Sing panels make standard doors!

Standard size Sing doors

Click on photos (above) to view standard door gallery!

Add the elegance of solid wood butcher block to any project lightweight high strength

Sing Butcher Block

Available in Sing Butcher Block

Sing standard doors are available in nearly any flat surface material to meet or exceed your architectural specifications including our patented non-warping wood butcher block that could be used for almost anything. See: Butcher Block for ideas.


Many educated homeowners demand that their trade professionals (architects, millworks, contractors, etc.) use Sing Core products in their home projects.

Trade professionals know that winning the bid for a door job can be difficult, especially when many companies have down-sized.  Teaming up with Sing Core’s patented door-manufacturing technology means we will work with trade professionals/wholesalers to competitively bid for door jobs because we quickly provide you with almost any style and finish of door blank with outstanding features, such as:

True Flat Guarantee premium certified true flatTrue flat and stay flat
High strength
Insulated (R-value to spec)
Sound deadening (STC 56 or higher can be reached)*
• High Precision
• Hurricane-proof
• watertight/waterproof
Fire retardant
• Bulletproof
• Available in any size or surface material

The best millworks in all major cities use our patented Sing Core technology to build their professional, guaranteed true flat doors, and now you can use this patented technology to win the bid for large-quantity jobs of regular-sized interior and exterior doors.  Oftentimes, we take on large millworkers’ overflow jobs to help meet the increased demand.  As such, our patented Sing panel is the problem solver for top door and millworkers in the USA.  (See our coast-to-coast client list.)


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Win the Bid! 

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Sing Panels are changing the way doors are made!

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Sing panels are economical!

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Licensing Agreement

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Seeing is believing!

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Sing Core works with the most sophisticated millworks and door manufacturers to help them build true flat doors that stay flat for decades to come.

Ask about Sing Cores Premium Non Warp patented Sing door panel large

Types/Styles of Doors -> Sliding Doors -> Pivot Door -> Flush Door -> French Door -> Carriage Door

Large / Oversize Doors -> Standard Doors -> Exterior Door -> Interior Door

Door Skin Types -> Wood -> Wood Stave -> Aluminum -> Metal -> Steel

Door Finishes -> Specialty Doors -> Soundproof -> Fiberglass -> Fire Retardant

* Note: STC rating varies according to size, thickness, skin, and other factors. Sing Core does not rate doors, although we are fortunate enough to have one of the best sound testing labs in the world, here in the Pacific Northwest. If you require a specific STC rating, Sing Core can build a door to your architectural specifications and have the resulting door tested at our rating facility for an official rating.