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Pivot Doors Straight Talk

Years in the making, finally Sing Core has come out with the ultimate solution for Eco-friendly pivot doors made of any material and any size weighing a fraction of other door cores. This revolutionary patented solution has made Sing Core the number one resource for large pivot doors that are lightweight, high strength and can be guaranteed to remain warp-free for 50 years, as well as full structure warranty. No other large pivot door solution can match the power of Sing Core. Here’s the latest straight talk about pivot doors:

Pivot Doors Straight Talk

The only 50 year warp-free guarantee and full structure warranty

As the demand for large pivot doors is on the increase, the bigger they are, the more impressive they are, also, the more apt they are to fail due to door warp. Let’s face it, a door that is not straight and true is of little use as a door at all.

It is imperative for large pivot doors to remain straight and true, and the design team at Sing Core has created a full battery of patented and patent pending solutions to keep any large pivot door, made of any material perfectly straight, far exceeding AWI standards for flatness. The true flat experts at Sing Core have the knowledge and ability to create large pivot doors will not warp, eliminating the biggest complaint about pivot doors.

So, if you want a straight pivot door, the only way to get one made and guaranteed to remain warp-free for 50 years is to do what most contemporary architects, designers and engineers do, and that’s to specify that you want your doors to have, “Sing Core inside.”

Pivot Door Problems

Large pivot doors with Sing Core inside also solve other problems facing architects and designers, including, but not limited to…

Heavy Pivot Doors

Large pivot doors are big and heavy in weight. The large size and the heavy weight is problematic for a number of reasons. First of all, you must find a custom door manufacturer or millwork to take on such a project in the first place. Anything that is large is going to be difficult to create and manipulate through the building process just to create the mammoth door in the first place. Then you have to be able to move the door from the factory to the truck, using a combination of manpower and heavy equipment. Then transport the large pivot door from the factory to the job site. Once at the site, more manpower and heavy equipment is required to unload and move the door to where it will be installed. Installers now have to deal with the door, moving and fine tuning it to fit the space and attach the appropriate heavy duty pivot door hardware which can cost many times the price of the pivot door.

Heavy Duty Pivot Door Hardware

Expensive heavy duty pivot door hardware is required as the hardware is determined by the weight of the door. Even though this hardware is designed to handle a heavy weight pivot door, the straight talk is, if the door is used regularly, the hardware will start to breakdown and fail over time.

Large Pivot Door Maintenance

Which brings us to maintenance on the large pivot doors; yes, your large pivot door is impressive and leaves a great first impression but the more consistent lasting impression is left upon the pivot door’s owner who must bear the cost of constant repair and maintenance over the life of the otherwise magnificent large pivot door. As huge pivot doors are used, they cause stress and strain, not only on the hardware, but also the structure, creating the need for maintenance and repair on the pivot door for warp, the hardware as it deteriorates, and the structure for stress and strain.

Large Pivot Door Insulation

In most large pivot doors, little thought is given to the insulation value of the door. While large pivot doors are commonly thicker than their hinged cousins, the large pivot doors may not provide for energy efficient handling of thermal separation or elimination of sound penetration.

Large Pivot Door Danger

If you have a large pivot door, operating it may be problematic, especially when delicate little fingers are around when the pivot door is opened and closed. Large pivot doors are so heavy that there is the danger of injury to anyone, not just children, when the doors are in motion.

Pivot Door Solutions

Thanks you Sing Core, you can save money and have a better large pivot door experience over time, as the Sing solution is applied. Here are some of the solutions you can expect by specifying that your pivot door has, “Sing Core inside.”

Lightweight Pivot Doors

If your pivot door is built with Sing Core inside, it can weigh a fraction of the weight of any other solid core pivot door. The energy savings in just the creation and transport of your Sing pivot door help to make it more ecologically responsible, using less energy to create, ship and handle. But there’s more…

Lightweight Pivot Door Hardware

Because the type of pivot door hardware is based on the pivot door’s weight, a lighter weight door requires a pivot hinge which is matched. Real cost savings can be realized by being able to use the less expensive pivot door hardware, bring the cost of the hardware way down.

High Strength Pivot Doors

Your Sing pivot door is very strong as it was university-tested and rated at 660 PSI in strength, making it stronger than steel pound for pound. This superior strength is due to the patented insulated reinforced vertical grain torsion box core. Without Sing Core inside , you are limited to the ability of the material used to maintain the pivot door integrity over time.

Sing Pivot Door Maintenance

When your pivot doors have sing Core inside they are also nearly free of regular maintenance. If you have a professional Sing pivot door that does not warp, then you possess a large pivot door which can be guaranteed not to warp, bend, twist, cup, or otherwise fail for 50 years. Plus, if the door is damaged for any reason, it can be quickly and easily repaired on site (often without have to dismantle or remove the door) without compromising the pivot door’s strength or integrity. In addition, the lightweight of your Sing pivot door, means much less stress and strain on the hardware.

Sing Pivot Door Installation

Being so lightweight reduces costs and time by being so lightweight. Due to the bulky size several people will need to manipulate the door, but no heavy equipment will be needed because the crew can easily maneuver the large pivot door without much trouble. In fact, we commonly hear back from the installers about how they couldn’t believe how light and easy to work with large pivot doors with Sing Core inside are.

Insulated Pivot Door

Sing Core pre-packs your large pivot door with insulation wall to wall inside the torsion box structure imbuing your large pivot with increased ability for climate control and also sound deadening capabilities that are hard to find in other large pivot doors. If you’re thinking about separation between room, or particularly a pivot front door, the added insulation factor is of huge benefit and included in every Sing pivot door blank at no extra charge. Insulation upgrades are available per your specification.

Sing Pivot Door Safety and Security

Due to the increased insulation and high strength of your pivot door that has Sing Core inside, you can enjoy a greater sense of safety and security. The high strength will prevent breaching the door from unwanted guests. These are often used as impact doors. If you kick other lightweight pivot doors, they could easily fail and offer egress to an otherwise secure environment, but if you kick a Sing pivot door you will not break the door. You are more likely to break your leg and the sound deadening characteristics inhibits eavesdropping.

In the event a child, or anyone, gets their hand or fingers caught in a Sing large pivot door in motion, the likelihood of surviving such an event is much more likely as less damage will occur thanks to the Sing solution being so much lighter in weight than other large pivot doors.

Shouldn’t your pivot doors have Sing Core inside?


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Basic Sing Door Spec Drawings

The following are standard drawings of doors which you can print and/or modify for marking up your specifications as an alternative to paying for professional shop drawings.

Hinged Door

Pivot Door

Sliding Door

Splined Door

Doors with Professional Sing Core inside are the only Eco-friendly doors that can be guaranteed to remain warp-free for 50 years, including full structure warranty.

Thank you for trusting Sing Core with all your lightweight high-strength door needs for any type or style of door in any size made of any flat building material.

 

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Large Cold Rolled Steel Door Modular Assembly Specifications

General Specifications

 

Standard Sing Core Cold Rolled Steel Door Blanks are manufactured with patented Sing Core material as the base interior substrate of the door. The Sing Core substrate material is created using a vertical grain natural wood torsion box design while the traditionally empty voids are filled wall to wall with recycled foam. The foam material is available in various forms depending on your specification. The default is recycled EPS foam. Natural wood lock blocks can be positioned at locations as necessary for locking mechanism placement or as anchor points. The core material is framed by 1.25-inch wood stiles and rails for finishing strength and attaching hardware. The torsion box is completed by adhering 16 gauge cold rolled steel as exterior material (skin) according to your specifications.

Cold Rolled Steel Door Surface Material

The door blank surface material is made of 16 gauge cold rolled steel unless otherwise specified. Bonding agent used in adhesion of the entire composite material is formaldehyde-free.

Click here for tips on How to Create the Right Sing Panel for your specific project.

Every Sing Core manufactured door blank is unfinished (unless specified otherwise) and professional grade is guaranteed for 50 years for warp-free and structural integrity.

Detailed Specifications:

Scope: Subject to local building codes, the standard Sing Core door blank is intended for use in:

  • Single family dwelling interior applications
  • Multifamily dwelling, low-rise professional office, library and low-rise motel interior applications
  • Lighter use industrial building and factory, hotel and retail sales building interior applications

 

Cold Rolled Steel Door Materials: Sing Core cold rolled steel door blanks are manufactured using Eco-friendly cold-press process. Composite materials include:

  • Sing Core vertical wood-grain torsion substrate filled with recycled EPS foam
  • Core material is framed with solid wood stiles and rails
  • Facings are 16 gauge cold rolled steel
  • Formaldehyde-free bonding agent is used for adhesion of all components

Large Door Component Assembly: The largest doors (see 10×10 example drawing tot he right) may not be easily transported from the factory to the job site. In cases such as these doors are divided into two or more modular components and joined together on site using patented Sing biscuit joining method. This method results in a near seamless joining of two or more door blanks without compromising flatness or structural integrity.

Architectural Specifications Substitutes

For information on some of our architectural substitutes click here.

Interior Blocking: Solid wood implants can be inserted as lock blocks or anchor points. Also additional stiles (vertical wood implants) or rails (horizontal wood implants) can be positioned at any desired location inside the cold rolled steel door. (Note: Depending on your expectations, solid wood implants should be supported by at least 12 inches of Sing Core material to maintain true flatness.)

Delivery: Reasonable care is taken to ensure safe transportation of your Sing Core cold rolled steel door from factory to your location including proper crating to protect the natural beauty of your cold rolled steel doors during transport.

Storage and Protection: Store your Sing Core cold rolled steel doors in an upright position and allow to acclimate to room temperature following shipment receipt or prior to finishing or installation.

Preparation: Per manufacturer’s specifications, ensure that openings or attachment walls are constructed plumb, true and level prior to installation. Select fasteners of adequate type, number and quality to assure proper function.

Installation: Installer shall be specialized in the installation of the type of work that is associated with the project and will comply with manufacturer’s installation policies and procedures to ensure proper end use.

Verify that attachment, hinging and latching assemblies operate freely and correctly

Finishing: The finishing of the Sing Core standard cold rolled steel doors is the responsibility of the client due to the product being delivered in unfinished condition unless specified otherwise in writing for use in interior applications only. Any exterior use must be approved in advance to avoid warranty exception and sealing must be in accordance with manufacturer’s specifications to protect against a variety of environmental conditions as necessary. In reference to exterior applications:

  • Seal all 6 surfaces with two coat minimum on operable panel(s)
  • Finishing or re-finishing must be completed following acclimatization and installed within 7 days
  • Avoid finishing after rain (or damp) or during periods of higher than average humidity
  • At least once a year, conduct periodic inspections of coating to ensure no wall panel components are exposed
  • Reseal the surface as necessary

Machining: Sing Core cold rolled steel doors are easy to work with in the metal shop for machining or on-site for finishing, and fastening.

Strength Performance: Patented Sing Core has an unsurpassed strength as compared to other lightweight substrate materials tested at 660 PSI (based on 2″ x 2″ grids and 3/4″ thick) for superior structural integrity and is resistant to warp, twist and crack when compared to other materials.

Light Weight Performance: Sing Core weighs much less than other traditional building materials, as much as 50% less; or more, as little as 4 lbs. per sq. ft. yet sustainable and true green technology.

Insulation Performance: Standard Sing Core door blanks feature built-in insulation value with an R3 (can be upgraded to to R6.5 or more) rating per inch, depending on architect’s specifications.

Acoustical Performance: Sing Core standard wall panels have a natural sound-deadening quality for noise control. Standard sound transmission class (STC) is 30*. Additional noise control specifications can be met at the behest of the customer or designer and must be noted in advance.

Eco-friendly: Sing Core is manufactured using natural wood fibers, no formaldehyde, or toxic chemicals, is created using less energy than any other core material with little or no waste. The structure of Sing Core is 100% renewable (nature-grown) clean wood fiber and/or recycled material.

Warranty: Sing Core standard door blanks come with a 10-year warranty, while professional manufactured door blanks can be structurally guaranteed and warp-free for 50 years under normal conditions.

Basic Sing Door Spec Drawings: Click here

variety-of-design-options-for-architectural-doors-illistration-sing-core
Custom-cut Window/Lite Openings: Lite openings for glass inserts can be custom cut per your specifications (drawings above show examples of standard openings) for glass insertion.

Door Specifications

Door Width
Rough Opening Width
Rough Opening Height 6/8
2/0 (Single) 26″ 82-1/2″
2/4 (Single) 30″ 82-1/2″
2/6 (Single) 32″ 82-1/2″
2/8 (Single) 34″ 82-1/2″
3/0 (Single) 38″ 82-1/2″
4/0 (Double) *50″ 82-1/2″
4/8 (Double) *58″ 82-1/2″
5/0 (Double) *62″ 82-1/2″
5/4 (Double) *66″ 82-1/2″
6/0 (Doulble) *74″ 82-1/2″

See also: Door Technical Information

Appearing regularly in Contemporary Architecture Design

* Note: STC rating varies according to size, thickness, skin, and other factors. Sing Core does not rate doors, although we are fortunate enough to have one of the best sound testing labs in the world, here in the Pacific Northwest. If you require a specific STC rating, Sing Core can build a door to your architectural specifications and have the resulting door tested at our rating facility for an official rating.