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Extra Wide Front Door

The inventor of patented Sing Core invites anyone to challenge his claim to fame being,

“The only way to build an extra wide front door that does not warp.”

Peter Sing’s revolutionary lightweight high strength extra wide front door core is what makes it possible for all the biggest and best door companies in the world, millworks, and specialty custom architectural door builders to build extra wide front doors that can be guaranteed not to warp for 50 years.


Peter Sing, the inventor of patented Sing Core and many patent pending anti-warp and composite technologies associated with the creation of extremely large door blanks (up to 50 ft. or more) which are high tolerance (within +/- .006 in.) and dead flat.

Sing’s True Flat Team reviews every extra wide front door spec and assists in the engineering of a door blank that can stay straight and true for 50 years.

Finally, thanks to Sing’s door building technologies, the biggest and best door companies, millworks, and custom door manufacturers are able to build enormous extra wide doors of nearly any material, which would otherwise be highly problematic to use, like solid wood for example, that are Eco-friendly and will not warp.

Plus, there’s more…

If your wide front door has Sing’s core inside the result will be a door which possesses these exciting characteristics:

  1. Eco-friendly
    1. Responsible use of natural materials
    2. Includes recycled materials
    3. Long lifespan
    4. High sustainability
    5. Reusable/easy to repurpose
  2. Lightweight
    1. Weighing in at a fraction of other solid core doors
    2. Less expensive hardware (based on door weight)
    3. Easy and less expensive to ship, handle, and install
    4. Less wear and tear on hardware and structure
    5. Fewer door-related injuries
  3. High strength
    1. Stronger than steel pound for pound
    2. More dimensionally stable
    3. Impact resistant
    4. Will not cup, bend, or twist
    5. Can span unsupported distances without fail
  4. Fully insulated
    1. Built-in insulation provides sound deadening
    2. Excellent separation between adjoining spaces
    3. Increased climate control
    4. Provides safety and security from the elements
  5. Warp-free
    1. Perfectly flat
    2. Meets or exceeds AWI standards
    3. Patented and patent pending warp prevention technologies
    4. Sing Core is the only way to do it, guaranteed
  6. Any Material
    1. Natural wood grain, including exotic woods subject to availability
    2. Aluminum
    3. Cement/concrete
    4. Fiberglass/FRP
    5. HPL (high pressure laminate)
    6. Laminates (including Formica, Masonite, etc.)
    7. Other Metals
    8. Steel (cold rolled steel, hot rolled steel, galvanized, stainless)
    9. Any other flat building material to specs
  7. 50-year Guarantee
    1. Warp-free guarantee
    2. Full structure guarantee
    3. Includes lamination guarantee
    4. Only doors with Sing Core inside can be guaranteed 50 years

So, if you’re looking for a wide entry door (“How wide?” you might ask? Up to 50 ft. wide or more), then you will be miles ahead with a low maintenance long life extra wide front door with Sing Core inside.

For some people, a door that is 42 inches wide or 60 x 80 front doors are considered as extra wide front doors, but here at Sing Core, our wide entry doors start at 48-inches and go up to 600-inches or more, so handling your wide front door is not going to be a problem for Sing Core.

How to Build an Extra Wide Front Door

You start with Sing’s patented hybrid torsion box composite wide door core, which is made of natural vertical grain wood fiber metric structure grids filled wall to wall with rigid foam sandwiched between two structure skins to complete the torsion box.

This creates an impervious warp-free surface to which you may apply nearly any flat building material to your specs to create any result you care to achieve.

All the biggest and best door companies, millworks, and large custom door manufacturers know this is the,

“Only way to build a large door that will not fail.”

Only the best extra wide contemporary front doors are made with Sing Core, and yours should be too, especially if it is an extra wide contemporary front door, to make sure you don’t get stuck having to repeatedly fix your door over time, saving you the headaches and costly maintenance costs.

Sing Core is the only way.

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Wide Doors for Hinge or Pivot Door Hardware

Oversized large paint grade Sing pivot door panelExclusive to multimillion dollar spec homes, the standard extra wide exterior doors are pivot doors to accommodate the unique challenges of wide doors.

The Problem

Wide doors will warp, not just top to bottom but side to side which compromises the seal and creates a problem for latching the door. Wide doors are problematic due to warping requiring regular maintenance to adjust the wide door accordingly.

The Solution

The Sing non-warping Professional Pivot Door Panels are the solution because if the door does not warp, you’ve solved the problem with the failure of wide doors altogether, and can be guaranteed to remain non-warp for 50 years. Even $10,000 wide doors cannot be guaranteed not to warp; even for one day.

This wide door could use concealed door hinges as swing door hinges or pivot door hardware for extra wide exterior doors thanks to Sing Core

This wide door could use concealed door hinges as swing door hinges or pivot door hardware for extra wide exterior doors thanks to Sing Core.


Lightweight Sing wide doors with custom tite cut outs for concealed door hinges or pivot door hardwareUsing the Sing non-warp door blank as the basis extra wide exterior doors used in multimillion dollar spec homes is not only the only solution, but also imbues your door with the following benefits:

  • Lightweight: Sing wide door blanks are 17% the weight of other solid wide wooden doors, i.e. 120 lbs. vs. 720 lbs. at 4 ft. wide door.
  • High Strength: Sing wide door blanks are stronger than steel pound-for-pound (660 PSI).
  • Insulated: Sing wide door blanks are packed with rigid foam insulation rated at R3.5 per inch at no extra charge for heating/cooling control as well as sound dampening.
  • Non-warp: Only Sing wide door blanks can be guaranteed not to warp, bend or twist –including full structure integrity – for 50 years.

Affordable Wide Doors

Expensive pivot doors start at about $10,000 and just the hardware (due to the heavy weight of the door) can run into thousands of dollars and requires highly skilled craftsmen to install/maintain.

Large non warp wood pivot door mahogany warp free door blank 12 ft x 10 ft 50 year guaranteeSing wide door are a fraction of the weight and price of extra wide exterior doors. Due to being so lightweight, less expensive pivot door hardware can be used. In fact because Sing wide doors are so light in weight, you can even use standard hinge door hardware. This is why Sing wide door blanks are the premium choice of high end carriage door manufacturers.

Now, wide doors need not be relegated only to million dollar homes, because making them more affordable puts them within the reach of discriminating home owners who would like to increase the impact of their entrance door by switching to an extra wide front door.

Retro-fit Wide Doors

Say, “goodbye,” to sidelites. Sing wide doors can easily be retro-fitted to replace a standard existing exterior front door and sidelites with a single Sing extra wide front door using your choice of side hinges or pivot door hardware.

SOSS concealed door hinges for Sing wide doors alternative to pivot door hardwareSing Wide Doors Always Latch

The difference between sing wide doors and any other extra wide door is that you can always count on one thing: Sing wide doors will always secure and latch every time because they will not warp nearly eliminating wide door maintenance. This high precision can be guaranteed non-warp for 50 years.

Hinge Any Way You Want

Thanks to the light weight of Sing Door blanks, you can choose whether your extra wide exterior doors use side hinges (we suggest considering the use of concealed SOSS hinges) or lightweight pivot door hardware for easy hardware installation.