Sing Core has a long history of solving the most challenging obstacles in thermally insulated doors made of any flat material that can be guaranteed true flat and stay flat for 50 years. Our doors are highly unique one-of-a-kind solutions that are used in the most exclusive (and expensive) structures around the world.

That is, until now. There has been an sharp increase in the demand for standard Sing doors that could be used in more traditional residential applications at a price that is in-line with other quality doors that are commercially available to the public but do not have all the characteristics that are unique to Sing doors.

Introducing Standard 3 0 7 0 Sing Doors

Sing Core is raising the standard of all doors by offering Sing Standard Doors that are available from any door company or lumber supply. For virtually unlimited door options, see even More Doors.


STANDARD 3-0 x 7-0 DOOR
Specs

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Click to See Standard 3 0 7 0 Door Specs

Sing Doors May Look Like Other Doors

Even though Sing Standard 3 0 7 0 Doors may look like other doors (because we can duplicate the look and feel of any door style) looks are only skin deep. The real difference between Sing doors and any other commercially available lies deep beneath the skin in the heart of the door itself. The core value of Sing door core imbues the door with a set of unique characteristics that cannot be found in any other types of doors.

3-0 x 7-0 Flush Door

Our standard 3-0 x 7-0 doors are framed for hanging by the door company or millwork you choose.

 

Stronger

For instance only Eco-friendly insulated Sing 3 0 7 0 doors are lightweight, high-strength, sound deadening and can feature any exterior material surface or look and appearance. Sing doors are the only doors that use a high-precision core (within .006 inch) that can be guaranteed to be true flat and stay flat, not to warp, rot, bend, twist or otherwise fail for 50 years.

Standard Door Sizes

Your standard 3 0 7 0 door is available in your choice of standard thicknesses:

  • 84″ x 36″ x 1 3/8″
  • 84″ x 36″ x 1 3/4″

(For other door styles and sizes, click here.)

Standard Door Materials

All three standard door styles and sizes (above) are available in your choice of three surface material types, paint grade, veneer, and natural wood stave, to better suit your application(s).

Standard doors are available in

  • Paint Grade (Birch ply)
  • Birch Veneer
  • Oak Veneer
  • Mahogany Veneer
  • Natural Wood Stave (check for availability)

Standard 3 0 7 0 Doors

All standard 3 0 7 0 doors are provided as door slabs only. Standard lock blocks are installed on both sides of door. No hardware, such as hinges or doorknob is included. Standard 3 0 7 0 doors are not available pre-hung from Sing Core. See your door company, finishing, adding hardware, and hanging door is the responsibility of the door company or millwork.





Interior doors available in 1 3/8″ or 1 3/4″ thickness w/R 3.5 per in. insulation. Exterior doors available in 1 3/4″ only w/R 6.5 in. insulation.

Prices do not include shipping, handling, or crate.

One Price Fits All

Sing Standard Doors are all the same price. Choose from Birch, Oak, or Mahogany veneer doors; all the same price. Also select your choice of standard 1 3/8″ or 1 3/4″ thick door (for even more strength and insulation) at no extra cost.

Enjoy getting the lowest prices on the best standard 30 70 doors available by participating in our special get acquainted offer. You can have our standard 3 0 7 0 door ready to pick up at your favorite door company or millwork and have the same Eco-friendly high quality doors that out-perform any other insulated doors in terms of lightweight and high strength.

Where to get Standard 3 0 7 0 Sing Doors: From your local sellers of doors or any of your favorite front door manufacturers.

Standard lite cutouts available (1 style cut-out per block. 10 piece minimum). Choose from style number 1-8.


Submit Form for Introductory Discount Price

Submit the following form to receive your special discount wholesale price on Standard 3 0 7 0 Sing Doors and pass the savings onto your customers.


Custom Standard Doors

For an additional charge, Sing Standard Doors can be customized to meet your specifications. As a custom order, you may specify any door type, light cut out / window openings, dimensions, characteristics, composites or door surface material.

Custom Sing Doors are available in any size – even large oversized doors – and Premium Sing Doors can be true flat and guaranteed to remain true flat, not to warp, bend, twist, cup or otherwise fail for 50 years.

For pricing on Sing custom doors, see: Pricing for more information.