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Modern Pivot Door

The modern pivot door is expanding the possibilities and stretching the imagination of architects and designers around the world. Modern pivot doors are not the heavy or clunky big pivoting doors that require regular maintenance just to keep them functional, like those of days gone by. No, the modern pivot door is lightweight, fully insulated, and can be guaranteed not to fail for 50 years.

modern pivot door

Sleek, modern entryways may feature large wood pivot doors as front doors that are not only hugely functional but eco-friendly and sustainable for a better world. In the past, large wood pivot hung entry doors used in exterior and interior applications were difficult to create, install, manage, and maintain over time, but not if your modern pivot door has Sing Core inside.

Sing Core offers a variety of strength, flexibility, and value to the architectural pivot door industry that cannot be achieved otherwise. The biggest and best professional pivot door companies, millworks, and high sophisticated hand-crafted custom pivot door artisans say,

“There’s just no other way to do it.”

By “do it,” they mean that you just cannot make a large modern pivot door and keep is straight and true without starting with Sing Core as the foundation of all your modern pivot doors.

If you want exterior wood doors that pivot that are fail-free pivot front doors with flawless service records that are guaranteed to remain warp-free for 50 years, then you are best advised to make sure that Sing Core is in your modern pivot door specification.

Looking for Sing Core

Many people discover Sing Core when they are scouring the vast array of resources that exist in our modern-day digital age searching for inspiration for modern pivot doors and they set out to buy a modern pivot door with Sing Core inside. It doesn’t take long for them to figure out that getting such a door is easier said than done.

While the world’s best modern pivot doors do have Sing Core inside, Sing Core does not make modern pivot doors. Sing Core does work with the professional pivot door companies, manufacturers, and artisans, providing them with the material to make these large modern entryways happen. Allowing architects and architectural door designers to spread their wings, while Sing Core brings their modern pivot door dreams to life and helps them soar.

 

Inventor, Peter Sing, uses his expertise including his unique patented and patent-pending modern pivot door technologies to create the fully lightweight, fully insulated, warp-free substrate that makes these best modern custom front entry doors possible.

How does Sing do it?

Sing’s patented solution starts with a reinforced, fully insulated, vertical grain torsion box premium modern door core, then adds any variety of additional anti-warp technologies based on the size of the pivot door, the structure, the structure’s location and elevation, the orientation of the door, and the exterior skin of the door.

High Precision

And when it comes to precision, Sing’s core sports incredible tolerances of +/- .006 inch, which also supports the ability to deliver such outstanding results, truly a technological advancement in the industry.

As you may have guessed, large wood pivot doors present the biggest challenge, since natural wood grains tend to move and adjust according to changes in temperature, barometric pressure, and moisture in the air. Sing’s solution addresses these issues and cancels them out for any custom-made modern pivot door made of wood.

In this respect, Sing’s modern-day pivot doors, are true modern style doors even though Peter Sing admits he does not make modern pivoting doors. Sing says,

“We do not make the doors we are famous for. The architect specs ‘Sing Core Modern Pivot Door’ and we work with the people who are highly skilled in making our doors look and operate so good. It is a great team effort with magnificent results.”

When size matters, modern architecture is seeking solutions like Sing’s core, to deal with the challenges associated with the oversized front door issues.

How big can they be?

Up to 50 feet, or more with Sing Core.

The light weight of modern pivot doors with Sing Core inside makes custom modern pivot door installation a breeze. And the problems associated with using exterior modern pivot doors are just faint memories of the past thanks to Sing’s core, which also provides insulation for sound deadening capabilities and increased climate control.

Now you know why the best premium modern pivot doors have Sing Core specified in the architectural specifications, because if you want exterior wood doors that pivot, without having to deal with the high potentiality of failure due to warp or delamination, like they say, Sing’s core “is the only way to do it.”

Whether your modern pivot doors are single, multiples, or motorized custom-made pivot doors, you can maintain the modern appearance of strikingly new pivot doors while increasing longevity and performance in a fully sustainable manner.

 

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Pivot Doors in Luxury Homes

Pivot doors are among the most popular door we get requests for. Pivot doors in luxury homes are very common and are often over sized. Over sized is anything over the standard 3’ x 7’ door size. We supply the most high end and high precision doors to luxurious homes all around the world.

No one can do what we do.

For those who are not familiar with pivot doors-

Instead of the doors motion being controlled by traditional hinges, a pivot-hung door swings on a set of pins mounted in the top and bottom. The pivot door rotates on a pivot box in the floor and the top jamb rather than traditional door side hinges. This creates an elegant masterpiece that rotates effortlessly and usually no hardware is visible, except for the handle of course.

 

Pivot doors have many uses and can come in many different sizes. It is most popular to have over sized pivot doors that provide generous openings, but it is not necessary. Pivot doors are most commonly used as exterior doors, giving a beautiful and grand entrance to a home. They can also be used for interior doors. Whether it is to the bedroom, bathroom, or even laundry room pivot doors can add an elegant entrance to any room of your home. You could even have pivot doors for your closet!

 

We can make any size pivot door you may need and our doors are always built with the highest precision. We have perfected our craft so much that our tolerances are always within ±0.006”.
Our pivot doors are exceptionally lightweight, high strength, and always dimensionally stable.

 

Here at Sing Core, we always get requests for pivot doors. The majority of them are over sized. People from all over the world come to us with doors like this because we are the only door company who can make door of this magnitude last for many years. That is why we offer our-

 

50 YEAR GUARANTEE
A guarantee like this is unheard of in the door manufacturing industry. Usually, you will be offered 1 year at the most, but never 50 years. So if you need an over sized door, or any door, to last over 50 years, Sing Core has you covered. For more guarantee information, click here.

 

Sing Core’s patented technologies are always on the cutting edge of the door manufacturing industry. We are constantly working on improving our already state of the art technology. We can proudly produce large doors with great confidence that it will remain truly flat for the entirety of its lifespan.

We offer many different skin choices. Our choices range from concrete, metal, fiberglass, exotic woods, MDF, to even plywood. Click here to see our skin choice page. We specialize in custom doors, so if you do not see what you need just ask!

 

To order, go to our pricing page and fill out one of our pricing forms. This is the fastest way to get in contact our salespeople. Click here to go to fill out a pricing form.

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Breaking News:

Breaking News: Thin Doors Need Strength Too

Breaking News: Thin Doors Need Strength Too!

Sing Core has always been on the leading edge of the reinforced structural panel industry.

Our panels are among the lightest, strongest, and overall best on the market.

Watch the video below and hear how solid our doors really are.
 



This panel is super thin for its overall span. Overall thickness is only 1 3/4″. Our patented torsion box honeycomb allows us to create lightweight high strength panels that can be any size without any warping. Solid wood would be very heavy and can potentially warp shortly after being produced. This panel is a whopping 65 1/2″ x 120″ and only weighs 139.6 lbs.!

As you can see, the skin is birch plywood that is less than 1/8″ thick. Combined with our torsion box honeycomb design, this panel will be stable and remain rigid for many years.
Due to this panel being truly flat, it can stand alone on edge. If there was any deflection, the panel would be unable to balance.

Thin oversized panel standing on edge. 

 

Can any anyone else achieve this?

 

 

Let us know!
If not, share this with a friend who may need our patented technology.

 


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A door with these dimensions is greatly feared by many door manufacturers. A door like this is nearly impossible to build without having issues. Common issues with doors so large and so thin include warping, delamination, prevalent weak points, and many others. If this were produced with solid wood, the door would be unable to stand alone due to not being true flat. Sing Core’s true flat doors and panels comply with AWI standards and can stand alone.

Sing Core’s patented lightweight and high strength torsion box honeycomb core design makes building oversized doors easy and provides lasting strength and durability. We know our doors and panels are among the lightest and strongest on the market, so we guarantee every door and panel for 50 years!

We never do veneering in house. We only trust local professionals for veneering services. Sing Core only provides substrate to be veneered. We highly recommend using your local veneering professionals. Veneering requires highly trained professionals to ensure a quality finished product.

Our substrate with MDF is very good for hot pressing as well as preventing telegraphing in the outer skin. This is the best option for ensuring a quality veneered door panel. With Sing Core substrate and 1/8″ MDF, no cross-banding is required. MDF is a very stable substrate to use.

For other applications, plywood is very strong and provides the best dimensional stability. This is the best option for applying overlays, such as wood staves, drywall, concrete board, etc… We offer many different plywood options, see our skin type page for more information.

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Wholesale White Oak And Walnut Exterior Door

Wholesale White Oak Exterior Door With Walnut Inlay

The surplus exterior door has 1/8″ hardwood covering both sides and is comprised of patented Sing Core lightweight core. Having Sing Core inside means that this door is dimensionally stable and crafted with the highest precision. Sing Core inside keeps weight down while preventing warping and is backed by the same 50 year guarantee! Pictured is the White Oak skin with Walnut inlays. Measures a whopping 48″ x 88″ x 2.25″! This door sells for over $6,000, but you can get one today for only $1,900 if you act now. This door only comes in one size at this time, but can be trimmed up to 2″ on each side.

The Only 50-Year Warp-Free Guarantee

We work with patented Sing Core to bring you an Eco-friendly exterior door that can be easily installed, that is lightweight, stronger than steel pound for pound, fully insulated for climate control and sound deadening capabilities. And the best part? Your standard exterior door is fully guaranteed not to warp, bend, twist, or otherwise fail for 50 years.

Includes unfinished door slab only.

Scroll down for more information.


*see below for lead time and rush information

Description

What is included in your order:

Purchase includes the unfinished door slab.

 

Options

 

This door slab can be used with pivoting hardware, hinging hardware, or even sliding hardware.

The door slab has a solid wood perimeter that can be trimmed up to 2″ on each side, allowing the door to be anywhere from 48″x 88″ to 44″x 84.”

Lead time

 

Surplus lead time is 2 weeks. Standard lead time is 6-10 weeks. Rush orders will be accepted and charged accordingly. For more information, click here.

 

Customization

 

You have the option to customize however you would like. If this is something you are interested in, please make a note in your estimate submission. Feel free to give us a call or send us an email.

 

Phone: (360) 495-3577

Email: info@singcore.com


Help

This section is to help in determining what options to choose for your very own Sing Core exterior door.

Choosing the right door size

There are two main measurements to know when choosing the best fit for your new door.

 

Rough Opening

The rough opening is the space in the bare wall before a frame and door are installed or replaced.

 

Frame size

The door frame size involves measuring the width of the bare wall before the door or frame is installed, leaving about 1/2″ extra for better fitment. You also need to consider how thick the frame itself need to be to support the door of your choice.

Choosing the perfect skin

Modern doors are available in a wide array of skin options. This exterior door is available in MDF or Wood, the species currently available is White Oak, White Oak with a Walnut inlay, or Hard Maple. See below for examples.

Rush Options

A link to the rush options page is in the Lead Time section above or can be found here. Rush Options


Shipping Information

 

Our doors are shipped freight. We work with many freight companies to get you the door you need. Shipping times will vary depending on where you are located.

Every order is shipped from our factory in McCleary, Washington.


Ready to order?

*sold to trade professionals only

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What Is A Pivot Door?

A pivot door rotates on a pivot box in the floor and the top jamb rather than traditional door side hinges, which is common in most homes. Pivot Doors have become a popular choice for entrances, creating a bold statement at your first point of contact.

What makes pivot doors so unique? The pivot door or pivot window is an opening system with a central or lateral rotating axis that allows for very large door panels. The craftsmanship and technology of a pivot hinge allows for a larger opening than most other types of doors since traditional hinges cannot carry the same kind of weight. Pivot doors are fantastic options for where there is a large amount of space and enough floor room for the door to be able to swing all around.

Grounded in the principles of modern architecture, a pivot door emphasizes clean lines and simple shapes. Pivot doors are well suited for pivoting walls and can also be used as room dividers. Until now, affordable pivot doors are thicker than average doors and heavy in weight. The large size and heavy weight causes extra costs associated with shipping and handling. Shipping is more expensive because shipping costs are calculated on weight. Handling is more expensive because heavy equipment is necessary for transporting and manipulating the pivot door into place for installation. Pivot door hardware is also based on the affordable pivot door’s weight, so a heavier pivot door will require more expensive and heavy duty hardware. Here at Sing Core we manufacture custom premium wood pivot-hung entry doors for exterior and interior use. Our pivot doors feature our patented lightweight insulated torsion box pivot door core inside. Which imbues each door with the unique characteristics of a solid core pivot door featuring the exact size, material and appearance of any style of pivot door, while remaining extremely lightweight and incredibly strong. Independently University tested at 660 PSI, makes Sing Core’s pivot door core stronger than steel pound for pound. The pre-insulated core also means greater climate control and noise cancellation between spaces. Also, the lightweight of Sing Core’s pivot doors, means less shipping, handling, transportation and installation costs, requiring less expensive hardware.

A pivot, not a hinge rather than hanging from hinges in the frame, a pivot-hung door swings on a set of pins mounted in the top and bottom of the door. Transform the look of your home or office by opting for Sing Core’s affordable pivot doors. Pivoting front entry doors provide an elegant look and appear to float inside the door frame. We are offering premium wood pivot-hung entry doors for exterior and interior use that cannot be found anywhere else. Let Sing Core build your custom pivot doors, custom modern entry doors, exterior mahogany wood doors, or any other custom door you can imagine! If you can create the idea, we can create the door. Every Sing Core door comes with a 50 year structural guarantee, something that no other door company has been able to offer.

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Pivot Door 50 Year Guarantee

There have not been many truly significant advances in the manufacturing or pivot doors in the last hundred years, until now, with the invention of patented Sing Core which offers the only pivot door 50 year guarantee for a large custom eco-friendly lightweight high strength door.

Such a door could not be built before. In fact, when the largest door companies were approached with building a large custom pivot door, they turned the job away, because while such a door could be built and look spectacular when installed, it would not be long and the door would fail.

Large custom pivot doors were manufactured by high end millworks willing to do the work and charge the prices commensurate with a high degree of craftsmanship with reliable regular maintenance over the life of the door because the key to making these large pivot doors work over time would require a heavy maintenance schedule to straighten the doors that were known to warp and need repair periodically (potentially every change of season depending on the climate and geographic location of the big pivoting door).

This was the case of every large pivoting door over three-and-a-half feet wide and seven-and-a-half feet tall, especially if they were large wooden pivot doors. Natural wood tends to want to move according to any change in the environment. The result? Large warping pivot doors.

Enter inventor Peter Sing’s patented large pivot door core which empowers high end millworks and the biggest door companies in America to build the biggest lightweight high strength pivot doors in the world that can be

Guaranteed Warp-free for 50 Years

Inventor Peter Sing created a hybrid composite core and anti-warp technology to build large pivot door cores that could support the weight of any exterior material and stay straight and true. Sing’s True Flat Team helps to design and create the perfect door base material to accomplish the goals of the architects, designers, door engineers, artists, and end users, with no risk of warping doors.

The technology is based on a melding of new and old technologies using Sing’s out-of-the-box approach to problem-solving. Start with a basic torsion box design (traditional method of building large flat wooden products) but flip the grain of the torsion box frame on its side so that it lays perpendicular to the stress skins. Then before you apply the stress skins fill all the empty cavities inside the torsion box structure with rigid recycled foam. Cold-press with formaldehyde-free glue for a basic warp-free base material.

That’s the basic formula, but there are type of woods and other building materials which have a greater propensity to warp than others. Sing’s True Flat team reviews each door and determines if extra patented and patent-pending anti-warping technologies will have to be added to the door to keep it from warping, especially if it has a surface material with a greater potential to warp.

The Warp-free Pivot Door 50 Year Guarantee

Is a science which Sing has mastered. And just when you thought that might be all you might expect from any pivot door with Sing Core inside…

But Wait. There’s More…

All of Sing’s pivot doors also have an impressive list of features that you would be hard-pressed to find anywhere else, except for Sing’s factory located deep in Washington State’s scenic Pacific Northwest. They also offer,

SOUND DEADENING

For added safety and security for you, your family, at work, in scientific, government, and military applications. This is why you see Sing’s core specified in the best soundproof doors.

CLIMATE CONTROL

At least R3.5 per inch (R-value can be increased to match your performance expectations) of Sing Core give’s you more separation from the elements or greater temperature control in heating or cooling environments.

HIGH PRECISION

If you are looking at a lightweight high strength building material, Sing’s core can meet or exceed your precision expectations as it hosts high tolerances throughout (+/- .006 in.).

LOW MAINTENANCE

In side by side comparisons, pivot doors with Sing Core inside require less maintenance over time than any other door because, simply stated, they do not warp, cup, bend, twist, not otherwise fail.

LONG LIFE SPAN

Sing’s doors are designed and built to last for centuries but guaranteed to perform fail-free for 50 years. No other eco-friendly lightweight high strength material can do that.

Add to those characteristics, the following attributes:

LIGHTWEIGHT

A fraction (at least one-third less) the weight of other wood-based cores or their alternatives.

HIGH STRENGTH

Able to span long distances and carry loads with little or no support. Unbelievable unless you’ve had the opportunity to handle a Sing door first-hand.

WARP-FREE

No other material can compare to Peter Sing’s uncanny ability to build doors that just will not warp. Sing Core is the reason door companies, millworks, and custom door manufacturers are back in the business of building large pivot doors again.

50-YEAR GUARANTEE

The only door in the world guaranteed not to warp, fail, or delaminate for 50 years.

This is why more and more you are able to find Sing’s patented tech anywhere from beneath the sea (US Navy) to outer space (NASA) and everywhere in between.

Join the Sing Revolution today, for a better world.

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High End Pivot Doors

Sing Core goes through great lengths to provide the best architects and millworks with the best high-end pivot doors in the world. High end pivot doors stand out because they are generally massive in size which can be problematic for engineering a door which performs flawlessly over time.

Unlike hinged doors, your pivot door rotates on a pivot box, which only has two anchor points, whereas a hinged doors has three anchor points on one side of the door which helps to keep the door straight.

Sing Core assures clientele that they possess a high-quality pivot door that can be guaranteed not to warp, ben, twist, or otherwise fail for 50 years. Astonishingly, Sing Core can design huge wood pivot-hung entry doors that can also be guaranteed not to warp. (Something unheard of in the door industry until the invention of Sing Core.)

Inventor Peter Sing’s patented high-end pivot door core makes all the difference. Sing’s factory is not a door manufacturer, instead his factory provides the best door manufacturers, millworks, and custom pivot door builders with the base material which makes the highest standard of large pivot-hung entryways possible.

Exquisite cooperation in design and quality construction while working with a team of architects, door designers, engineers, manufacturers, finishers, and installers assures that Sing’s Eco-friendly high-end pivot doors possess the following attributes:

Lightweight

High Strength

Fully Insulated

50-year Warp-free Guarantee

Sing’s pivot doors weigh so little that millworks and door manufacturers are amazed that two people can easily maneuver a 20 ft wide pivot door blank. It is something you can’t quite understand until you are actually holding it in your hands.

These patented Sing cores are so strong, you can see Peter Sing standing on this 13 ft long one-inch thick panel with little or no deflection. Imagine what you could do with Sing’s core.

The pre-installed rigid insulation offers added safety and security, sound deadening, and increased climate control.

And what you get in the end is a pivot door that is prefinished with high-end craftsmanship that looks like a huge solid wood pivot door, and only you will know that it has Sing’s secret pivot door core inside.

This is how the highest quality pivot front doors are made.

Generally, large pivot doors are quite thick, which leaves anyone who encounters such a door with a striking first impression, which is imprinted in nearly everyone’s brain, and they will be found later telling stories about the enormous pivot door that articulated with such ease. Even so, Sing’s core is so lightweight and strong that you can create a high-end ultra-thin pivot door, if necessary.

The Sing Core pivot factory can also preconfigure your high-end pivot door with any type or style of custom lite opening. You can feature several lite openings for a particular design effect, or one large opening for that French door feeling that maximizes pivot door views of the outdoors and/or neighboring landscapes.

Peter Sing’s philosophy is one of simple beauty and lasting quality with an unparalleled guarantee which cannot be achieved with any other lightweight pivot door core, until now, thanks to his invention.

While most of Sing’s pivot doors are designed and built of wood, many are built of metals, such as aluminum, steel, and other types of metals including bronze pivot doors, and could be made of nearly any flat building material.

If you want the best high-end door with the best guarantee, maybe you should think about talking to your architect about having Sing Core inside your pivot door.

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High Precision Warp-Free Metal

Sing Core provides lightweight, high precision, and warp-free metal products to industries; such as military, aerospace, construction, high-end millworks, and door companies in panel or post and beam configurations.  These configurations are stronger than steel pound for pound and are guaranteed not to fail for 50 years.

Inventor Peter Sing provides his patented and patent-pending weldless metal technologies to solve the problems associated with the limitations of metal products.  Welding causes imperfections in the surface area and compromises strength.  Solid metal can look very nice but is so heavy.  It is highly impractical, expensive to handle, install, and the cost of hardware is outrageous.

Warp-Free Metal Doors

Oversized metal doors are a challenge for architects, designers, and engineers.  Standard-sized metal doors can even be a challenge, depending on your expectations.  The bigger a metal door is, the more problems you will face in; the building, transporting, installing, and ongoing maintenance of the door, hardware, and structure over time.

Sing Core’s solution solves the problems associated with metal doors by offering their patented alternative to traditional metal door manufacturing methods.  Thus resulting in the highest precision large doors in the industry with the highest performance across the board for lightweight and Eco-friendly metal doors.  So far advanced that each door is guaranteed to remain true flat and fail free for 50 years.

Looks Like Solid Metal

Whether your metal doors are made of; aluminum, brass, cold rolled steel, hot rolled steel, copper, diamond plated steel, galvanized steel, stainless steel, or any other metals you can think of.  When you encounter one of Sing Core’s metal doors, it looks and feels like a piece of solid metal, but achieves the high-end precision and performance that any other type of metal door cannot achieve.  If your metal doors need to be precise and true, it must have Sing Core inside.

Sing Warp-Free Metal is

Eco-friendly Lightweight  High Strength
Fully Insulated  Sound Deadening  Climate Control
High Precision  High Performance  Guaranteed 50 Years
Impact Resistant  Hybrid Composite  Solid as a Rock

Compare Your Metal to Warp-Free Metal

Standard Metal  Sing Warp-free Metal
Heavy  Lightweight
Welding  No Welding
Welded Frame  No Frame
Hollow  Solid
Strength Variance  Stronger than steel lb. for lb.
Inconsistent Tolerances  Sing Core Tolerance +/- .006-in.
Inconsistent Surface Area  Perfectly Smooth as fresh-milled
Expensive Hardware  Less Expensive Hardware
Expensive to Install  Save $ on Installation
Increased Maintenance  Little or No Maintenance
Potential to Fail  50-year No Fail Guarantee

If you’ve worked with long spans of metal, you know the limitations of how metal performs.  Take a look at inventor, Peter Sing, standing amidst a 13 ft. span on an aluminum panel that is only one-inch thick.

Inventor Peter Sing standing on a one-inch panel 13 ft. span w/little or no deflection

No other metal panel could perform like this.  Only warp-free Sing Core metal panels could accomplish such a feat and remain just as lightweight and strong for 50 years without fail.  This has been unheard of, until now.

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Pivot Entry Door

When it comes to large entrance doors, one pivot entry door comes to mind: That beautifully big pivot entry door with natural wood grain is so pleasing to the eye.

Q: How in the world do they keep such an enormous exterior wood door from warping?
A: With Sing Core inside.

Large entrance doors instantly garner attention and add curb appeal to any project, but featuring pivot doors as your entrance door makes an even greater impact on anyone who encounters such an enormous work of art.

Pivoting doors are more in demand because they attract attention like a magnet, especially if your pivot entry door is made of natural wood grain, because this just cries out: “Constant maintenance required” due to changes in the environment which causes such a big wood pivot door to warp. It doesn’t make the pivot door any less beautiful, but the regular maintenance can make such a door far less affordable over time.

That’s where patented Sing Core and inventor Peter Sing’s patent-pending anti-warp devices come to save the day. Sing, also the president of Sing Core, uses his latest technological advancements to help any pivot door company, millwork, or custom pivot door manufacturer build pivot entry doors of immense size quickly and easily without threat of failure or warping.

The idea of a new generation of warp-free modern entry doors is foreign to pivot door designers and engineers of yesteryear, that is, unless they have already heard about – and use – Sing Core inside their most important pivot entry door jobs.

How to Build a Warp-free Pivot Entry Door

Solid wood entry doors present the greatest numbers of challenges for the craftspeople tasked with transferring the architectural pivot door dreams into reality. We love the natural wood grain but it’s tendency to move at the slightest change in the environment creates problems. So, starting with Sing Core is the perfect place to start if you want to put your worries associated with exterior pivot doors behind you.

For years, Sing has been supporting the best of the best in contemporary architecture and designs, as well as the biggest most powerful pivot door companies in the world with the solutions to the problems associated with pivot entry doors over seven ft tall and three-and-a-half ft wide. Once you know how Sing’s core works, you, too, will know how to build a warp-free pivot entry door.

If you look deep inside the structure of Sing’s warp-free pivoting doors, you will find that the first component is torsion box, only the grain is oriented vertically instead of horizontally as is the case for traditional torsion box. Sing also keeps the structure grids of the torsion box very small, like two to three inches. Then, he fills the voids (the open centers of the individual torsion boxes which is normally left hollow) with recycled rigid foam.

Using formaldehyde-free adhesive, Sing cold-presses the composite materials together, sandwiched between two stress skins to create the solid hybrid warp-free pivot entry door blanks which are found inside the best high-end doors.

Even so, Sing’s warp-free technologies do not end there. Pivot entry doors are especially challenging due to potentially having one side of the door facing the elements, as in the case of exterior pivot doors, while the other side faces the structure’s interior. This is the perfect recipe for warping pivot doors.

Sing has a True Flat Team of door engineers in-house who assist in the design and creation of the core in such a way so as to account for all the challenges each pivot entry door may face. For instance, solid wood entry doors present the most problems, but not for Sing’s team.

Wood Entry Doors

They go to work, taking into account all the details of the door, including how the door will be used, what direction will it face, at what altitude will it make its home, what weather conditions will it be subject to, how will it be operated, suspended, and secured? As well as what

Sing Core can be found inside modern entry doors from beneath the sea (US Navy) to outer space (NASA) and everywhere in between because it is the highest precision (+/- .006 in.) Eco-friendly fully insulated (R3.5 to R6.5), lightweight (1/3 or less the weight of other solid wood-based cores), high strength (660+ PSI, stronger than steel pound for pound), impact resistant, climate control, and sound deadening pivot door substrate.

Any of Sing’s pivot doors could be made from any flat building materials, such as any type of natural wood grain, aluminum, brass, cement, concrete, cold rolled steel, copper, fiberglass, Formica, FRP, glass, HPL, Kevlar, laminates, Masonite, MDF, stainless steel, veneers, and just about anything you could imagine.

Also, your pivot entry doors are not limited in size, as Sing’s door blanks are featured in really big pivot doors up to 50 ft or more, and each can still be covered by Sing’s 50-year warp-free guarantee.

50-YEAR GUARANTEE

Sing offers the only way to build doors in the world which can be safely and securely guaranteed not to warp, bend, twist, cup, or otherwise fail, (including full structure warranty and guaranteed against delamination) for a full 50 years.

This is the best pivot entry door guarantee in the world, another reason why biggest and best door makers use it.

The world is changing, growing, and expanding at a rapid rate, and Sing’s pivot doors are changing the way architectural pivot doors of any type or style are being made.