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Warp-free, lightweight, insulated honeycomb panels

Contact Us


Our Custom Doors
Don't Warp

Lightweight, high-strength panels
backed by our 50 year non-warp guarantee.


Lighter Museum Walls
& Tradeshow Displays

Higher performing panels
with our patented torsion box technology.

Trusted by the leading architects, millworks, and industries

“Nobody else out there could do it.” - Nate Neergaard, Designer at Brandner Design


Our materials enable architects & trade professionals to do their best work.

Learn how Brandner Design engineered 10′ tall bi-folding steel doors. We recommend watching this video in full screen. Learn more about their ten foot steel accordion doors.

Utilized for various applications, SingCore’s patented panels have established themselves as a premium door core.


Sing Panels utilize patented Structural Core technology, which is sandwiched between two skins (wood, aluminum, or any other material that can bear weight).  

This creates a torsion box, which allows our panel to be stronger, lighter, and truly flat with no warpage.  


1/3 the weight of traditional wood

Sing Panels weigh 50% to 87% less than wood depending on what skin, grade, and thickness are selected. Even a 4 inch thick door will weigh only 2 to 3 pounds per square foot. See for yourself at our lightweight product gallery.


High strength at over 660 PSI

Sing Panels have been verified structurally stable by the University of Washington at above 660 PSI, and can be custom designed to achieve over 1,000 PSI as per your specifications.

50 year warp-free guarantee

Traditional doors warp. Our panels don’t. We stand behind our lightweight, high-strength panels with the only 50 year-warp-free guarantee for our Premium Grade panels.

Insulated and sound deadening

Our patented SingCore panels prevent separation of the foam and the skin, which provides insulation value and sound deadening qualities. R-values that range between 3.5 and 6.5 depending on the type of foam used. For Sound, customize your door to reach the highest STC rating.

Recreate any material

Any substrate (skin) that is capable of carrying a load can be used as a skin with our patented Structural Core. We challenge you to find a lighter, stronger panel than our Cold Rolled Steel Composite Panels.

bi-fold doors


We use non-toxic glue for bonding skins to our Core. The structural material of SingCore is made of 100% renewable material with vertical grain wood fibers.

Made in the USA

All our materials are sourced from the USA. We’re proud to have our products entirely manufactured at our mill near Olympia, Washington. We deliver to anywhere in the world.

cfad seattle giant pivot doors

SingCore is proud to support AIA Seattle and the Center for Architecture & Design. Learn how the CFAD utilized SingCore’s flagship custom panels for their 12′ pivot doors.

giant sliding panel

Learn how your architecture firm, woodwork, or general contractor can utilize and finish our large, custom door cores.


SingCore also specializes in Museum Walls and Trade Show Panels. We’re working to revolutionize industries with more effective, higher performing products.


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