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Standard Pre-hung 6 Panel Door Specs

General Specifications

Standard insulated 6 panel door pre hung door marine grade plywood fiberglass aluminumStandard Sing Core pre-hung doors 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 standard foam material is recycled rigid EPS foam. A 10 inch natural wood lock block is positioned centered at 37 inches for door knob and locking mechanism placement. The core material is wood framed by 1.5 inch natural wood for finishing strength and attaching hardware. The torsion box is completed by adhering an exterior surface material (skin) in your choice of marine grade plywood, fiberglass (FRP) or aluminum. Bonding agent used in adhesion of the entire composite material is formaldehyde-free.

Standard Sing Core Pre-hung Doors include frame perfectly suited for the door of your choice and ready to hang. Specify either 2×4 or 2×6 wall thickness to determine frame size for door installation.

Every Sing Core manufactured door is finished to specifications and guaranteed for 10 years for structural integrity.

Detailed Specifications:

Scope: Subject to local building codes, the standard Sing Core door 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

Product Description: 1.5” or 2.25″ side-hinged door panel manufactured by Sing Core with frame, pre-hung.

  • Door component includes paint-grade door panel and frame for 2×4 or 2×6 wall installation

Door Panel Materials: Sing Core doors 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 wood stiles and rails
  • Facings are your choice of marine grade plywood (1/4 inch), 0.09 fiberglass (FRP) or aluminum (.62).
  • 6 true raised panels and trim are added to surface material without compromising strength or performance
  • Formaldehyde-free bonding agent is used for adhesion of all components

Interior Blocking: Solid wood implant is inserted for door knob and/lock block hard points.

Delivery: Reasonable care is taken to ensure safe transportation of your Sing Core door from factory to door shop for finishing and pick-up or deliver to your location.

Storage and Protection: Store your Sing Core door 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 door frame openings 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 hinging and latching assemblies operate freely and correctly

Finishing: The standard finishing and sealing of the Sing Core pre-hung standard door includes Marine grade plywood is paint grade, fiberglass in pre-primed, and aluminum is untreated. Additional finishing options include your specifications at additional charge.

Machining: Sing Core doors are easy to work with in the millwork shop for CNC machining or on-site for finishing, sawing, sanding, cutting and fastening. No specialized skills or equipment is necessary, other than standard woodworking tools. Treat Sing Core doors just like you would any other standard door blank.

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 doors feature built-in insulation value with an R3 rating per inch.

Acoustical Performance: Sing Core standard doors have a natural sound-deadening quality for noise control. Standard sound transmission class (STC) is 30*.

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 fiber and/or recycled material.

Warranty: Sing Core manufactured doors are structurally guaranteed for 10 years under normal conditions.

Basic Sing Door Spec Drawings: Click here

Door Specifications
Door Size
Actual Unit Size
Rough Opening Size
32″ x 80″ 33-3/4″ x 81-1/2″ 34-1/4″ x 82″
34″ x 80″ 35-3/4″ x 81-1/2″ 36-1/4″ x 82″
36″ x 80″ 37-3/4″ x 81-1/2″ 38-1/4″ x 82″

 

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.

 

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Sing Reinforced Structural Insulated Panels Specs

SING REINFORCED STRUCTURAL INSULATED PANELS

PART 1 – GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section.

1.2 SUMMARY

A. This Section includes patented Sing Reinforced Structural Insulated Panels (SRSIP).

B. Related Sections include the following:

1. Rough Carpentry
2. Timber Framing

1.3 PERFORMANCE REQUIREMENTS

A. Structural Performance: Provide SRSIPs capable of withstanding design loads including dead load, live loads, wind loads and seismic loads. Design loads shall be in compliance with the requirements of the local Building Code.

1.4 SUBMITTALS

A. Product Data: SRSIP manufacturer’s product literature including structural properties and installation instructions.

B. Shop Drawings: Show fully dimensioned fabrication and installation details for SRSIPs. Shop drawings shall be prepared under the supervision of a Professional Engineer.

C. Evaluation report.

1.5 QUALITY ASSURANCE

A. SRSIP Manufacturer shall be a manufacture licensed by patent holder.

B. Structural Design: A Professional Engineer shall perform a structural analysis and design of the SRSIP assemblies in accordance with the design loads.

C. Installation Contractor must have experience on projects of similar size and scope. Lead installer / supervisor shall have a minimum of 3 years experience installing SRSIPs or have completed a certifying curriculum at a dedicated SRSIP training program such as those provided by Lightweight University or equivalent.

1.6 DELIVERY, STORAGE, AND HANDLING

A. SRSIPs shall be kept dry and protected with waterproof covering during transportation and storage.

B. Exercise care to prevent crushing of SRSIP edges with cargo hold down straps during transportation.

C. Carefully load and unload SRSIPs from trucks to prevent damage to the panels.

D. Store SRSIPs elevated off of the ground on sleepers.

E. Take care in handling SRSIPs to prevent delamination. Do not lift panels by the top skin.

1.7 COORDINATION

A. Time delivery and installation of SRSIPs to avoid extended on-site storage and to avoid delaying progress of other trades whose work must follow the installation of SRSIPs.

PART 2 – PRODUCTS

2.1 SING REINFORCED STRUCTURAL INSULATED PANELS (SRSIP)

A. Oriented Strand Board (OSB): 7/16” thick minimum.

B. Core: [Expanded Polystyrene (EPS) shall comply with ASTM C578 and shall have a minimum density of 0.9. pcf.] [polyurethane foam core] [extruded polystyrene (XPS) shall comply with ASTM C578 and shall have a minimum density of 1.3 pcf]

C. Adhesive: Formaldehyde-free waterproof adhesive

2.2 LUMBER

A. Grade and Species: Visually graded dimension lumber No. 2 or better of any of the following species:

1. Spruce-Pine-Fir; NLGA
2. Hem-Fir (North); WCLIB or WWPA
3. Douglas Fir – Larch; WCLIB or WWPA
4. Southern Pine; SPIB

B. Lumber shall be kiln dried to not more than 19% moisture content

C. Lumber shall be clearly marked with grade stamp of grading agency.

D. Engineered wood products shall be used where required for structural adequacy.

1. Laminated Veneer Lumber (LVL)
2. Parallel Strand Lumber (LSL)
3. Laminated Strand Lumber (LSL)

2.3 FASTENERS

A. Cam Locks.

B. Panel Screws.

C: Adhesives.

2.4 FABRICATION

A. Cut SRSIPs to accurate lengths, angles, and sizes to produce close fitting joints.

B. Remove foam as required to accommodate wood blocking and splines.

C. Provide electrical wiring chases in foam core where required.

PART 3 – EXECUTION

3.1 PREPARATION

A. Examine foundations, sills, framing and other surfaces to receive SRSIPs and verify that conditions are suitable for the installation of SRSIPs. Report any unsatisfactory conditions to the Contractor. Do not proceed with installation until unsatisfactory conditions have been corrected.

3.2 INSTALLATION

A. Hoist SRSIPs in place by lifting equipment suited to size of panels. Exercise care to prevent damage to SRSIPs.

B. Install SRSIPs plumb, square and true to line.

C. Fill all panel joints with expanding urethane foam or seal by other approved method.

D. Repair or replace all damaged SRSIPs.

E. Remove debris from project site and legally dispose of debris.

END OF SECTION

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How to Build a Wall

Building an interior wall, either fixed or temporary is an all-day affair for the do-it-yourselfer. Using patented Sing products you can build an insulated lightweight, high-strength sound-deadening wall in minutes.

There are several methods for building a wall using Sing products.

#1 – Sing Sandwich

This is the least expensive and most common way to build a wall using 4 ft. x 8 ft.

No frame is necessary

EXAMPLE

Build insulated lightweight high strength wall in minutesWalls built in minutes with insulated Sing honeycomb modular wall panels

In this example, this room conversion can be completed in just minutes with six (6) insulated Sing Sandwich panels. This could be the division of a master bedroom or office, anywhere/any time; and the whole system can be assembled, disassembled and reconfigured as necessary.

H Channel for Joining Multiple Sing Panels EconomyHow to Connect Sing Sandwich Panels

There are many methods to connect your Sing products. In the example (above) simple H channels were used to connect the panels quickly and securely.

Unlike any other temporary wall system, your Sing Modular wall panels are:

* Lightweight * High strength * Insulated * Sound deadening * Eco-friendly * Made in the USA *

#2 – Sing Panel

Unlike Sing Sandwich panels, the Sing Panel has an embedded solid wood frame around all exterior edges of the panel. Standard width of the solid wood edging is 1.5 inches but could be any size to meet your specifications.

thru-bolt-panel-connection-1How to Connect Sing Panels

Again, many options abound for connecting Sing Panels but you have the advantage of having a solid wood edge to which you could nail, screw or use many alternative connection methods available to the craftsmen, millworks and contractors who use them.

While toenailing or screwing may be the least expensive quick fix, thru-bolt joining is an effective option because of the solid wood edge, allowing you to set up and tear down without damaging the panel’s edges.

#3 – Sing Modular Wall Panel

The Sing Modular Wall Panel comes complete with the connection method pre-installed and comes in two varieties…

How to Connect Sing Modular Wall PanelsSolid lightweight high strength insulated modular wall system buscuit joiningModular Wall Panel A

The Sing Modular Wall Panel A is the default model of the Sing Modular Wall Panel. The standard size is 4 ft. x 8 ft. x 1.5 inch but is available in any size per your specifications. These modular wall panels come pre-configured for connecting via biscuit-joining.

Biscuit-joining slots are pre-installed three along the sides (length) each side and two on the top and bottom (width) of the Sing Modular Wall Panel for easy installation and secure connection.

Cam lock panels for lightweight high strength modular wall panelsCam locks for cam lock panels used in lightweight high strength modular wall panelsModular Wall Panel B

The Mercedes of the Sing Modular Wall Panel comes with high-end quick-assemble/release cam locks. These cam lock panels come in any configuration for your cam locks to meet your specifications.

Normally, in Sing modular wall applications, cam locks are only necessary at the top and bottom of the sides of the panel. There is a considerable cost difference between the cam lock technology and biscuit-joining, but for the client that only wants the best joining method of all, cam locks are by far the choice of the elite end-users.

How to Get Sing Core to Build Your Insulated Temporary Modular Wall or Room Divider

  1. Know what you want
    1. Have at least an idea or drawing of what you want your wall or room divider to look like
    2. Determine how many and what size of panels you will need for your wall or room divider project
    3. Know what exterior material you want on your wall panels
  2. Decide how you will manufacture your project
    1. Seek out a professional
      1. Architect, Designer, Design/Build, General Contractor, Mill Work, etc…
        1. Give them your drawing, specifying Sing Core inside
        2. They will deal directly with us
  3. Congratulations!
    1. You are the proud owner of the most advanced insulated wall system in the world that is
      1. Eco-friendly
      2. Lightweight
      3. High-strength
      4. Insulated
      5. High-performance
      6. Will last longer than anything made with any other material with these benefits

How to Get Sing Modular Wall Panels

Sing Core manufactures what is considered by many professionals in the industry to be the best modular wall systems in the world, especially if you want temporary or permanently installed walls that are insulated, lightweight, high strength, sound-deadening, Eco-friendly and proudly crafted in the United States of America.

See: Pricing for more information, including wholesale inquiries.

 

 

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Solid Wood Stave Door Blanks

Applications -> Building Components -> Doors -> Solid Wood Blank Doors
solid wood stave sliding door wood planks composite honeycomb panels

Click on picture to see our wood skin gallery!

Our panels make doors!

Patented Sing Core solid wood stave door blanks feature the newest technology in the door industry for composite doors yielding the only eco-friendly, lightweight, fully insulated, high-strength doors with wood blanks of any size (up to 40 ft.) that can be guaranteed true flat and to stay flat for 50 years.

Large door versus regular-size door challenge (i.e., over 4 feet wide and over 8 feet in length):

Large doors are heavy, dimensionally unstable, require more strength due to the heavy weight, and are a challenge to manufacture, ship and install.  High-end jobs require precision and true flatness to please the customer.  A homeowner’s architect, general contractor and mill worker must solve the problem of warping doors.  The solution to the challenge is to use patented professional true flat Sing panels to make your doors.

Sing Core wood stave door planks are the only solid wood doors that will not warp, bend, twist or cup following installation.  This means no more continuous service calls for maintenance of big doors that cannot possibly stay straight due to the limitations of solid wood – or any other door core – that is subject to failure.  Sing panels have a patented honeycomb/torsion box interior which gives lightweight yet unsurpassed strength (pound-per-pound stronger than steel) and stability to any door, and allows Sing Core to provide a 50-year guarantee

Interior Doors:

Sing panels make amazing designer doors in any style.  With Sing panels, fragile doors such as French doors are made lightweight yet strong, not warping or breaking hinges, which will last for many decades.

Exterior Doors:

Sing panels make sturdy exterior doors in any style.  With Sing panels, exterior doors are lightweight and strong, even when oversized.  Our professional doors are guaranteed to stay true flat and not warp or twist for 50 years

When is a door not a door? When it fails to function as a door.

The problem is that all door core materials are either not high precision, too heavy or will move when exposed to moisture, humidity or change in temperature resulting in door failure.

Heavy solid metal or steel will not warp, bend or twist, but is not high precision due to welding (sing core tolerance is + or –  .006 inch!) and is often impractical due to the overweight issues causing excess strain on both the hardware and structure, causing continued maintenance issues.  The solution is our patented lightweight yet strong Sing core technology.

Finishing a door blank:

There are two types of finish for door blanks:  paint grade and wood grain.  Paint grade includes such finishes as metal, Masonite, marine plywood, etc.  Wood grain finish includes such finish as solid wood stave and thin veneer.

Why Use Solid Wood Instead of Veneer?

solid wood composite door planks any size thickness true flatNever settle for substandard veneer doors again. Door engineers prefer to use inexpensive veneer as opposed to real solid wood facings because veneer is thought to be less likely to warp, bend or twist.  But thanks to the super-strength of patented Sing Core technology, you can use solid wood stave and wood blanks with confidence knowing that your door can be guaranteed true flat and will stay flat.

How can a solid wood-faced door stay true flat? As every woodworker knows, when using a solid wood surface, the grain will move according to moisture or temperature change causing the door to fail. When using our patented Sing Core as a substrate you can safely use solid wood because the solid torsion box/honeycomb patented material is continually keeping the wood grain straight and true.  Whereas wood stave has more wood fiber giving it more of a chance to warp than thin veneer due to the unbalance of the both side of the door moisture contents, patented Sing technology solves this problem by combining stiffing skin on both side of our patented Sing core.  This Sing panel technology eliminates the troublesome movement of the door blank — warping is no longer a concern when wood stave is combined with patented Sing core.

In addition, solid wood is easy to work with, install (no need to hot press), repair and remodel.  That’s why professionals trust Sing Core’s years of expertise in helping to design the only wood stave doors (that look just like solid wood doors) that can stay straight and true for many decades while respectfully honoring the beauty and elegance of solid wood, which far outlasts easily-damaged veneers, yet can be sanded and repaired if necessary.

Celebrate your real wood!

solid wood stave door planks lightweight honeycomb guaranteed 50 yearsOur Eco-friendly lightweight, high strength alternative is the best   solution for combating the issues associated with weight and size,   especially large doors.  Only our patented Sing torsion box/foam   composite core combined with our years of experience provides   guaranteed solutions for oversize doors.

That’s why this technology is found everywhere, from beneath the sea   (US Navy) to outer space (NASA) and everywhere in-between.

Sing panels may be finished in almost any wood species, like   mahogany, redwood, teak wood, cherry wood, walnut wood, cedar   wood, Ipe wood, sapele wood, poplar wood, ebony wood, ash wood,   oak or any other hardwood or exotic wood types available.

This same wood blank composite technology is also a common solution for high-end projects like engineered hardwood flooring, shiplap, wood furniture, wood shelves, decking, shed doors or any other application demanding high precision and exemplary performance over time.

How is wood stave/veneer added to Sing panels?

Wood stave is added directly to the metal or wood skin our patented Sing cores.  Wood veneer is added to an 1/8-inch mdf attached to the metal skin.

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New Revolution in Trade Show Display Material

These new, lightweight, high-strength and true flat patented panels are sold by the square foot, just like traditional plywood and sheet goods.

Click Here for Economy Trade Show Panels

Sing-Core-Long-Carry-Bangkok-Thailand

40 ft engineered plywood: 2 inch thick weighs in at only 2 lbs. per sq. ft.

20 ft x 5 ft x 1 in galvanized steel panel high strength demonstration with 2 men standing on lightweight honeycomb panel 375 lbs

Metal panel: 20 ft. in length x 5 ft. wide x 1 inch thick weighing in at 3.75 lbs per sq. ft. and strong enough to hold 2 people. See pix.

Assembly of storage unit in trade show display lightweight high strengthHPL Trade Show Display Panels

Watch the video for slatwall, track wall, magnetic wall, two story trade show office, floating shelf, cable hanging shelf, etc… You design and we will build the panels for you – this 70 ft. custom trade show system be assembled in less than an hour by 1 man; including 70 ft. of back wall, side walls an enclosed office and storage area.

Now available in affordable lightweight slatwall trade show displays

All Sing Panels are sold like plywood by per square foot.

Fast price quote within 24 hours for custom trade show displays made to your specifications.

Your choice of material options including (but not limited to) HPL, plastic, any type of metal, plastic, plywood, etc… in many colors ready to trim to almost any size and/or add vinyl or metal skin for magnetic sign or hook. Available in almost any size thickness and/or shape.

the-secret-inside-true-flat-doors-oversized-large-doors-larg-sliding-doors-honeycomb-coreHigh performance engineered plywood

See pictures of Sing Panel and Sing Post and Beam supplied to high-end mill works from coast to coast. Click here to see clients list.

How is it possible?

The secret is in our patented natural vertical-wood-grain-torsion-box-filled-with-foam core that allows your team to build huge displays (even 2 stories) without framing.

Wholesale to trade show manufacturers

Click here to see our retail price and compare how much per sq. ft. your cost for the untrimmed patented Sing Panel. You will find out Sing Panel will not only become your top performer in the trade show display industry but reward you with a good profit margin by using Sing Panels.

sing-core-made-in-the-usaMade in USA high quality

All Eco-friendly Sing Panels, post and beams are proudly made in the USA.

We can produce hundreds of panels per day by our state of the art technology.

For your viewing please we are providing your with some extra photographic representations of some of the many possibilities of teaming your trade show display company with Sing Core. Feel free to view our Trade Show Display Gallery.

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With Our Free Consultation, Professional True Flat Doors are Guaranteed Not to Warp for 50 Years!

 

True Flat ChallengeSing-panels-lightweight-high-strength-honeycomb-core

We do not sell finished doors, but provide door planks to door industries and mill workers with patented Sing Core panels to build the most true flat, insulated professional doors in the world guaranteed.

Warping is a challenge for high-end door makers.  However, professional Sing Doors are highly insulated doors that will NOT warp, bend or twist. 

Professional Sing Doors made of patented Sing Core materials and special skin are the only Eco-friendly, lightweight, high-strength, insulated doors that are true flat and will stay true flat for 50 years guaranteed (with our free consultation and an additional cost) regardless of application or size.  Professional Sing doors will remain true flat even if they are garage doors, panel doors, sliding doors, carriage doors, or oversized large doors!

True Flat Guarantee premium certified true flatProfessionalSing furniture, such as conference tables, will also remain true flat.  Our guarantee means you do not have to be afraid of warping, bending, twisting or expensive maintenance.

The secret is our patented Sing Panels combined with appropriate skin (even wood), length, thickness and knowledge of years of experience in handling thousands of over-sized, challenging doors (for example see our Warehouse door).  See our coast-to-coast clients list. 

Patented Sing Core panels are about 15% the weight of particleboard, pound per pound stronger than steel and cost less, but more dimensionally stable than any wood core, a great advantage in your factor-in shipping costs.

 This technology has endless applications.  Click here to see how:  Door News Archive

true-flat-doors-in-quantity-fast-delivery-coast-to-coast-compare
Note: Only certified-professional (with free consultation) true flat Sing Doors qualify for our 50-year guarantee.  For other true flat doors, we may be able to make them more flat than the industry standard by adding more thickness and strong skin with a proper Sing core in order to build a true straight but less costly door plank. 

Sing Panels are changing the way doors are made.  Any type, style or appearance of any door with any shape, size or number of window-light openings, CNC cut-outs to offset the high labor cost of traditional style and rail doors.  One more reason that Sing doors are making record sales.

You can Google search our lightweight, high strength, true flat door to see our expertise:  Google Images

New and Improved Large Sing Doors

Our most recent developments include our highest performance large door solutions yet. Take for instance our most precision lightest weight and highest strength large wood pivot door that is not only true flat but guaranteed to stay flat without warping, bending or twisting for 50 years!

12 ft x 10 ft wood pivot door lightweight high strength non warping 50 year guarantee

This large wood pivot door is 10 ft. x 12 ft. and perfectly flat. Now, wood is normally a problem for any door, especially a large door, but used in conjunction with Sing Core door technology, we have taken large pivot door technology to a whole new level.

 

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Institutional

Sing Core offers solutions to challenges facing the Institutional industries when faced with key components that can enjoy the benefits of our super-strong, lightweight and Eco-friendly solutions that outperform any other material.Our schools division helps to provide primary educations, high schools, colleges and universities with high-end materials that are sound-deadening for increased privacy and security to enhance the experience of students, teacher, other faculty and staff in a wide variety of applications.

Sing Core is empowering the churches with lightweight solutions for furnishings. Lightweight tables that are stronger than steel and pews that can be moveable are all the rage with the finest religious facilities. Special event facilities enjoy being able to set up, tear down and reconfigure on-the-fly in less time with less manpower.

The medical industry rocks the healthcare circuit with everything in getting you from here to there from the doctor’s office to the hospital. And in our exclusive facilities you will find an increasing proliferation of Sing products throughout the best city halls, police departments, jails, prisons and government facilities. You will also find our creative solutions throughout military installations in Army, Navy, Air Force and Marines.

And when it comes to high-tech media outlets, the sound-deadening attributes of sing products make them a regular staple in radio stations and Television studios across the USA.

 Institutional

Schools

Primary Education

High School

College / University

Church

Sanctuary

Meeting Rooms

Tables

Temporary Walls

Pews

Medical

Doctor Office

Hospitals

Veterinarian

Judicial

City Halls

Government

Police & Fire

Jails & Prisons

Military

Army / Navy

Air Force / Marine

Mass Media

Radio Stations

Television Studios
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Made in the USA

Sing Core is committed to our strict US made pledge.

All Sing Core products are made in the USA using locally-sourced materials using sustainably honorable low energy creation processes with very little waste, and no toxic chemicals or manufacturing methods.

Many architects, designers and builders are also committed to doing their best to buy American seeking what is made in the usa.
In a time when many of the components that we use in construction and manufacturing in the Unites States are imported from offshore sources due simply to the reduced cost.

For instance, in the United States the average manufacturing job hourly rate of pay is $34.74, in comparison to China’s $1.36 per hour and even less in India (according to the BLS) making it extremely difficult not to be seduced by offshore’s cheaper materials.

According to Sing Core inventor, Peter Sing, “It is difficult to compete with imports, but we know that people want high quality and something that will last for lifetimes; not like disposable cheap imports.” Yet, many Sing Core products are actually exported outside the USA.

Given a choice between a product made in the U.S. and an identical one made abroad, 78 percent of Americans would rather buy the American product, according to a new nationally representative survey by the Consumer Reports National Research Center.

In these tough economic times, Americans are starting to join the Made in the USA movement. American businesses and the US citizenry are making it a point to demand American made products and materials.

“We are committed to bringing pride back to the phrase, ‘Made in America’,” says Sing. There was a time when ‘American made’ was synonymous with high quality, “and we’re putting America back to work, starting right here…” and empowering other Americans to join our growing number of crowdsourcing manufacturers.

We are seeing a grass roots revolution in American made manufacturing. As jobs are on the decline, we are seeing individuals with basic woodworking skills and craftsmen taking charge of their economic destinies by birthing bootstrap operations. “We’re helping people start their own manufacturing facilities at home,” and all you need is as little room as a single car garage to start.

There is a huge movement to manufacture green, sustainable building materials and products locally.

Imagine being able to get locally made building products or furniture with Sing Core as the base, making your American Made end products not only Made in the USA, but also green and sustainable, making the world a better place.

Sing Core has created a ripple effect that affects the local economy and grows to affect the national economy as they create jobs including supporting local drivers, shipping and packaging companies, as well as helping craftspeople replace lost income due to downsizing, or our declining fiscal outlook.

In a time when just one full-time income-earning American supports five other jobs in the United States, Sing Core is recycling an economic impact through our economy and creating more jobs for Americans

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Oversized Doors | Warp-Free Door Cores | SingCore

About SingCore

SingCore manufactures a patented lightweight, warp-free door cores and oversized door slabs used by architects, millwork shops, and builders across North America.

As door designs continue to grow larger, traditional construction methods often struggle with weight, warping, and size limitations. Large solid wood doors can become extremely heavy and difficult to keep flat over time, especially as heights exceed eight or ten feet.

SingCore door cores allow fabricators to build larger, lighter, and more stable doors without the problems associated with conventional door construction.

Our technology makes it possible to produce oversized pivot doors, tall entry doors, and large flush doors that remain flat while weighing significantly less than traditional solid wood doors.

50-Year Warp-Free Guarantee

SingCore doors are backed by a 50-year warp-free guarantee, providing long-term confidence for architects, builders, and property owners.

Warping is one of the most common problems in large doors. As doors increase in size and weight, traditional construction becomes more susceptible to twisting, bowing, and structural movement.

SingCore door cores are designed specifically to maintain long-term stability, allowing large doors to remain flat and functional for decades.

No Maximum Door Size

Most door manufacturers impose strict limits on door dimensions. These limits are often driven by weight, structural stability, or hardware constraints.

SingCore removes those limitations.

Because SingCore door cores are lightweight and structurally stable, architects and millwork shops regularly use them to build doors that exceed the typical size restrictions found in traditional door manufacturing.

Common applications include:

• oversized pivot doors
• 19-foot doors and taller
• large entry doors
• wide pocket doors
• architectural flush doors
• custom interior doors

Instead of designing around limitations, architects can design doors that match the scale of the space.

Lightweight Oversized Doors

Large doors constructed from solid wood or traditional cores can weigh hundreds of pounds, placing enormous strain on hinges, pivot systems, and structural framing.

SingCore doors can weigh 50 to 70 percent less than comparable solid doors, making them significantly easier to install and easier for hardware systems to support.

Reducing door weight also improves long-term performance by reducing stress on pivots, hinges, and frames.

Built for Architects and Millwork Professionals

SingCore manufactures unfinished door slabs supplied to trade professionals. Millwork shops and fabricators apply their own veneers, laminates, or finishes to complete the door to project specifications.

This approach allows SingCore to support a wide range of architectural door applications, including:

• oversized pivot doors
• flush interior doors
• entry doors
• sliding doors
• pocket doors
• custom architectural doors

Because every door is custom manufactured, SingCore can accommodate unusual sizes, thicknesses, and design requirements.

Custom Door Manufacturing

Every SingCore door slab is built to order.

Doors can be produced with:

• custom dimensions
• custom thicknesses
• MDF, plywood, or laminate-ready surfaces
• Suitable for any hardware
• oversized architectural formats

This flexibility allows architects and builders to create doors that would otherwise be impractical using conventional construction.

Made in the USA

SingCore doors are manufactured in the United States, McCleary, WA and supplied to architects, builders, and millwork companies working on residential, commercial, and institutional projects.

By focusing on high-performance door slabs and cores, SingCore allows fabricators to complete the finishing and detailing required for each project while benefiting from a door core designed for large-scale architectural doors.

Our Mission

SingCore exists to help architects and builders create larger, lighter, and more stable doors without the limitations of traditional construction.

With a 50-year warp-free guarantee and no maximum door size, SingCore continues to expand what is possible in modern architectural door design.