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Wooden Doors

The most popular application for wooden doors is accentuated by their prevalence as interior doors. There are a number of reasons why it is common for wood doors to be used as interior doors, the number one reason is that as exterior doors, wood front doors are less stable due to the nature of wood grain to move resulting in warped doors. But not anymore, thanks to warp-free wooden doors by Sing Core.

The two biggest problems with big wooden doors are the (1) heavy weight and (2) tendency of wood to move due to changes in the environment leading to warped doors. Inventor Peter Sing has introduced to and made available his patented and patent-pending warp-free technologies to all industries. The industry which his technological breakthroughs have had the most impact is on the door and window industry.

Known the world over for his contribution to his warp-free wood and the strongest metal in the world which are both lightweight and Eco-friendly, the biggest and best door companies, millworks, and high end custom wooden door manufacturers are seeking out Sing’s emerging lightweight high strength core solutions to enable them to build doors that were either impractical or impossible to build without inviting a host of complications and problems over time.

Door engineers and contractors who would pass on even considering building large wooden doors would pass on that part of the project due to the exposure of not being able to offer a warranty on a large wooden door that would warp not long after installation.

Sing’s core helps empower purveyors of doors to boldly and confidently embrace the idea of providing large wood doors which Sing backs up with his

50-Year Warp-free Wooden Door Guarantee

This is not a misprint or typographical error. Peter Sing personally guarantees each large oversized wooden door that he helps his clients to build to remain warp-free for 50 years. That is to say that if your door has Sing Core inside, it will not warp, bend, twist, or otherwise fail (including lamination) for a full 50 years.

This is a guarantee which is unheard of amidst the door industry, as most wooden doors are not covered by any guarantee, and for those that are, the standard is 1 year and could include a limited warranty of up to 10 years. There is only one way to build a lightweight large wooden door that will not warp, and to do so you must have Sing Core inside.

How to Build Warp-free Wooden Doors

The secret behind Sing’s ability to build a warp-free door is not as easy as it sounds, as he has a team of warp-free wooden door engineers who he refers to as his True Flat Team which reviews every door, its size and active components such as hardware and surface material, as well as its location within the project or structure, and on the planet earth. The True Flat Team helps to design the perfect substructure to keep the door from warping, so every wooden door is a one-off individual work of art.

1. Hybrid Solid Core

Basically, Sing’s patented hybrid solid core includes a torsion box grid, where the grid size is relatively small, two to three inches, which is constructed of vertical grain wood fiber (many times stronger than standard horizontal grain). Each void of the torsion box is filled with a rigid (recycled) foam insert, and this reinforced grid structure is cold-pressed between two stress skins using formaldehyde-free adhesive. This is Sing’s base material, which is the basis of the core used within his strongest metal in the world.

2. Anti-wood-warp Technologies

Depending on the size of the wooden door, the wood species (and its thickness) hosted on the wood door’s exterior, the application, hardware, and location of the door, additional anti-warp and strengthening material may need to be added to the warp-free substrate to compensate for the additional concerns and challenges. Note that types of door hardware, such as side hinge, pivot hinge, or sliding door hardware, all have different inner configurations, specially designed for each application.

3. Solid Wood Doors

For that “looks like solid wood” effect for which Sing is renowned, solid wood edges matching the natural wood grain featured as the door’s surface material are added to give the appearance of solid wood doors when finished. You can see why doors built with the solid wood edges are featured at the top of the World Trade Center.

4. Apply Surface Natural Wood Grain Material

Sing’s factory has a unique expertise in the area of applying different surface materials to his warp-free substrate though since he supplies his patented products to door companies and millworks, more than half of them ship without door skins, and these are applied at the door company’s factory or in the millwork’s shop. Some will feature solid wood stave planks, others will host various wood veneers.

As is the rule, Sing’s factory does not finish the doors, apply hardware, or pre-hang the doors. This is all done by the companies that make Sing’s door look so magnificent in the field.

What to Expect from Sing’s Wooden Doors

When your wooden door with Sing Core inside is completed and installed you can expect to enjoy all the benefits of owning such a door.

1. Eco-friendly 2. Increased sustainability
3. lightweight 4. High strength
5. Dimensional stability 6. Warp-free technology
7. Sound dampening 8. Increased climate control
9. Save on maintenance cost 10. 50-year no-fail guarantee

You will agree, just as all the other door companies now know,

“There’s no other way to do it.”

Get a free drawing and Price Quote today.

 

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Cracks in Wood Stave Doors

Here, at Sing Core, we get calls all the time about problems associated with wood stave doors, especially if they are large, oversized wood stave doors. These problems, such as bending, twisting, cupping, and warping should be celebrated as wood’s natural tendency to adapt to it’s environment. Unlike other synthetic materials, wood stave is sourced from a previously live authentic tree unique unto itself, a valuable resource in the eco structure of our planet.

A tree is a living, breathing part of our environment, made of the same atomic stuff we are, a sort of shirt-tailed cousin, which survives consciously for years by continuously adapting to its environment.

Even following the harvesting of a tree’s wood, the wood’s independent slices fight for their right to continue to acclimate and survive, expressing their individuality and uniqueness.

That’s why designers, architects, and pretty much the rest of us love the look and feel of real wood. We appreciate the look of it, the design of the individual expression of the tree’s growth rings, and it makes you have a comfortable sense of being home in a virtual hug from Mother Nature.

When wood stave (natural slices of wood) is applied to a door core material, the wood will move to accommodate the environmental challenges and circumstances which it is presented with.
In the case of cracking wood stave doors, the surface crack is the nature of the wood to adjust to the tension of the door’s core. The wood is still trying to provide you with the best door ever, so it sacrifices the surface finish and moves to accommodate the needs of interior core of the door. A crack-resistant finish will result in the tension being spread over a larger surface area, developing a warped or cupped door which can be more problematic to deal with than a surface crack.

Natural wood stave doors will move, warp, bend, twist, and crack, unless they are uniquely engineered with the proper composite materials to result in a wood door that does not move.

Sing Core provides architects, custom door manufacturers, and millworks with the best structurally sound composite door core which is lightweight, insulated, dimensionally stable, and stronger than steel pound-for-pound. Properly laminated materials, including the application of the natural wood stave to the patented torsion box composite core in concert with patent pending straighteners, delivers to clients a natural wood stave door which can be guaranteed to remain warp-free, including a full structure warranty, for an unprecedented 50 years.

A cracked natural wood surface door is likely due to a moisture problem, which varies in intensity between interior wooden doors and exterior wooden doors. Any wood door needs to be properly acclimatized to avoid cracking and excessive movement, also contributing to a wood’s tendency to move would be considering the way in which the wood was sliced, cut, or sawn.

Wood stave is a much higher concept in wood-faced doors than wood veneer as wood veneer which is not susceptible to cracking or warping, it is very thin and cannot easily be repaired when slightly damaged. Wood stave is a thicker natural wood product which can easily be maintained using basic woodworking skills.

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Wooden Door

See: How to Build The Perfect 16 ft. Tall White Oak Door

Sing wooden doors make the best wooden doors in the United States and around the world. No other Eco-friendly lightweight wooden door core is stronger. Weighing in at a fraction of the weight of solid wood door core, patented Sing Core is stronger than steel pound for pound (660 PSI). This is the only way to make a large oversized wooden door that can be guaranteed not to warp, bend twist or otherwise fail for 50 years.

Wood Stave

AB-Plywood-Trimmed-Skin

American Plywood

Plywood-Panel-Mahogany-Hard Wood Beautiful Skin

Solid Veneer

 

Black Oak Doors

Cedar Doors

Sing Core Wooden Doors

Each professional Sing wooden door can be guaranteed to remain warp-free for 50 years, including a full structure warranty. This is why Sing Core wood doors are making such a huge impact on the door industry across the USA and abroad.

Any type or style of wood door can be made with Sing Core inside, such as exterior wooden doors, wooden barn doors, interior wood doors, wooden sliding patio doors, wood sliding room dividers, wooden French doors, wood stile and rail doors, just to name a few.

Patented Eco-friendly wooden doors with Sing Core inside are proudly made in the USA, using sustainable manufacturing methods using less energy, with responsible use of recycled and renewable resources, including natural wood fiber, producing little or no waste or loss of energy, leaving a negligible carbon footprint.

There is just no other way to make 20 ft. tall wooden doors that will not warp. Wood is a very difficult resource to use for anything over 7 ft. tall because of its tendency to move, especially in exterior wood doors. For instance a wood door that faces the elements on one side and the structure’s interior on the other is going to warp. That’s why no door company guarantees warp resistance of a wooden door for more than one year, that is, unless it has patented Sing Core inside.

So, how can you get wood doors with Sing Core inside? It’s easy, just go to your favorite architect, door manufacturer, mill work, or custom door company, and tell them what size door you want and be sure to ask for, “Sing Core inside.” We cannot sell or ship Sing Core doors directly to consumers or do it yourselfers, as we are the manufacturer supplying Sing Core door core only to door manufacturers and builders of custom doors.

Big Oak Doors

Here’s an example of a pair of 10 x 12 big oak doors, 3-inches thick. These are made using solid oak wood stave (or planks) trimmed thin at 1/8-inch and applied to patented Sing Core engineered substrate.

10×12 ft 3″ thick warp-free 1/8″ oak 520 lbs

The face staves or planks are expertly applied and nearly seamless. If done any other way, these face staves will separate or crack due to movement of the surface area, but because Sing Core does not move, this surface area will remain in pristine condition thanks to inventor Peter Sing’s warp-free contribution to the large wooden door industry.

Close up example of oak wood stave (plank) lamination

The secret to making a big oak door, like this, look like a solid oak door is to use matching oak grain stiles and rails for framing. So instead of edge-banding on the panel sides, you see solid oak wood edges which gives this the impression of being a big solid oak wood door.

extreme close up of corner revealing solid oak stile and rail frame

 

Choose any available type of wood for your wooden doors with Sing Core inside, such as,

Wood Stave vs. Wood Ply

Wood stave doors can be very costly to make, especially if you’re looking for a lightweight high strength solution for a warp-free guarantee for 50 years. Using Sing Core inside your wood stave door featuring wood planks from 1/8-inch to 1/2-inch will create more potential for warp due to the nature of natural wood grain. This is the beauty of the more economical wood ply option for building your wood door. Wood ply is far less expensive and has alternating grain orientation which also helps to keep the door straight. Wood plywood is just like any other plywood except for its featuring a particular wood grain predominantly on the surface, and it offers far more strength and reparability over time than a less expensive wood veneer. So, if you’re looking to attain similar visual results of a solid wood door at a fraction of a price you might consider having Sing Core inside your wood plywood door. Be certain to specify what type of natural wood plywood your want, if it is available, you can save thousands of dollars on your beautiful wood door. The most popular wood plywood features woods such as white oak plywood, maple plywood, oak plywood, mahogany plywood, walnut plywood, Douglas fir plywood, knotty pine plywood, and birch plywood just to name a few.

Large Wooden Doors

Large oversized wooden doors are the greatest hurdle facing architects and designers, because though there is little more impressive than a huge wooden door to catch your attention, so the bigger the better, but then there’s the issue with warping, which is a constant struggle for the owner to secure regular maintenance of such a beautiful wood door, likely at least seasonally.

Thanks to having Sing Core inside, you will never have to worry about warping wood doors again. While they are built to last for centuries, each professionally guaranteed Sing wooden door can be non-warping and include a full structure warranty for 50 years. No other Eco-friendly, lightweight, high strength wood door can have such a guarantee in the world.

And what if you’re looking to build a large door out of a material other than a natural wood grain? No problem, your doors could be made out of any available flat building material, such as aluminum doors, cement, concrete, fiberglass (FRP), glass, HPL, Kevlar, LVL, MDF, steel (cold rolled steel, steel diamond plate, galvanized steel, hot rolled steel, etc.) as well as the only unbreakable mirror doors, just to name a few.

Wooden Door Gallery

Maple Doors

Mahogany Door

Oak Doors

Walnut Doors

Sing Core Wooden Doors

Each professional Sing wooden door can be guaranteed to remain warp-free for 50 years, including a full structure warranty. This is why Sing Core wood doors are making such a huge impact on the door industry across the USA and abroad.

Any type or style of wood door can be made with Sing Core inside, such as exterior wooden doors, wooden barn doors, interior wood doors, wooden sliding patio doors, wood sliding room dividers, wooden French doors, wood stile and rail doors, just to name a few.

Patented Eco-friendly wooden doors with Sing Core inside are proudly made in the USA, using sustainable manufacturing methods using less energy, with responsible use of recycled and renewable resources, including natural wood fiber, producing little or no waste or loss of energy, leaving a negligible carbon footprint.

There is just no other way to make 20 ft. tall wooden doors that will not warp. Wood is a very difficult resource to use for anything over 7 ft. tall because of its tendency to move, especially in exterior wood doors. For instance a wood door that faces the elements on one side and the structure’s interior on the other is going to warp. That’s why no door company guarantees warp resistance of a wooden door for more than one year, that is, unless it has patented Sing Core inside.

So, how can you get wood doors with Sing Core inside? It’s easy, just go to your favorite architect, door manufacturer, mill work, or custom door company, and tell them what size door you want and be sure to ask for, “Sing Core inside.” We cannot sell or ship Sing Core doors directly to consumers or do it yourselfers, as we are the manufacturer supplying Sing Core door core only to door manufacturers and builders of custom doors.

Big Oak Doors

Here’s an example of a pair of 10 x 12 big oak doors, 3-inches thick. These are made using solid oak wood stave (or planks) trimmed thin at 1/8-inch and applied to patented Sing Core engineered substrate.

10×12 ft 3″ thick warp-free 1/8″ oak 520 lbs

The face staves or planks are expertly applied and nearly seamless. If done any other way, these face staves will separate or crack due to movement of the surface area, but because Sing Core does not move, this surface area will remain in pristine condition thanks to inventor Peter Sing’s warp-free contribution to the large wooden door industry.

Close up example of oak wood stave (plank) lamination

The secret to making a big oak door, like this, look like a solid oak door is to use matching oak grain stiles and rails for framing. So instead of edge-banding on the panel sides, you see solid oak wood edges which gives this the impression of being a big solid oak wood door.

extreme close up of corner revealing solid oak stile and rail frame

 

Choose any available type of wood for your wooden doors with Sing Core inside, such as,

Wood Stave vs. Wood Ply

Wood stave doors can be very costly to make, especially if you’re looking for a lightweight high strength solution for a warp-free guarantee for 50 years. Using Sing Core inside your wood stave door featuring wood planks from 1/8-inch to 1/2-inch will create more potential for warp due to the nature of natural wood grain. This is the beauty of the more economical wood ply option for building your wood door. Wood ply is far less expensive and has alternating grain orientation which also helps to keep the door straight. Wood plywood is just like any other plywood except for its featuring a particular wood grain predominantly on the surface, and it offers far more strength and reparability over time than a less expensive wood veneer. So, if you’re looking to attain similar visual results of a solid wood door at a fraction of a price you might consider having Sing Core inside your wood plywood door. Be certain to specify what type of natural wood plywood your want, if it is available, you can save thousands of dollars on your beautiful wood door. The most popular wood plywood features woods such as white oak plywood, maple plywood, oak plywood, mahogany plywood, walnut plywood, Douglas fir plywood, knotty pine plywood, and birch plywood just to name a few.

Large Wooden Doors

Large oversized wooden doors are the greatest hurdle facing architects and designers, because though there is little more impressive than a huge wooden door to catch your attention, so the bigger the better, but then there’s the issue with warping, which is a constant struggle for the owner to secure regular maintenance of such a beautiful wood door, likely at least seasonally.

Thanks to having Sing Core inside, you will never have to worry about warping wood doors again. While they are built to last for centuries, each professionally guaranteed Sing wooden door can be non-warping and include a full structure warranty for 50 years. No other Eco-friendly, lightweight, high strength wood door can have such a guarantee in the world.

And what if you’re looking to build a large door out of a material other than a natural wood grain? No problem, your doors could be made out of any available flat building material, such as aluminum doors, cement, concrete, fiberglass (FRP), glass, HPL, Kevlar, LVL, MDF, steel (cold rolled steel, steel diamond plate, galvanized steel, hot rolled steel, etc.) as well as the only unbreakable mirror doors, just to name a few.

Wooden Door Gallery