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Insulated Plywood

Sing Sandwich and Sing Panel are the world’s most advanced rigid insulation panel system utilizing patented Sing Core as the insulated reinforced torsion box structure which is the green building solution that is lighter in weight and stronger than steel (660 PSI) pound-for-pound.

rigid insulation r value insulated plywood lighweight high strengthThermal Insulation R Value

Customers using Sing insulated plywood get to choose the R value that best suits their application. Standard rigid insulation R value is 3.5 per inch but can be upgraded to R 6.5 per inch. You determine the degree of thermal insulation required by your project, then customize your Sing panel’s thickness to achieve the results you desire based on your specifications.

Insulated Wall Panels

Sing Insulated plywood comes pre-constructed to be used as free standing insulated walls right out of the box. In many cases, builders who embrace Eco-friendly insulated Sing technology take full advantage of the natural reinforced torsion box structure to build structures that are completely frameless.

That’s right; Sing Panels are so strong that you can build enormous structures without the need for complicated framing structures, because the structure is built into the rigid insulated panels themselves making Sing Core’s insulated plywood one of the most advanced insulation materials that is expanding the imaginations of architects and engineers all around the world.

Insulation for Walls

insulation boards insulated plywood rigid insulation board rigid insulation r valueCertainly, there is no need to use additional insulation if you’re building your structure with Sing insulated plywood exclusively; but if you are shearing up the thermal insulation of a pre-existing structure, then Sing’s rigid insulation solution is right on track for a fast, long lasting solution for quickly and easily adding both strength and insulation in one easy step.

That’s why Sing insulated plywood is a highly sought after material for insulating and reinforcing basements and attics giving the designer or do-it-yourselfer 100 percent control over the wall insulation value and installing insulated interior wall panels has never been easier.

Insulation Boards

Because Sing insulated plywood can be custom specified, many builders are choosing to have their rigis Sing insulation materials pre-configured into insulation boards in 16” x 24” or 24” x 96” sizes to accommodate their building styles, increasing production time, dimensional stability and longevity over time.

One nice thing about Sing’s rigid insulation board, is that you can have them any way you want them; any length, any width, any thickness and more amazingly – Any Available Surface Material – for the most versatile insulated wall board available.

Insulated Plywood

Insulation Boards


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Stock Panels

Note: This is an archived page and is no longer available. For current information visit us online at:

4 ft. x 8 ft. Standard Sandwich Panels

stack-of-structural-marine-plywood-torsion-box-foam-composite-panels-yacht-buildersEven though Sing Sandwich panels are available in any size, any thickness and host any exterior surface, the following standard panels are regularly stocked sandwich panels and are our most popular honeycomb panels. These advanced composites are the most widely used for a wide variety of applications. Click here to see some of the vast uses of our standard Sing Sandwich panels.

Best use = Substrate
Sing Sandwich panels are best used as substrate for:


  • Solid as a rock
  • plywood can be bonded w/regular white glue
  • cold or vacuum press

How to Build

  • For more information on how to build using Sing Sandwich panels, Click Here
Product Total Thickness Grid Size Skin Thickness
Plywood 3/4 inch 2 in. x 2 in. 1/8 inch
Plywood 3/4 inch 3 in. x 3 in. 1/8 inch
Plywood 1 inch 2 in. x 2 in. 1/4 inch
Plywood 1 inch 3 in. x 3 in. 1/4 inch
Plywood 1.56 inch 2 in. x 2 in. 3/8 inch
Plywood 1.56 inch 3 in. x 3 in. 3/8 inch
Aluminum 3/4 inch 2 in. x 2 in. .032
Aluminum 3/4 inch 3 in. x 3 in. .032
Aluminum 1 inch 2 in. x 2 in. .040
Aluminum 1 inch 3 in. x 3 in. .040
Aluminum 1.56 inch 2 in. x 2 in. .063
Aluminum 1.56 inch 3 in. x 3 in. .063


foam-panel-guaranteed-true-flat-lightweight-strongCompare Sing Sandwich panels to other sandwich panel core materials.

Sing Core Foam Choice: Our stock sandwich panels feature extruded polystyrene as rigid insulation but may be upgraded to polystyrene to meet your specifications at an additional charge.

Sing Edge Option: Sing Sandwich panels have no solid edge. In the event that you require wood edges (or edges and/or implants of plastic or aluminum) Sing Panels would be better suited for your use.

Sing Sandwich vs. Sing Panel: Our regularly stocked and most in-demand honeycomb panels are our plywood panels and aluminum metal panels which are lightweight and stronger than steel pound for pound.

How to BuyMetal Composite Sing Core panels are true straight, light and strong.

To order Sing Stock Panels submit an order form either by email,, or print and fax it to: 360.495.4585. We’ll provide a quote within one business day. If you have questions, please contact us.

Easy Ordering

All we need to know is the length, width, thickness and what you desire on the exterior, and your custom specialty panels are made to order. Getting a quote for your specialty product, is easy, thanks to our simple online order system.

Bulk Discounts

If you’re looking for a bargain price, remember, the more you order, the less expensive your total order will be per piece. Quantity and wholesale inquiries are encouraged. Feel free to contact us for more information. Click here for Closeout specials.

Fast turnaround: In you’re in a rush, only Sing Core can be custom made within 24 hours and is proudly manufactured for you in the USA.

Fast delivery: Any thickness and almost any length, less than 5 ft wide, can be made with in 48 hours if it is rush order.

SINGCORE Stock Panels are easy to order. You may choose from our stock panels or order custom sized panels. Our price is based on the length, width, thickness, and quantity. Submit a Work Order by fax or email, and we will give you a quote within one business day. If you have a tight budget, give us a call, we might have an alternative solution tailored to your needs.