-box honeycomb structure creates a perfectly flat, dimensionally stable foundation.

  2. Solid Wood Edges
    Doors can be finished with matching edges, rails, or stiles for seamless joinery.

  3. Veneer Application

    • Local Veneering (recommended): We ship substrates; your local hot-press professional applies veneer.

    • Factory Veneering: We can arrange hot-press veneer application through trusted partners.

  4. Finishing
    Panels can be sanded, stained, painted, or clear-coated. Proper finishing ensures lasting beauty and stability.

 

 

Wood Veneer Doors

 

 

 

 

 

 

WOOD VENEER DOORS

WOOD VENEER DOORS by SING CORE

 

Frequently Asked Questions

What is a veneer door?
A veneer door uses thin slices of real wood bonded to a stable core, creating the look of solid wood with reduced cost and weight.

Why use Sing Core inside veneer doors?
Traditional veneer doors are prone to warping. Our patented substrate ensures long-term flatness and stability, even at extreme sizes.

Do you apply the veneer?
In most cases, we supply warp-free door blanks, and veneer is applied by local hot-press professionals. We can also arrange veneering on request.

Which veneer species are available?
Nearly any — from domestic options like oak, walnut, maple, and cherry, to exotic imports.

Are Sing Core veneer doors guaranteed?
Yes. All professional veneer doors made with Sing Core include a 50-year warp-free guarantee.

 

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.

 

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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Sing Stile and Rail Doors

The Sing-style approach to stile and rail doors is a horse of a different color amidst the age-old door industry. Sing stile and rail doors are lighter in weight and stronger than steel yet made of nearly any flat building material available, not matter how they’re built.

Sing Stile and Rail Look

Our most sought-after stile and rail manufacturing method produces a stile-and-rail-looking door from a solid composite Sing door slab which feature alternating wood grain orientations on the door surface to emulate the look and feel of a stile and rail door without any weak spots.

The resulting Sing Stile and rail door made of a solid door panel is the strongest, lightweight, most insulated, Eco-friendly door proudly made in the USA.

Sing Stile and Rail Construction

Even among the most tried and true stile and rail door manufacturers, they know that the only way to build a large stile and rail door which can be guaranteed not to warp for 50 years, is with Sing Core inside.

Rather than build a stile and rail looking surface and applying it to a solid slab of Sing Core, traditional stile and rail manufacturers prefer to use stile and rail components with Sing Core inside.

Basically, this means that all the stile and rail components are manufactured by Sing Core in building material formats which are very similar to our post and beam configurations, and/or furniture panels. These are assembled by your favorite stile and rail door builder just as they would any traditional wood stile and rail door components.

Sing Stile and Rail Advancements

You might be surprised what benefits can be enjoyed by custom door makers who construct their doors using patented Sing products. This new, revolutionary door building material is

Lightweight Stile and Rail Doors

Weighing in at a fraction of other solid core doors, Sing stile and rail doors can be very lightweight, even if they are very big doors, without threatening the longevity of the door’s performance over time.

High Strength Stile and Rail Doors

Stile and rail doors made of Sing Core are incredibly strong. Rated at 660 PSI, Sing Core is stronger than steel pound for pound, thanks to Peter Sing’s patented solid composite torsion box core substrate, incredible unsupported spans are possible, enabling doors with Sing Core inside to outperform any other lightweight door.

50 Year Stile and Rail Guarantee

Professional grade Sing Core has such a high precision tolerance (+/- .006 in.) and withstands just about any variance in conditions across the board, that these are the only door which can be guaranteed not to warp, bend, twist, or otherwise fail for 50 years, including full structure warranty.

Eco-friendly Sing Core

Using Sing Core is the Eco-friendliest way to build a sustainable door, which is made with a smart combination of minimal natural and recycled material combined to create this revolutionary door core material which is the lightest weight and highest strength way to build doors of any kind.