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 100% made in the USA.
True Flat and Guaranteed not to warp for 50 Years!
With our professional doors, we can grantee they will not warp for 50 years. Want to know more? Click here
What makes the best door in the world?
1 Highest precision✓
No air leak even without a gasket seal
Within +/- .006 inch tolerance door core. No other core can be built with this high precision.
No recall problem with perfectly straight doors even doors made of 100% wood
In fact, SingCore offers a 50 year true flat door guarantee on professional doors. No more warped doors.
3 Strongest door✓
Solid insulated reinforced torsion box technology sounds solid, no rattling noise for superior strength. If you kick a Sing door, you will break your leg
No rattling noise while closing door
Professional Sing doors are guaranteed not to fail for 50 years
An average door weighs approximately 1.5 lbs to 2.5 lbs per square ft. – even a 16 ft tall door! The best lightweight doors.
Up to R-6.5 per inch
Sound deadening up to STC 56 and
Highest fire-rating if necessary (by custom design and independent test to meet custom specs)
Any size and shape of light cut out within minutes ready for glass installation
7 Any type of door✓
8 Any size door✓
We are able to supply 20 ft tall Sing door panels to mill works and door manufacturers to build true flat doors that are true flat and guaranteed to stay flat for 50 years; even large oversize doors.
9 Any skin✓
Available in any exterior surface material: paint grade, wood grain, metal, (Aluminum, steel, copper, FRP, Cement, ceramic, Gramite, )
10 Increase production✓
Using sing door core provides high productivity for high end door makers. We offer OEM service for door manufacturers by providing 6000 pieces of Sing panels per month to build the best doors in the world. Use SingCore to help you Win the Bid.
New and Improved Large Sing Doors
Our most recent developments include our highest performance large door solutions yet. Take for instance our most precision lightest weight and highest strength large wood pivot door that is not only true flat but guaranteed to stay flat without warping, bending or twisting for 50 years!
This large wood pivot door is 10 ft. x 12 ft. and perfectly flat. Now, wood is normally a problem for any door, especially a large door, but used in conjunction with SingCore door technology, we have taken large pivot door technology to a whole new level.
How can I get the best door in the world?
You can specify that your door be manufactured with SingCore Inside by any of these Door Manufacturers. If you are designing your own high-end door you can have it custom manufactured by your local millwork being sure to tell them that you desire, “SingCore inside.”
Do you have a DIY solution?
Yes, for the avid do-it-yourselfer you can get Sing Sandwich panels from your local Lowe’s Pro Desk, lumber yard or sheet goods provider. Now you can make your own doors with SingCore inside.
You can sleep better at night knowing that you’re working with a revolutionary Eco-friendly building material that helps to make the world a better place for all Earth’s creatures.
Plus, you don’t have to build just doors out of your SingCore products, you can actually build just about anything with SingCore inside.
Doors Built with SingCore Inside