About Pivot Doors

Pivot doors are the number one type of doors built with SingCore inside, especially if your pivot door is a large, oversized one that could present problems for those tasked with building, installing, and maintaining a pivot door of such magnitude.


Those big pivot doors are heavy, hard to manage, require specialized hardware, and have increased maintenance schedules as they add stress and strain to the hardware and structure if in regular use. The biggest pivot doors have huge potential to cause problems for the end user by warping and requiring regular maintenance, plus they must float, perfectly balanced between two points of contact. The smallest variance can render the pivot system inoperable.



Stop having to fix those big, heavy doors with costly repair or replacement all the time and


Building them right the first time or replacing them with pivot doors that have Sing Core inside.

Pivot doors with Sing Core inside are the only Eco-friendly approach to building pivot doors of any size that are the most sustainable doors on planet Earth.




48″ x 120″ paint grade pivot door

48″ x 120″ oversized paint grade pivot door

Pivot Doors with Man Door

Patented and patent-pending pivot door technologies wielded by Sing’s True Flat Team, results in enabling the biggest and best door companies in the world to build lightweight pivot doors which can be covered by Sing’s

50-year Fail-free Guarantee

There is no other way in the world to build a giant pivot door that is

Lightweight Stronger than steel Fully insulated
Sound deadening Offers increased climate control Impact resistant
Warp-free High precision (+/- .006 in. tolerance) Fail-free (including full structure)

And can be easily repaired if damaged to full structure strength in the field without having to disassemble the door.

See the Sing Core Pivot Door Video




See the Sing Core Pivot Door Gallery

Click to View Pivot Door Gallery

About Pivot Doors with Sing Core Inside

Pivot doors which are made using the patented and patent-pending Sing Core technologies are celebrated around the world as being the best pivot doors in the world.

Why Do You Need Sing Core Inside Your Pivot Door?

Pivot Door Problem

It’s well-known pivot doors fail more often than hinged doors because there’s only two points of contact on a pivot door. On a hinged door there are three or more anchor points on one side of the door to help keep the door straight. If a pivot door warps, bends, twists, or cups, the operation of the door can be severely compromised or fail altogether. If you have a large pivot door (over 7 ft. in any direction) failure is far more frequent.

Pivot Door Solution

THAT is why you need Sing Core inside your door. Using Sing Core is the only way to build a lightweight pivot door that is stronger than steel which comes with a full warp-free and structure guarantee for 50 years.


What makes a Pivot Door with Sing Core inside so unique?


High precision maple pivot doors

High precision maple pivot doors

Only pivot doors with Sing Core inside are lightweight, high strength, fully insulated, available in vast array of skin types such as natural wood stave, any flat wood-based sheet goods, alternative and hybrid skins, and/or metals. Any size large oversized pivot door up to 50 ft. Best pivot door guarantee in the world: 50 years!

  1. Lightweight
    1. Sing Core weighs a fraction of the weight of other solid pivot door cores
    2. Being lightweight saves the overall budget of the project
      1. Reducing shipping cost
      2. Reducing the cost of hardware (which is based on pivot door weight)
      3. Reducing heavy equipment costs on the job site
      4. Reducing risk of injury during installation
      5. Reducing maintenance costs on the door/frame/structure over time
  2. High Strength
    1. Sing Core is lightweight, yet stronger than steel pound for pound
    2. Independently tested at University of Washington
    3. Rated at 660+ PSI
    4. Able to span longer distance with little deflection
    5. Able to support unsupported load stress
  3. Fully Insulated
    1. Patented Sing Core is pre-insulated
    2. Insulation for climate control
    3. Your choice of R 3.5 or R 6.5 insulation value
    4. Insulation for sound deadening (used in sound proof doors)
    5. Insulation for added privacy, safety, and security
  4. Vast Array of Skin Types
    1. Natural Wood Stave Skins
      1. Any available species including responsibly sustainable use of
        1. Exotic woods
        2. Domestic hardwood
        3. Domestic softwood
        4. Imported wood(s)
        5. and any others available per architectural specifications
    2. Other flat wood-based sheet goods
      1. Veneer
      2. Plywood
      3. Marine grade
      4. Generic
      5. Domestic A/B plywood
      6. LVL
      7. MDF
      8. and any others available per architectural specifications
    3. Alternative and Hybrid Skins, such as
      1. Cement
      2. Concrete
      3. Fiberglass
      4. Plastic
      5. FRP
      6. Kevlar
      7. Formica
      8. Masonite
      9. and any others available per architectural specifications
    4. Metal Overlays
      1. Steel
        1. Hot-rolled Steel
        2. Cold Rolled Steel
        3. Galvanized Steel
        4. Stainless Steel
        5. Diamond Plate Steel
      2.  Aluminum
      3. Brass
      4. Bronze
      5. Copper
      6. and any others available per architectural specifications
  5. Any Size Door Can be Made Better with Sing Core Inside
    1. Any door up to 50 ft. tall, or more
    2. Any door up to 50 ft. wide, or more
    3. All attributes are imbued in any size of door made with Sing Core inside
  6. The Best Guarantee in the Pivot Door Industry
    1. 50-year warp-free guarantee
    2. 50-year structure guarantee

Designers and Architects are establishing a new trend in the architectural impact of structures that garner attention at first glance by greeting visitors with a large pivot door. The larger the front pivot door, the more impressive and attention-grabbing.

Large pivot front doors create the greatest impact when a structure is seen for the first time. These oversized pivot door are big and thick, and the bigger the better. These big pivot doors are taller, wider and heftier than other traditional front door styles. Even real estate developers are installing large pivoting entry doors in high end homes for that extra hit in the curb appeal presentation.

Though some door manufacturers build and stock standard pivot doors, ready to install, the high end large pivot doors are custom manufactured for each installation by millworks, craftsmen or custom door manufacturers. Each pivot door is like an individual work of art.


11 x 6 ft Warp-free Mahogany Pivot Door


The Tallest White Oak Pivot Doors

Take a look at our huge 16 foot x 3 foot Pivot Doors that are perfectly straight from top to bottom.



Huge 16 x 3 Foot Pivot Doors

See below how we can make this veneer skin door look just like solid hard wood door.  By applying White Oak on the left and right edges of the panel, then veneering the front and back, we can make a door that looks solid all the way through.  We save you money by leaving the top and the bottom of the door blank so your doors will fit into your project budget.

Looks Just Like Solid Wood

With our new solid edge/veneer face treatment, we can make any door appear to be a full solid wood pivot door, just like the pivot doors atop World Trade Center One. Here’s a closeup:


Closeup to see the appearance of solid wood detail in these pivot doors


Perfect Straight Large White Oak Pivot Door

This large pivot door is built with our highest strength construction, pound for pound, stronger than steel, using our specially designed patented and patent pending core that has been tested independently to withstand force upwards of 660 PSI.  It is lighter weight than any other door of its size, yet we can make these doors so straight they exceed AWI standards.

Large Pivot Door 126.5 x 60 x 1.75 White Oak High Strength Straightest Lightest in the Industry
This Large Pivot Door measures at 11 ft x 5 ft x 1.75 inch thick White Oak 1/8 inch stave door is so straight it exceeds AWI standards.  We make the lightest, highest strength, straightest doors in the industry.  All of our doors come with our Signature 50 Year Warp Free Guarantee.  They are all 100% hand made in the USA, using materials sourced from America.  No one else can do this!

14' Tall Oak Doors in One World Trade Center

Natural Hemlock Wood Stave Pivot Door

Warp-free Alder Wooden Pivot Doors

Large White Oak Pivot Doors

Large Pivot Door 126.5 x 60 x 1.75 White Oak Strong Straight Light in Weight
This magnificent large pivot door measures 11 feet tall by 5 feet wide, with  thickness of 1.75 inches, weighing in at only 173 pounds.  This door exceeds AWI standards, yet it is, pound for pound, stronger than steel.  This door is 100% handmade in USA, using materials sourced from America.  No one else can make this door!

White Oak Skin Large Pivot Door Julian Weber Architects_126.5 x 60 x 1.75_173Lbs 3
More yet, we manufactured this door with a custom cutout for windows using new and improved Sing Core Engineering, which allows us to make openings for your windows with more precision and customization than ever before!  No one else can do this!

Huge Maple Veneer Doors

Large doors are our forte, but not all doors are made alike, one of our most beautiful doors incorporates a flawless quarter cut maple veneer skin with solid maple edges.

Huge Maple Veneer Pivot Door 99 x 87 x 1.75 Looks Like Solid Wood
No one can make doors so large and beautiful, like we can.  We use the best materials, the most precise methods, and we build doors according to your dreams.  With our system, you can specify what kind of wood you want on your doors.  This beautiful vertical grain maple gives you the best possible results with the least amount of worry, so you can go about your business while we do the work.  Because our doors are built exactly to your specifications, installing our doors will go exactly as planned.  Because of our unique building methods, we can build doors of any size.

Stunning Wood Grain

Huge Maple Veneer Pivot Door 99 x 87 x 1.75 in edge banding
Notice how beautiful the grain is on these maple doors.  The edge construction is magnificent!  Voila!  No one else can do this!

You can see clearly, this panel edge shows the structural stability of these doors.  Look how straight the layers are.  Another company would build a panel that is marred by separation and bowing.  With our process, we can build doors that are strong enough to hold up to even the most rigorous usage.

12′ Tall Walnut Wood Stave Pivot Door

12′ Tall Walnut Pivot Door Only 177 lbs

Pivot Door Gallery

Ultimate Precision

Our tolerance levels are within +/- .006 of an inch.  Because of this, we can make doors that that are so precise, they exceed AWI standards.

Huge Maple Veneer Pivot Door 99 x 87 x 1.75 in perfect straight

Just Like Solid Wood

Often the measure of an amazing door is how the edges are constructed.  By studying this image, you can tell how amazing our doors are.  The by veneering our skins onto a solid wood edge, we can achieve superior results.Huge Maple Veneer Pivot Door 99 x 87 x 1.75 in edge corner

Pivot Door Swing

Large extreme edge pivoting hardware for large swing wooden room dividers with man door Pivot doors are often thought of as having a center pivot point. A pivot door with a center pivot defines the maximum access as basically one-half the door width, because in the fully open position, the pivot door blocks the center of the opening due to the location of the pivot. Large pivot doors may have no problems as a 10 foot wide pivot door can still have a 5 foot access opening.

Center pivots are not your only options when considering a pivot door, as the pivots can be placed at any location. Moving the pivot point of your pivot door more to one side or the other creates a greater egress area on one side than the other. For maximum opening, an extreme edge pivot point can be used for your pivot door, so that it operates very similarly to a swing hinge door. Example: 10×12 extreme edge double pivot doors in the Center for Architecture & Design, Seattle, Washington are each twelve feet wide, five inches thick and open for a full 23 feet of access (also feature a man door for easy access when in the closed position).

Tall Pivot Doors

A large pivot door can span from floor to ceiling of any structure as well as being very wide and thick.

Pivot Sliding Door

Another growth segment in pivoting doors is a method that combines the best of two types of door hardware to develop a pivot sliding door using multiple floor to ceiling pivoting door panels alternatively hinged and retrofitted in sliding door hardware to produce large accordion door wall systems. These pivot sliding door wall units create complete separation between any two rooms, functioning as folding stacking doors, yet when fully opened reveal one large space.

Pivot Door Materials

Pivot doors can be made of any flat building material including materials that would be impossible to make a hinge door due to the weight. The design of the pivoting hardware can accommodate a pivoting entry door that is many, many times heavier than any hinge door.

Large pivot door can be manufactured using available materials such as cement, metals (aluminum, cold rolled steel, copper, galvanized steel, hot rolled steel, stainless steel, steel diamond plate, etc…), natural or exotic woods (alder, bird’s eye maple, cedar, cypress, mahogany, olive, redwood, walnut, willow, etc… ), stone (granite, limestone, marble, sandstone, slate, etc…), just to name a few.

Heavy Pivot Doors

Though large pivot doors can span from floor to ceiling and the pivot door hardware can handle heavy weights, the challenge to overcome is the obvious one: The large size and heavy weight can create problems over time causing the need for routine ongoing maintenance dealing with issues that compromise either the pivot door or the structure itself.

Heavy pivot doors can cause undue stress on both the hardware and the structure, requiring maintenance on the pivot hardware, frame and possibly the structure under regular heavy use.

Light Pivot Doors

One way to optimize large pivot doors for weight is to use a strong lightweight substructure that will not compromise the structure of the door. SingCore large pivot door substrate is perfectly designed for large pivot doors sporting additional features besides creating a solid composite door that weighs a fraction of an otherwise solid door. How else could you make a lightweight 16 ft. tall white oak pivot door that can be guaranteed not to warp for 50 years? You can find 8 of these doors on the top floor of One World Trade Center, NY.

Modern pivot doors with patented Sing Core inside are strong (660 PSI, stronger than steel pound for pound) and the torsion box structure grids are packed with rigid insulation (for added R-value and sound deadening capabilities).

Using Sing Core inside your pivot door can transform any heavy pivot door into a lightweight pivot door.

Large Pivot Doors Warp

Warping large pivot doors are one of the chief problems associate with large pivot doors – or any large doors, for that matter – especially if the large pivot entry doors are made using natural woods, which are elegant when installed but tend to move according to variances in heat, moisture and other environmental conditions.

There’s really no way around the natural characteristics of wood grain to bend, warp, cup or twist – that is – until now…

Guaranteed Warp-free Large Pivot Doors

Only large modern pivot doors with professional SingCore inside can be guaranteed to remain structurally sound and warp-free for 50 years.

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 repairability 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 the price you might consider having Sing Core inside your wood plywood door. Be certain to specify what type of natural wood plywood you 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.

That’s 50 years of high precision, high performance, low maintenance enjoyment of your breathtaking very large pivot door, guaranteed.