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Sing Core’s Surplus Door Panels

Surplus Door Panels – Available Now at Discount Prices!

Same Sing Core Quality – Ready to Ship Surplus Door Panels

Sing Core’s Surplus Door Panels: Looking for high-performance door panels without the custom price tag? Sing Core now offers a limited supply of surplus door panels at significantly reduced pricing. These panels are perfect for contractors, builders, designers, or DIY enthusiasts who want the patented Sing Core advantage without the lead time or customization process.

How to Buy Surplus Door Panels

Check our inventory list – When you’re ready to purchase, email sales@singcore.com

* Surplus Door Panel INVENTORY:

Check out our Inventory of Surplus Door Panels Below. – Note: Surplus Door Panels are sold AS-IS

 

1.  Surplus MAPLE PANEL

Surplus Door Panel by Sing Core

 

 

2. PINE PlyWood PANEL

Surplus Door Panel Pine PlyWood

 

 

3. Surplus FIBERGLASS PANELS

12 Panels: 35.5″ x 83.5″ x 1.75″  

 

 

4. Surplus BIRCH PlyWood PANELS

4 Panels: 46 3/4″ x 95″ x 2″ 
 
2 Panels: 36″ x 91″ x 2″
 
3 Panels: 42″ x 91″ x 2″ 
 
6 Panels: 36″ x 90″ x 2″ 
 
1 Panel: 47″ x 95″ x 2″ 

How to Buy Surplus Door Panels

Check our inventory list – When you’re ready to purchase, email Sales@SingCore.com with the title “BUY SURPLUS”

Please Note:

  • Surplus panels are sold as-is.
  • No custom modifications are included.
  • Shipping or local pickup options available.

Surplus Door Panels Are Great For:

  • Contractors who need fast turnarounds
  • Homeowners working on renovations
  • Architects and designers experimenting with new projects
  • Anyone looking to try out Sing Core at a reduced price

What Makes Sing Core Special?

Our patented core is lightweight yet strong, warp-free, and built to last. Every panel features:

  • A high-strength torsion box grid
  • Insulated foam for sound and thermal performance
  • Structural stability with extreme flatness
  • Eco-friendly construction

Even as surplus, these panels outperform standard solid wood, MDF, or hollow core alternatives.

Want to Try Before You Buy?

This is the perfect opportunity to test Sing Core on your next project.
Buy one surplus panel and experience the strength, stability, and simplicity that’s made Sing Core the top choice of architects, millworks, and contractors nationwide.

  • If Surplus isn’t for you and you still need to buy a Custom Sing Core Door, CLICK HERE for an ESTIMATE.
  • If you’d like to learn more about Sing Core’s large doors, check them out HERE***.
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Trade Show Associations

Applications -> Museum -> Trade Show -> Trade Show Links -> Trade Show Associations
Trade Show Associations

Exhibit & Event Marketers Association (E2MA)

Exhibit Designers and Producers Association (EDPA)

Exhibition Services & Contractors Association

Exhibitor Online

International Association of Venue Managers

Trade Show Advisor

Trade Show Executive Magazine

Trade Show Exhibitors Association

Tradeshow Week

 

CAEM: Canadian Association of Exposition Management
2219-160 Tycos Drive, Box 218
Toronto, ON M6B 1W8, Canada
Phone:  416-787-9377
Toll-free:  866-441-9377
Fax: 416-596-1808
www.caem.ca

CEIR: Center for Exhibition Industry Research
SmithBucklin Headquarters
401 N. Michigan Ave.
Chicago, IL 60611 USA
Phone: (312) 527-6735
Fax: (312) 673-6722
www.ceir.org

CEMA: Corporate Event Marketing Association
1512 Weiskopf Loop
Round Rock, TX 78664 USA
Phone: (512) 310-8330
Fax: (512) 682-0555
www.cemaonline.com

CIC: Convention Industry Council
CIC Headquarters Office
8201 Greensboro Drive, Suite 300
McLean, VA 22102 USA
Phone: (703) 610-9030
Fax: (703) 610-9005
www.conventionindustry.org

E2MA: Exhibit and Event Marketers Association
2214 NW 5th Street
Bend,OR 97701 USA
Phone: (541) 317-8768
Fax: (541) 317-8749
www.tsea.org

EDPA: Exhibit Designers and Producers Association
EDPA Headquarters
5775 Peachtree-Dunwoody Rd.
Bldg. G, Suite 500
Atlanta, Georgia 30342 USA
Phone: (404) 303-7310
Fax: (404) 252-0774
www.edpa.com

EEAA: Exhibition and Event Association of Australia
P.O. Box 6053
Frenches Forest NSW 2086 Australia
Phone: (02) 9452 7538
Fax: (02) 9452 7553
www.eeaa.com.au

ESCA: Exposition Services & Contractors Association
2260 Corporate Circle, Suite 400
Henderson, NV 89074-7701 USA
Phone:  (877) 792-ESCA
Fax: (702) 450-7732
www.esca.org

HCEA: Healthcare Convention and Exhibitors Association
5775-G Peachtree-Dunwoody Rd., Suite 500
Atlanta, Georgia 30342 USA
Phone: (404) 252-3663
Fax: (404) 252-0774
www.hcea.org

IAAM: International Association of Assembly Managers
635 Fritz Dr.
Coppell, TX 75019 USA
Phone: (404) 252-3663
Fax: (404) 252-0774
www.iaam.org

IAEM: International Association for Exhibit Managers
IAEM Headquarters
8111 LBJ Freeway, Suite 750
Dallas, TX 75251 USA
Phone: (972) 458-8002
Fax: (972) 458-8119

European Office of the Trade Show Association:
287 Avenue Louis, 2nd Floor
BE – 1050 Brussels, Belgium
Phone: 32 2 648-2043
Fax: 32 2 645-2671
www.iaem.org

PCMA: Professional Convention Management Association
2301 S. Lake Shore Drive, Suite 1001
Chicago, IL 60616 USA
Phone: (312) 423-7262
Fax: (312) 495-7262
www.pcma.org

SICO: Society of Independent Show Organizers
7000 W. Southwest Highway
Chicago Ridge, IL 60415 USA
Phone:  (877) YES-SISO
Fax: (708) 361-6166
www.siso.org

TSSP: Trade Show Safety Professionals
901 E. South Street
Anaheim, CA 92805 USA
Phone: (714) 254-3752
Fax: (714) 254-3747
www.orgsites.com/ca/tssp/

Qualified Sing Core Trade Show Mfgs

Aaron Carlson Architectural Woodwork

Acacia Originals

Allegheny Millwork

Artisan Millwork

Deerfield Millwork

Duratherm Door & Windows

Interior Environments

McFarland Door

Millworks by Design

Mission Bell Architectural Millwork

On Site Woodwork Corporation

Reilly Window & Door

Robert Shaw Mfg Co Inc

South Shore Millwork

Woodmeister Master Builders

Woodward Design+Build

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Table Associations

Applications -> Furniture -> Tables -> Table Links -> Table Association
Table Trade Shows

ARA

Arkansas Hospitality Association

Boutique Design New York

CRFA Show 2014

Florida Recreation & Park Association

IACC

IAFE Fair and Expo

International Association of Venue Managers

International Home + Housewares Show

IIDEX Canada

International Hotel, Motel + Restaurant Show

National Recreation and Park Association

New York Restaurant Show

NRA

TRA Roundup

Western Foodservice Expo

Qualified Sing Core Table Makers

Aaron Carlson Architectural Woodwork

Acacia Originals

Allegheny Millwork

Artisan Millwork

Deerfield Millwork

Duratherm Door & Windows

Interior Environments

McFarland Door

Millworks by Design

Mission Bell Architectural Millwork

On Site Woodwork Corporation

Reilly Window & Door

Robert Shaw Mfg Co Inc

South Shore Millwork

Woodmeister Master Builders

Woodward Design+Build

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Table Trade Shows

Applications -> Furniture -> Tables -> Table Links -> Table Trade Shows
Table Trade Shows

ARA

Arkansas Hospitality Association

Boutique Design New York

CRFA Show 2014

Florida Recreation & Park Association

IACC

IAFE Fair and Expo

International Association of Venue Managers

International Home + Housewares Show

IIDEX Canada

International Hotel, Motel + Restaurant Show

National Recreation and Park Association

New York Restaurant Show

NRA

TRA Roundup

Western Foodservice Expo

Qualified Sing Core Table Makers

Aaron Carlson Architectural Woodwork

Acacia Originals

Allegheny Millwork

Artisan Millwork

Deerfield Millwork

Duratherm Door & Windows

Interior Environments

McFarland Door

Millworks by Design

Mission Bell Architectural Millwork

On Site Woodwork Corporation

Reilly Window & Door

Robert Shaw Mfg Co Inc

South Shore Millwork

Woodmeister Master Builders

Woodward Design+Build

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Tables

The sky’s the limit when it comes to creating your sing table to meet your specifications, whether it is an extravagant dining room table, lightweight high-strength folding table or high-end custom butcher block table.

Throughout the Hospitality Industry, Sing Core’s tables are making a huge impact, making it possible to have a lightweight, high-strength table that – even if extremely oversize – will not warp, bend, twist and can easily carried, stored away or reconfigured on-the-fly. These unparalleled new technology tables are turning up in the finest hotels, motels and resorts in the United States.

Proudly made in America, fine dining establishment are embracing the Eco-friendly table top materials in their restaurants, banquet rooms, nightclubs and luxurious casinos.

We are proud to serve the most prestigious millworks in helping them to achieve their highest and best for their discerning clients.

If you are looking for the next generation in table technology, check with your favorite table manufacturer and ask about their Sing Core lineup.

How to Make Lightweight Quick Table

True Flat 25 Foot Long Conference Table

How to Build Lightweight Folding Table

 

table-photo-gallery

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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.

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Steel Doors

Applications -> Building Components -> Doors -> Door Links -> Steel Doors

Core Value of Steel Doors
It is how steel door shapes the future by invention of Sing Core.

See: Steel Door Gallery

Steel door technology has not made any major improvements since the development of EPS core which has higher insulation for replacing the paper core and wood based core used previously. Sing Core uses reinforced EPS or urethane foam to fill the voids of the structural torsion-box-like vertical veneer in those highly insulated Sing products, and… Viola! You have the strength which is approximately 30 times stronger than any other regular door made of foam. Steel doors made of patented Sing Core is the leading edge door technology that provides more insulation, strength and extremely lightweight. The end result is more Eco-friendly door; stronger and lighter weight without using heavy gauge steel but creating an even stronger steel door. Click here to see the steel panel regular foam vs. Sing core

Achieve the security, safety and elegance of the most economical, advanced steel door technology to your entryway with Sing Metal Doors made in your choice of high quality stainless steel, galvanized steel or cold rolled steel.

true-flat-13-feet-steel-door-span-under-load-with-very-little-deflection-guaranteed

This photo features a fully insulated 13 ft. x 3 ft. x 1 inch steel door with 20 gauge metal under 160 lbs. of load with hardly any deflection. No steel studs, no welding. See pix of steel panels ready for door applications.

Sing Steel Doors are the only insulated Eco-friendly steel doors that can be guaranteed true flat thanks to patented Sing Core’s torsion box/foam composite base material that not only ensures flatness at the time of manufacture but stays flat for centuries.

Lightweight

Honeycomb-Skin-Material-Options-Metal-AluminumYou get it all; Huge savings in heavy weight when compared to solid steel while exceeding standards of high-strength and built-in insulation backed by our limited lifetime guarantee at a fraction of the cost. It’s why we say, “Heavy does not mean strong – and light does not mean weak.” Sing Steel Doors weigh much less than other steel doors and do not require heavy steel reinforcement studs to achieve the high strength. Steel doors made Sing Core do not need expensive, heavy duty hardware required by regular heavy steel doors.

High Strength

Compared to solid steel doors, Sing Core is stronger than steel pound for pound. Patented Sing core could reach 1000 PSI strength vs. paper honeycomb core traditionally used in the steel industry and is changing how steel doors are made. Sing steel doors will not dent or kink like regular hollow core, paper core or foam core steel doors.

Economical

Patented Sing Core costs a fraction of high-end honeycomb substrates, like those used in traditional aerospace applications, and still outperforms any of them in lightweight, high-strength, eco-friendly economical solutions bar-none. And that does not even take into consideration the reduction in transportation/installation costs and reduction in maintenance and repair costs over time.

No Welding

no-welding-free-metal-fabrication-lightweight-eco-friendly-stronger-than-steelSing Steel Doors are manufactured without welding which reduces labor costs, environmental and health hazards and our patented method will not compromise the integrity of the steel surface of the steel door, like welding does. No need to compromise the integrity of your steel doors by incorporating the most high precision Sing Core (+/- .006 inch) material and our patented metal fabrication process.

Custom Lite Openings

Sing Steel Doors can come complete with custom lite opening cutouts for adding glass to your door. You are not limited to the type, shape or style of cutout for your glass opening. Other steel door companies offer a variety of window openings to select from. Sing Steel Doors allow you to create any glass enhancement that you can imagine.

Steel Door Replacements

Metal-doorSing Steel Doors are the number one replacement steel doors specified by architects and designers who demand high-quality and longevity backed by our rock-solid limited lifetime warranty. See our Clients List.

Steel Door Hardware

When it is of primary importance to achieve high-end security and stability of a steel door, one invariably runs into the issue of heavy steel doors causing additional strain on the structure and hardware. Patented Sing Core eliminates the heavy weight of solid steel while out-performing solid steel.

Service Industries

Sing Steel Doors are replacing other steel doors used in commercial, healthcare, educational industries as they are being retrofitted in schools, hotels, storm shelters and retail installations.

More Options to Meet Your Specifications

Sing Steel Doors are completely customizable to your specifications. For years the design teams have been working with architects, designers and contractors to solve the problems associated with pre-existing steel door technologies. There is nearly no limit to composite options that can be adapted to the sing Steel Door that will satisfy your requirements.

Variety of Applications

The versatility and customizable attributes of Sing Steel Doors offers almost unlimited applications including (but not limited to) bullet proof, lead lined, extreme weather, tornado, hurricane**, fire door, STC rated* and acoustical applications.

Available in Any Size or Configuration

Sing Steel Doors are available to meet your specifications and are not limited to a catalog of available items. Commercial steel doors are the best steel entry doors that are available in any configuration including steel double doors and commercial exterior steel doors.

Fast Turnaround Time

Special rush orders for custom size doors can takes less than one day if we have the materials required in stock.

Eco-friendly Sing Steel

Only Sing Steel Doors are a composite of patented Sing Core embracing our true green technology for a better world and steel which is one of the most recycled materials on our green earth.

Added Security and Benefits

Sing Steel Doors have the added benefits of increased security for vandalism-proofing, protection against windstorm or other acts of god, water proofing, increased fire protection and sanitation.

Substitute Architectural Spec # 08 13 19 Stainless-Steel Doors

Hot Rolled Steel Large Sliding Doors

 

* 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.

**Customer will need to perform lab tests to certify hurricane rating for local code compliance.

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Weatherproof Water Tight Wood Door

True Raise Panel Doors

True Raised Panel D

For exterior applications Sing Core wood doors are not only built true flat and designed to stay flat for centuries but they can also be virtually impervious to extreme weather conditions remaining watertight and will not warp, bend or twist over time thanks to our patented new door technology.

Some care must be taken in the selection of materials and substrate to achieve the desired results of your weatherproof and water tight wood door that can include free lite opening cutouts for glass insertion and combined with true raised panel doors for unlimited design options.

Marine grade plywood is an excellent exterior surface material, and augmenting surface treatments for sealing from the elements is also suggested as part of the solution for your water tight or weather proof expectations.

Architects seek out Sing Core for problem-solving for doors that exceed the demand that can be met by other door manufacturers, and commonly provide custom solutions for blast doors, bulletproof applications, underwater usages and extreme weather doors including hurricane doors*.

The key to designing the right door, is by clearly defining your expectations, so that Sing Core can provide you with a door that meets and exceeds your specifications, and thereby can be covered by our limited lifetime guarantee for your specific application.

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

Raising the Bar for Exterior Doors

Exterior doors routinely breakdown over time, leading to expensive maintenance, repair of replacement, but Sing Core weather proof and water tight doors are designed to exceed the expectations that you have learned to settle for in the past.

Sing Core is an extremely resilient material and is resistant to deterioration and/or rot even when exposed to the elements untreated.

Even without coating, Sing Core sandwich panels outlast plywood, solid wood, MDF, and particle board. Plywood and engineered wood rot and crack because of the weak glue layers. Sing Core panels last because the patented core material keeps the panels flat through torsion box technology, and therefore doesn’t allow the panel to crack, warp or twist.

As an alternative to weatherproof and watertight wood doors, Sing Aluminum and Fiberglass panels are ideal for outdoor applications for effective eco wood treatment.

Applications -> Building Components -> Doors -> Weatherproof Water Tight

*Customer will need to perform lab tests to certify hurricane rating for local code compliance.

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Door Trade Shows

Applications -> Building Components -> Doors -> Door Links -> Trade Shows

Trade Shows

AIA National Convention

Association of Millwork Distributors

IACSC Conference

IARW-WFLO Convention & Expo

International Builders’ Show (NAHB)

Lumber & Building Material Expo (NRLA)

Sunbelt Builders Show

Window & Door Dealers Alliance

Trade Associations

Qualified Sing Core Door Makers

Aaron Carlson Architectural Woodwork

Acacia Originals

Allegheny Millwork

Artisan Millwork

Deerfield Millwork

Duratherm Door & Windows

Interior Environments

McFarland Door

Millworks by Design

Mission Bell Architectural Millwork

On Site Woodwork Corporation

Reilly Window & Door

Robert Shaw Mfg Co Inc

South Shore Millwork

Woodmeister Master Builders

Woodward Design+Build

SING CORE DOOR MENU

CONTENT PRODUCT APPLICATION TRADES EDUCATION LINKS MEDIA
Products Sing Core Sliding Door Home Owner FAQ Links Media
Application Sing Sandwich Flush Door Architect How to Trade Shows Video
Sing Panel Panel Door Contractor Technical Top Door Co’s
* Skin Options French Millwork Core Types Type of Doors
Barn Door Door Mfg Veneer Millworks
Pivot Door Design/Build Laminate Door Hardware
Carriage Veneer Core Mfg Door Cores
Sound Proof Laminators Door Components
More Doors… Door Veneer