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Masters of oversized doors, Sing Core has been enabling the biggest door manufacturers in the USA to make the best biggest doors that can be made and guaranteed to remain warp-free for 50 years. For 50 years, the major door companies opted out of the large interior door marketplace because the rate of complaint and return was too high, easily eating up year-end profits.

So, the door companies would supply all the standard-sized door while referring the large exterior doors, large pocket door, large interior doors, large glass sliding doors, large garage doors or large wooden doors to a millwork who specializes in one-off specialty doors and let them deal with the service calls.

Then, about 20 years ago the millworks started making doors with Peter Sing’s patented Sing Core inside. Now they could make huge exterior doors and large interior doors, including large wooden doors that would stay straight and true for 50 years, guaranteed. Until the invention of Sing’s core, this was never possible in the large interior door industry.

It took a few years for the standard door manufacturers to come around, but they did. Now you can do to just about any door company and get the entire door schedule for any project including the huge mammoth-sized doors all sourced from one company, plus the entire package could be covered by the manufacturer’s warranty without having to have a rider to exclude the big interior doors or enormous exterior doors.

Sing supplies the warp-free door blanks for each door company’s designer oversized doors which are available in any custom size large doors up to 50 ft. Sing’s interior doors come in a wide variety of styles to accommodate any size or style, allowing architects and designers to freely express themselves in terms of door sizes with unlimited large interior door options.

Floor to ceiling doors are reaching new heights of interior door designs for everything from custom interior to wine cellar doors in contemporary architecture and design projects across the USA. These large luxury interior and exterior doors are available in any flat building material such as wood, steel, and fiberglass exterior, and interior doors, including storm, and patio doors.

No job is too challenging for patented Sing Core. Sing has a specialized True Flat Team which reviews every job that would otherwise be too challenging to consider for any conscious project manager. The team reviews all the data of the fashioned interior door designs and comes up with the best solution(s) to provide a door that is

Lightweight (a fraction of the weight of other solid core doors)

High strength (Sing Core is rated at 600+ PSI, stronger than steel lb. for lb.)

Fully insulated (for sound deadening and climate control)

High precision (Sing’s core +/- .006 in. tolerance)

Warp-free (guaranteed for 50 years)

As many of Sing’s clientele has admitted,

“There is just no other way to do it.”

Sing’s Core doesn’t have too much advantage for use in standard sized doors, though companies who specialize in impact doors, sound proof doors, and high end refrigeration applications do build smaller doors with Sing Core inside.

Where Sing’s core really shines is in doors that start at 48″ x 96″(4′-0″ x 8′-0″) doors and go up from there (to 50 feet?). You probably want to know,

How to buy the best large interior doors for your home

It is easy if you have an architect onboard, your architect simply specifies a door with “Sing Core inside” then the rest of your team just makes it happen. If not, you can contact any of your favorite local door companies or millwork (just Google “millwork near me”) and tell them what you want. Peter Sing and his True Flat Team will use all their resources, patented and patent pending, to create for you the warp-free large interior doors of your dreams.

How can Sing deliver such large doors?

Military and government agencies are able to coordinate transfer of items that are too large for average transport, otherwise Sing designs them as modular big interior doors that can be assembled onsite, with all the precision of being assembled in his factory. This is another piece of the puzzle that Sing has mastered.

So, whether you are looking for the highest quality exterior doors or the widest range of interior door styles then and you desire only the best doors ever made with the best warranty in the United States, then made in the USA premium doors with Sing Core inside are the only doors that will do.

Accept no substitutes. (Don’t get caught trying to switch a regular door with one that has been specified as having Sing Core inside, because when it fails, the customer will contact Peter Sing, and everyone will know that you tried to cut corners… true story.)

Everything from impact resistant slab doors to premium and unique interior doors because every door with Sing Core inside is an individual work of art, which is guaranteed not to warp, bend, twist, cup, or otherwise fail for 50 years.

Make sure your handcrafted beautiful custom wood doors and beautiful solid wood interior and exterior doors have Sing Core inside.