Applications -> Building Components -> Doors

The only 50 year warp-free guarantee and full structure warranty

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

Sing interior doors

Click on the picture to see our interior door gallery!

Interior Door Panels

It’s so easy to use Sing Panels to make beautiful doors of any size. All Sing Door Panels are the same price, $8 per board foot. Sing Door Panels have a ten year warranty for internal use. For external use, we offer marine grade plywood. If you need strength, lightweight, insulation, and true flatness, Sing has the answer!

torsion box, sandwich panel, honeycomb panel, lightweight panel

Patented Sing Core: We put a torsion box in the SIP panel to make it better. The other names for our panels include sandwich panel, honeycomb panel and lightweight panel.

How to Buy


door large door Sing interior doorSing Door Panels are easy to order. You may choose from our stock panels or order custom sized panels. Our price is based on the length, width, thickness, and quantity. Submit a Work Order by fax or email, and we will give you a quote within one business day.

How to Build

Carriage Doors

Sliding/Pocket Doors

Sliding Glass Doors & French Doors






We offer many different styles of door blanks, when you receive your blank, it is ready for the final millwork touches. Perfect for the DIY projects and our panels are lightweight and easy to attach trim and hardware to give your home the final touch. Available in any size and thickness for your project.

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