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High-end Veneer Doors

Sing Core specializes in increasing the performance, durability, and customer satisfaction in high-end veneer work in custom veneer doors of any size which can be guaranteed to remain warp-free for 50 years, including full structure warranty. No other method of manufacturing a large high-performance veneer door can achieve these results.

It all starts deep within the structure of any veneer door with Sing Core inside. Sing Core is the patented brainchild of inventor Peter Sing who conceived of the structure core which revolutionized the way doors were made.

Sing’s invention is basically a vertical grain torsion box core with small grid structure where the grid voids, which are usually left open in traditional torsion box, are filled with rigid foam insulation.

This composite base material is pressed between to stress skins to create Sing’s lightweight high strength high-end veneer door core.

The biggest and best door companies, millworks, and custom door manufacturers love it, and you will find them using Sing Core inside all their high-end custom large veneer doors. And that’s why you’ll find them at the top of the tallest building in the United States of America, World Trade Center 1‘s Freedom Tower.

16' Tall Oak Doors in One World Trade Center

Telegraphing and Crossbanding

The most environmentally conscious way to create a veneer door is with a thin veneer material, such as 0.020-inch veneer. The only problem with this thin veneer is telegraphing.

It is normal to crossband veneer, which basically doubles the price of the veneer, to prevent telegraphing.

Not necessary with Sing’s super-smooth veneer door blanks. He uses his patented veneer door technology to create an extremely smooth surface to lay veneer on flawlessly by using a thin later of MDF to accommodate the lamination of a thin veneer.

Problem solved.

Large Oversized Veneer Doors

When architects spec an architectural veneer door, if it is a very large door (anything over 8 ft tall or 4 ft wide) they are far better off going with a thin wood stave surface. Wood stave consists of wood planks cut into thicknesses of 1/8 to 1/4 -inch thickness. Then this solid wood is applied to Sing’s door blanks.

Veneer is normally limited in available lengths, whereas planks of specific wood species are generally available in longer lengths. This can accommodate the long length necessary for a vertical grain veneer door design.

Plus, if it’s done right, your high-precision large wood stave door with Sing’s core inside looks just like a solid wood door. Only it weighs far less than any other solid core door, and can be guaranteed not to warp, bend, twist, cup, or otherwise fail for 50 years.

And no other door can come backed with such an impressive guarantee.

Even though Sing’s doors are desired by nearly everyone, to have such a door may be cost-prohibitive for most. It is more common to find high-end veneer doors with Sing Core inside in the most expensive homes in the USA. You may find them used in scientific research, and anywhere in the world, from beneath the sea (US Navy) to outer space (NASA) and anywhere in between.

Once you’ve experienced a high-end veneer door of such magnitude, you will agree with the professionals who insist on using Sing’s patented solutions, that,

“It’s the only way to do it.”

Sing Core is the only way to build a big veneer door that can be guaranteed for 50 years. The only way.

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How to Make the Best High-end Veneer Doors

If you approach the most prestigious millworks in the world and ask them how to make the best high-end veneer doors in the world, you are likely to receive a response which references Peter Sing’s patented and patent-pending veneer door technologies and his Master Quality Door Veneer Surfaces.

9 ft Tall Oversized Exterior Walnut Veneer Door 50 yr Guarantee

Wood veneer doors are growing in popularity due to the design features which are available in matching grain orientation on the faces of the door. The most popular orientation is called “book match” which orients leaves of veneer opened alongside each other in alternating pairs, like opening a book, where the left leaf mirrors the leaf on the right.

Book matched veneer doors are followed by “slip match” veneer doors, where the grain orientation of the leaves all face the same direction alongside one another.

There are other types of veneer matching which includes “end match,” where veneer leaves are mirrored end to end, “reverse slip match” which alternates veneer strips flipped end to end, which greatly reduces any mirroring effect, producing a more natural result. “Random match,” which shuffles all the pieces and creates a more unique succession of veneers placed side by side.

Then, there is “blueprint” which is sequential veneer from a single source to cover an entire area. Complete rooms are the most impressive when they are blueprint veneered. Some jobs include matching blueprint door skins as well. Proceed with caution, making sure there is enough source material to complete the job, and there is no room for mistakes.

Beyond these veneer matching options; special matches can be made to create a desired artistic result for high-end architectural veneer doors.

These matching capabilities are unique to veneer because veneer is sliced so thin that there is grain duplication which can be matched or mismatched according to an artist’s or designer’s vision.

High-end Large Alt-matched Walnut Wood Veneer Door

Veneer Door Problems

When tasked with bringing a veneer door to life, the production team can run into problems associated with building veneer door as specified while achieving high precision high-end results which the most demanding exclusive door clients find highly desired and valuable.

1. Perfectly Smooth Veneer Problem

High end veneer doors need to be perfectly smooth. Because the veneer skins are so thin, you will notice “telegraphing” on the skin surface. The term telegraphing refers to essentially the bleeding-through of any of the under-laying surface, which will impact the viewable surface area of the veneer.

If you apply veneer directly to a plywood surface, for instance, in the right light, you will be able to see the terrain of the plywood through the thin veneer.

In large doors, it can be extremely difficult to find a large enough piece of smooth underlayment material, so if there are seams in the material under the veneer, this would also telegraph through to the surface.

One way to achieve a perfectly smooth surface is to use LVL (which is commonly used by most standard door manufacturers underneath wood veneers) or MDF which are smooth but heavy, and both are limited in size availability. So, if your high-end veneer door is oversized (over 4 x 8 or 5 x 10) it can be impossible to find a single seamless product.

2. High Precision Veneer Problem

High precision is a moving target when approaching the design and production of a veneer door. The surface material may be elegantly fashioned, but if the product which the door is made out of has a tendency to move, then you could be in trouble when the door warps, causing inconvenience and potentially expensive regular maintenance and repairs in the field over time.

Due to the nature of standard door building technologies, the AIA allows for ¼” variances for a 7 ft. span of a door. Door manufacturers and door hardware manufacturers allow for these variances in mounting and hardware. If a door exceeds movement over ¼” along any 7 ft. span, the result is a warped door, which can easily be compromised or fail altogether.

White Oak Veneer Pivot Door 50 Yr Guarantee

Veneer Door Solutions

Thanks to Peter Sing’s True Flat Team, you can have your high-end veneer door problems solved in a way that increases your credibility as you deliver the highest results imaginable with your most particular high-end clients.

1. Perfectly Smooth Veneer Solution

Sing’s True Flat team works hand in hand with your favorite door manufacturer, millwork, or custom door manufacturer to provide a perfectly flat, smooth surface for applying your favorite veneer to.

For years, Sing’s factory located in the pristine pacific Northwest in Washington State, has been providing the biggest and best door manufacturers in the world with large smooth surfaces for applying veneers for wood doors. Sometimes Sing’s factory applies the veneers, and in other cases Sing only provides the substrate in the form of door blanks to which the door companies apply their own veneers to.

Seamless technology. Thanks to Sing’s patented veneer door core, his factory is able to provide a perfectly flat surface hosting undetectable seam(s). While seams may be unavoidable due to the large size or a particular door, Sing has the patented technology to create an unfinished door blank veneer substrate that will not move, period.

Once the substrate is prefinished and primed, seams are undetectable. While this may be of concern for other veneer door substrates, such as LVL or MDF, this is not a problem for becoming detectable later, because Sing’s veneer door substrates are built not to move, at all.

2. High Precision Veneer Solution

Sing’s patented veneer doors core substrate is built to the highest precision standards (+/- .006 in. tolerances) which means a lot to those special clients who have the highest expectations (like military, science, technology, and aerospace industries). Why not deliver this same high level of precision to your clients who deserve the best?

In fact, Sing’s veneer door blanks, whether they are pre-skinned with wood veneer or veneered by your favorite door building professional, are guaranteed not to warp, bend, twist, cup, or otherwise fail for 50 years.

Huge Maple Veneer Pivot Door 99 x 87 x 1.75 Looks Like Solid Wood

Warp-free Maple Veneer Pivot Door 99 x 87 x 1.75

50-Year Warp-Free Guarantee

Sing’s veneer door blank core substrates are such a massive improvement to previous veneer door building technologies he builds his veneer door substrates to last for centuries, but guarantees each one to 50 years of fail free operation, including warpage, and full structure warranty, including veneer lamination, if his company provides the veneer lamination.

“No other company could do it!”

… is what the biggest door manufacturers in the world say, and that’s why their doors, at least their custom big veneer doors have Sing Core inside. Just like the tallest doors in the tallest building in the United States of America at One World Trade Center, your doors could reach new heights in veneer door manufacturing backed by the only 50-year Non-warp and Structure Guarantee.

How Can I Get a Sing Veneer Door?

Admittedly, says Sing, “We don’t build doors,” as they only provide the best materials to the door companies, millworks, and high-end custom door manufacturers to build the best doors. So, if you want a Sing veneer door, all you have to do is to contact your favorite door manufacturer and tell them you want, “Sing Core inside,” your veneer door.

Then Sing and his True Flat Team will work in concert with your people to provide you with the best veneer door in the world, guaranteed for 50 years.

See also: The Secret Disclosure of Non-warping vs. Veneers Revealed

 

Veneer Door Photos

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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