No Comments

Why We Trust Sing Core

You might ask why the biggest and best door manufacturers, millworks, and architects trust Sing Core to help them deliver the best large doors in the world to their most discriminating clientele? I know we do. So, here’s the answer:

We Trust Sing Core to help us deliver:

1. The Best Solid Wood Stave Large Doors
2. The Best Large Veneer Doors
3. The Best Big Fiberglass and Laminate Doors
4. The Best Large Paint Grade Doors
5. The Best Large Aluminum Doors
6. The Best Large MDF Doors

They also enjoy these incredible features:

1. Lightweight
One-third or less the weight of other doors

2. High strength
Stronger than steel pound-for-pound

3. Fully Insulated
For sound-deadening and climate control

Did someone say "High Precision?" This is a 16th inch groove in an 8th inch skin.

Did someone say “High Precision?” This is a 16th inch groove in an 8th inch skin.

4. High Precision
+/- .006 in. tolerance for precise projects, like this 16th inch groove in 8th inch skin (photo above)

5. True Flat Team
For specialized anti-warp and advisement

6. 50-Year Warp-free Guarantee
Covers warp and full structural (including lamination)

This is no accident. Our best customers know that the only way they can provide the best big doors to their customers in to have Sing Core Inside.

Now, not everyone in the world wants to have the ultimate best big door in the world, but if you do, you might want it to have Inventor Peter Sing’s patented Sing Core inside, so you can enjoy years of worry-free enjoyment from the only door that is covered by Sing’s personal

50-year Warp-free Guarantee

You have never heard of such a guarantee on big doors (especially big wood doors) before because before the invention of Sing Core such a thing was impossible.

And our best clients? They say,

“There is no other way to do it.”

They trust Sing Core because to date, they have not had one claim or return, and you won’t either, if your door has Sing Core inside.

For years, Sing Core has been the trusted resource for the biggest and best large door projects, offering patented and patent-pending solutions that are solid as a rock, yet very light, and stronger than steel pound for pound. Inventor Peter Sing backs his high-end solutions with his 50-year fail-free guarantee, which can be found in

The best and biggest bold, beautiful doors with Sing’s core inside do not fail. Architects and designers trust Sing Core to deliver the best doors for their projects, especially those extremely prestigious structures and applications.

What do they trust Sing Core for?

High strength garage door, finished by Artistic Doors and Windows. When building a specialty door like this, you want it to last.

The Best Solid Wood Stave Large Doors

Solid wood stave presents the biggest problem for large doors due to the natural tendency for a thick piece of wood to respond to its environment by moving. This is not too bad for normal-sized doors, but once you get over 8 ft. tall, you start finding trouble everywhere you look, unless your solid wood stave surfaced door has patented Sing Core inside. Then, it will not move.

Some wood species are more prone to warp than others, so Sing’s True Flat Team goes to work integrating the interior design of the wood stave door with additional anti-warp tech inside the door to compensate for stronger wood grains.

Other large wood door manufacturers offer a one year non-warp warranty, while patented Sing Core comes backed with a full 50 year non-warp and structure warranty.

The Best Large Veneer Doors

When it comes to thin veneers (which can be paper-thin) we have trusted artisans do this work, because we believe that this level of expertise requires that extra finesse to achieve the desired results. Our doing the veneer-piece is actually quite rare because the bulk of our veneer door responsibilities is supplying the many millworks and door companies with the warp-free high precision core for them to apply their own veneers.

This type of work is so sensitive that we only trust the people who are highly specialized in veneering (and that is all they do), so they are quite expensive. We do not want to compete with our own clients. We only use the best veneer craftsmen to work on our clients’ doors. They source the best veneers available in the USA via their suppliers.

If you have a millwork near you that specializes in hot press veneer, we can work with them, if you trust them. Most of our veneer substrates are delivered to millworks who are qualified to to this type of work. Let the experts do the high end jobs.


The Best Big Fiberglass and Laminate Doors

Whether you are looking for an oversized fiberglass door, FRP door, Formica door, Masonite door, Wilsonart door, or HPL door, Sing Core has what it takes to keep your door straight and true when it’s most important to you. The sky’s the limit for your creativity when using these incredible source materials that come in a huge array of colors and designs. And with Sing Core inside, you never have to worry how big your project is.

Patented and patent pending Sing Core has the strongest most lightweight structure for any challenging skins to build all types of doors. Sing Core owns the largest press to take on any otherwise too complicated to consider large door task.

The Best Large Paint Grade Doors

What do you do when you are remodeling your hotel and you need 700 full length floor to ceiling doors that will not warp in a snap? Of course, you call on Sing Core who can turn around an order, like this, in 72 hours. Sing Core ships them to your finishing site, where you have them prepped and painted, and you’re good to go. 700 big worry-free paint grade doors in 72 hours. Not bad. When do you want yours?

Sing core door panels are made of the strongest, lightweight Sing Core with skin made of 1/8 inch MDF and 1/4 inch plywood as skins to provide the most smooth and structurally sound double-layer skins which provide the most lightweight, stable, structure strength, and smooth surface for painting high end doors.

Bulk Orders get priority handling and save more per door than any other method.


The Best Large Aluminum Doors

Architects and designers trust Sing Core’s ability to match their warp-free core with the best metal fabrication techniques for the perfect metal doors. While huge Aluminum doors with Sing Core inside are our most in-demand of all big metal doors, Cold Rolled Steel, Hot Rolled Steel, Galvanized Steel, and Stainless-Steel doors are not far behind.

The Best Large MDF Doors

For so long, MDF has been a difficult material to work with because it is so heavy and not very stable, but engineers and high-tech artisans love it because it is so supremely smooth. This attracts and commands the attention of the most creative artisans in search of the perfect large door canvas. Can be used for 6 panel door, or any other kind of door including French doors with glass cutouts. Sing’s core makes these doors much more manageable by greatly reducing the weight, while increasing dimensional stability, even on enormous doors, and these take advantage of Sing Core’s +/- .006 tolerances.

More than 60% of our big MDF door substrates ship directly to millworks and hot pressers who do their own veneer. Our MDF is so smooth, you can do high precision veneer without having to crossband. Other MDF doors are double to three times heavier or more so with much less structural integrity.

Sing Core MDF doors are the strongest, lightweight and high strength doors in the door industry. We are able to manufacture any type of style, or custom designed door with or without light openings. Even 6 panel doors at a low cost if in large quantities. This service is designed to work with door companies or or mill works that are able to take our door panel and add molding if necessary, expertly finish, and install hardware.

Working with our team, you will be able to build the best door in the USA.

If you are considering sourcing the highest precision, strong, lightweight, non-warp and nearly unlimited variety of design possibilities.

Other Popular Large Door Types

When it comes to architectural doors, you never know what is going to slide across the design table next, but Sing’s True Flat Team is there, ready and waiting, for the next challenge. Some of our most interesting doors that have come up lately include huge Stone Veneer doors, Butcher Block doors, Cement Board doors, Specialty Hardwood doors, even Concrete, and Ceramic doors.

If you can dream of it, Sing Core can help bring your huge door vision to life, guaranteed.

If you buy a door of any size and it is made of Sing Core and any other exterior skin, the Sing Core True Flat Team and the artisans who work in concert with the team to present the recipients with a warp-free large door that will meet or exceed AWI specifications, fully backed by Sing’s 50-year guarantee that means you have a door that will not warp, bend, twist, delaminate, or otherwise fail for fifty years.

This guarantee was unheard of in the industry, especially for large doors which traditionally were featured as exclusions from standard warranties because inherently they would fail and require service not long after installation (eliminated even from the most rudimentary 30- to 90-day standard warranty).

In fact, until recently, the largest door companies have turned away large door business in recent years, because, according to them,

“It’s just not worth the hassle.”

And they encourage the developers and contractors to find a high-end millwork or custom door maker to build the large doors in the project. These highly skilled craftspeople did the best they could, until they discovered Sing’s patented lightweight high-strength patented core.

Then, all of a sudden, they were building the most beautiful largest doors with incredible ease and without the heavy burden of having to service the fail-free large doors. In fact, they proclaim,

“There’s just no other way to do it.”

Now everyone, even the large door companies, are getting back into the oversized door game again, because they trust Sing Core to have their back when they most need it, from the inside out.

Make sure your next high-end door has Sing Core inside.



No Comments

Top News Stories

Free non warp door conultation non warping doors guaranteed no fail for 50 yearsFree Consultation

Free Non-warp Consultation

True Flat Challenge. We do not sell finished doors, but provide door planks to door industries and mill workers with patented Sing Core panels to build the most true flat, insulated premium doors in the world guaranteed. Warping is a challenge for high-end door makers. However, premium Sing Doors are highly insulated doors that will NOT warp, bend or twist. Premium Sing Doors made of patented Sing Core materials and special… -> READ MORE

True Flat Guarantee premium certified true flat1 – Doors

The Only 50 Year Non-warp and Structure Guarantee

How to build the best door. Sing door blanks are the best foundation for building the best doors. The Sing American French Door is revolutionizing the American modern door industry. Using Sing door blanks adds unparalleled core value to your doors; with it any size of door can be built that will not warp, bend or twist. The technology that enables door manufacturers to build Eco-friendly lightweight high-strength doors was invented and is… -> READ MORE

Best big door guaranteed insulated wood doors lightweight high strength pivot doors2 – Doors

The Best Big Door Guaranteed

We are always excited to set a new world record for perfectly flat large doors that can be guaranteed not to warp, bend, twist of otherwise fail for 50 years. No other door manufacturer has been able to do this, yet this week, we have come to the rescue of some of our most demanding high-end clients to enable them to deliver two of the best large doors that have ever been manufactured on planet earth. We invite you to join us in celebrating… -> READ MORE

Hot rolled steel sliding folding lightweight high strength doors3 – Doors

Hot Rolled Steel Doors

Sing Core brings an Eco-friendly approach to working with large spans of hot rolled steel with less weight and more strength than plain steel pound for pound, revolutionizing the steel fabrication process. In fact, we are best known for our large hot rolled steel metal doors and hot rolled steel wall panels. Our patented rolled steel panels feature custom metal fabrication uses high grade formaldehyde free adhesives instead of the more destructive welding… -> READ MORE

Best Large Door Guaranteed4 – Doors

How to Build a Sing Door

There is no doubt that Sing Core is responsible for the best doors in the world that can be built in any size for any functional purpose that can be guaranteed to not warp, bend, twist or otherwise fail for a full fifty years of regular use, even though Sing Core does not build doors. Some individuals can be confused when they visit Sing Core and expect to just buy a pre-hung door that is the best door in the world, only to find that Sing Core does not… -> READ MORE

How to build a portable floor lightwight high strength insulated modular5 – Floors

How to Build a Portable Floor

Here at Sing Core, we are contacted regularly by the most particular clients who seek only the best lightweight, high-strength portable floors made to the exacting architectural specifications. By using Sing Core to build a portable floor, even a low-priced (built with standard sing Sandwich panels) do-it-yourself raised floor you will be miles ahead of other modular floor systems. Just because you’re using our reinforced torsion box composite… -> READ MORE

Assembly of storage unit in trade show display lightweight high strength6 – Walls

How to Build a Wall for Trade Show

Due to the unique characteristics of patented Sing trade show display components (lightweight, high-strength and true flat), it has never been easier for you to design your own custom trade show displays. What’s more is that all of the components can easily be flat-packed for convenient packaging, shipping and storage. We can even provide custom trade show display carts for packaging and shipping your trade show booth components… -> READ MORE

Create a beautiful cloud ceiling with Sing Sandwich panels from Lowes7 – Ceilings

Sing Panels Make Great Ceilings

Our patented Sing panels make great coffered ceilings, ceiling clouds, box beam ceilings, and tegular ceilings. Our patented Sing core contains a torsion box in the SIP panel which greatly improves the structure.  Our panels are also called sandwich panels, honeycomb panels and lightweight panels. To order Sing panels for your ceiling project, please see our pricing page. Sing Ceiling Core. You can finish Sing Core with any load-bearing facial… -> READ MORE

Add the elegance of solid wood butcher block to any project lightweight high strength8 – Wood

Sing Wood Panels Available in Butcher Block

All Sing products come in your choice of external surface material (or “skin”). Our most popular include a variety of wood-based coverings to achieve the performance and visual aesthetics you desire per your specifications. Premium Sing Panels can have any natural wood surface material and be guaranteed not to warp, bend, twist or otherwise fail for 50 years. Available in Sing Butcher Block. Sing Wood Panels are available in nearly any… -> READ MORE

sing aerospace 19 – Aerospace

Aerospace Technology Torsion Box Panels

You might be as surprised, as much as we are, to find that many leading-edge technologically advanced transportation manufacturers who build the most high-tech aircraft, boat and train vehicles and containers often use old technology in the ground support of the manufacturing process. Industry-wide, aerospace, marine, mass transit, rail and trucking industries are now starting to upgrade ground support systems for their manufacturing process… -> READ MORE

Non warping door blanks in the news at Sing Core lightweight high strength10 – Doors

Guaranteed Non-warp Door Blanks

For years, Sing Core has been the only company in the United States who has been consistently providing custom door manufacturers with non-warping door solution for exotic doors of any size (up to 37 ft.) regardless of exterior surface material. Using patented Sing Core, any door can be made in any style of any material in any size that can be guaranteed to be true flat (well above AIA standards for flatness) and not to warp for 50 years… -> READ MORE

huge extreme edge pivot doors in seattle center for architecture design sing core11 – Doors

Seattle Center for Architecture & Design

Green building materials are the focus point of every architecture design now-a-days. As the home of the architect and design community for State of Washington, which is the leader in high tech and advanced materials playground for searching the planet for green, earth-friendly products is essential for this new home for all designers and architects. In the temple of Seattle’s Center for Architecture & Design, the evergreen state sets the standard… -> READ MORE

Amazon jet blue big box theater t slot display panels lightweight high strength12 – Walls

Amazon Jet Blue Big Box Promo

In the news Jet Blue will be offering free Wi-Fi and streaming Amazon Prime in-flight movies and television shows. The Jet Blue/Amazon partnership is calling this new aerospace technology, Fly-Fi. As part of the Amazon and Jet Blue promotional campaign, in typical Amazon-style, they have designed and built a huge Amazon big box to roll out the idea while inviting passengers to test drive the new concept. The giant Amazon shipping box… -> READ MORE

Rumney guggenheim gallery new york insulated museum panels lightweight high strength13 – Walls

Rumney Guggenheim Gallery

Not strangers to supporting the greater artists’ community with lightweight, high strength Sing Panels for use as art canvases of a rather large size, Sing Core was called upon by the designers of the Rumney Guggenheim Gallery in Brooklyn, New York to overcome some of the challenges due to weight and size ratios throughout the renovation of the former Williamsburg Bank building located at 834 Driggs Avenue. The race was on for Santiago… -> READ MORE

T slot panel insulated light weight high strength aluminum stronger than steel14 – Walls

T Slot Panel

The Sing T Slot Panel is an extraordinary composite of leading edge technologies resulting in a nearly unlimited variety of configurations. The good news: You can create to your heart’s content ~ and ~ much of the work has already been done, because most (if not all) of the imaginable components have already been designed for integration with the Sing T Slot Panel. Standard Sing T Slot Panels come packed with insulated rated at R3.5 per square… -> READ MORE

Hot rolled steel panels any size insulated lightweight high strength honeycomb15 – Doors

Hot Rolled Steel Panels

Sing Core brings an Eco-friendly approach to working with large spans of hot rolled steel with less weight and more strength than plain steel pound for pound, revolutionizing the steel fabrication process. In fact, we are best known for our large hot rolled steel metal doors and hot rolled steel wall panels. Our patented rolled steel panels feature custom metal fabrication uses high grade formaldehyde free adhesives instead of the more destructive… -> READ MORE

How to attach wood planks to sing panels vdeo vacuum press non warping wood stave panels for large pivot doors16 – Wood

How to Attach Wood Planks to Sing Panels

Sing Panels are so versatile, you can do just about anything with them. As a matter of fact, prepare to adjust your thinking, because thanks to Sing Wood Planks you can say Goodbye to Tongue and Groove. Tongue and groove joinery is designed to keep wood planks flat when attaching because wood moves. Natural wood (or most any wood product) tends to warp, bend or twist due to environmental changes. Not necessary when… -> READ MORE

Pre hung flush honeycomb door

17 – Doors

Architectural Door Specifications

General Specifications. Standard insulated flush door pre hung door marine grade plywood fiberglass aluminumStandard Sing Core 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 foam material is available in various… -> READ MORE

The worlds best gourmet cutting board non warp worlds best cutting board18 – Wood

World’s Best Cutting Board

Why do we use Sing honeycomb to build the Best Gourmet Cutting Boards in the world? Only the Sing Gourmet Cutting Board features a true flat cutting surface that creates a natural suction, clinging to your counter-top like it was meant to without rubber runners. The cutting surface is so smooth and quiet. Use your Gourmet Cutting Board for cold cuts, vegetables, cheese, meats, fish and poultry. Unique uses for your Gourmet Cutting… -> READ MORE

How to build a Sing Core tiny house19 – Tiny House

How to Build an Insulated Tiny House

There are many ways to build a Sing Tiny House. Here’s an step-by-step example of a highly energy efficient tiny house with R-27 walls being built from scratch. How to Build a Tiny House Videos & How to Build a Tiny House Photos. Free Tiny House eBook, Tiny House How to Build, How to Design, Order and Build your Tiny House, Tiny House Builders, Design and Build Tiny Houses, Summer Fun Project Build an Insulated Mildew-free Shed… -> READ MORE