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The Importance of Lightweight Doors

Why Lightweight Doors Matter

When it comes to large, thick, or custom doors, weight matters a lot. A heavy door can be unwieldy, awkward, or hard to use. In addition, the heavier a door gets, the more complications can arise. These complications can range from minor inconveniences to major failures within the door itself, but regardless, they compromise the quality and function of your door. That’s why we suggest using Sing Core for your large or custom doors, as we make the best lightweight and strong door on the market.

Heavy Door Complications

It’s no stretch of logic to assume that the heavier a door gets, the more risk it poses in a variety of ways. Common issues with heavy doors include difficulty installing or using them, extra strain on hardware, and higher risk of injury. A large, hefty door may sound appealing, but when the mounting hardware bends or breaks under the weight, many things can happen. In the best case scenario, you have to take the door down and replace the hardware. In the worst case scenario, someone can get severely injured. In order to avoid this risk, you need to use heavier grade hardware, which can get increasingly expensive and difficult to come by depending on your door.

Light Door Solutions

If a heavy door causes many problems, then a light door should prevent them. Luckily, it does, and Sing Core doors are the best when it comes to keeping things light and strong. A lighter door has far less wear on its hardware, is much easier to install and operate, and can make the entire process of choosing and installing your custom or large door a lot more enjoyable. For one, you won’t need a team of 8 people to move the giant slab of wood. With a lightweight Sing Core door, you can often transport it with just a handful of people. Plus, with Sing Core doors, you don’t sacrifice strength for weight. Our panels are made with our patented and patent-pending honeycomb core, meaning they remain strong, sturdy, and guaranteed to never warp.

Large Doors

The biggest doors are often the heaviest, and that’s something else Sing Core is great for. Aside from just being lightweight, Sing Core panels provide additional securities when it comes to your large or custom door. The biggest concern with large doors is warping, as the larger surface area is prone to it. Sing Core’s honeycomb panels prevent warping, and we’re so confident in that statement that we offer a 50 Year Warp-Free Guarantee on all of our panels. A warped door can fundamentally ruin a door’s function, structural integrity, and more, and very few door makers can claim their product is free of that concern. Our warranty also promises the structural integrity of your door, so you also never have to worry about that.

Consider using Sing Core for your large, custom, or even standard door project. Interior doors, exterior doors, pivot, sliding, and more are all available through Sing Core.

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Big Aluminum Door

Patented Sing Core’s unique attributes enables us to make the biggest doors that are lightweight, extremely strong and Eco-friendly. Sing Core produces the only affordable solution to building a big door that can be guaranteed true flat… and will stay flat for lifetimes. Sing Core doors are pre-insulated and are resistant to climate change, bend, warp, twist, rot and insect threat.

big-aluminum-doors-37-foot-tallBig Doors for Your Big Expectations

Sing Core can help solve the challenges facing architects and designers. Obviously size is where Sing Core shines, but we also help solve other issues that face designers. Some of the functionality solutions that we help to provide include:


The larger a door becomes the heavier it gets. This can be a huge problem because these heavy doors cause strain on the structure and hardware. Lightweight big sing aluminum doors help to mitigate the damages of traditionally too-heavy-to-be-practical doors.

High Strength

There are other lightweight panels solutions that use honeycomb technology, but they simply do not have the strength, that is why the aerospace community is looking at Sing Core. Other lightweight composite core material used in aircraft are may not be heavy, but only weigh-in at 10-to-100 PSI, while Sing Core has been tested at 660 PSI, and could be upgraded to meet nearly any specification(s).


Green-eco-friendly-sing-coreIn this topsy-turvy world, Made in the USA Eco-friendly Sing Core is the true green building material that supports our commitment to make the world a better place for all of its inhabitants, while being the most significant, revolutionary new building material invention to be introduced in this century.


When compared to other materials, like other space-age composite panels, Sing Core is not only more environmentally friendly but costs much less that the others. Why not get all the added value and benefit of Sing Core at a fraction of the price?

True Flat

One of the problems of big doors, is that they tend to warp or twist over time, making a secure seal all but impossible compromising your project and calling for continued maintenance. Not so with your big Sing door, which can be customized to be true flat literally forever even under the most rigorous conditions.

Stay Flat

It’s one thing to install a big door, especially a large sliding door, and have it be flat when installed… but only a Sing Core big aluminum door will stay flat, virtually forever. This means huge savings in maintenance costs due to having the door’s flatness fail over time.


Sing Core’s big aluminum doors are all packed with insulation imbued with an R-value that saves energy, while offering sound dampening qualities. And these values can be custom-suited to meet your specifications for energy efficiency or sound proofing.


Your Sing big aluminum door is resistant to climate change and can handle the most extreme weather conditions per your specifications. Due to Sing Core’s unique vertical grain torsion box design these big aluminum doors are will not bend, warp, twist, rot or suffer damage due to insect or vermin assault.

How big can a Sing Door be?

To date, less than 50 feet for a single door panel is no problem… and we would certainly welcome the challenge of providing a solution that exceeds the 50 foot barrier.

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

To order Big Aluminum Doors submit an order form either by email, info@singhome.com, 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 Big Aluminum Doors 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.

Substitute Architectural Spec # 08 13 16 Aluminum Doors

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Sing Panel Q & A

Home -> Products -> Sing Panels -> Sing Panel Q&A

1) Are Sing Panels like other honeycomb core panels?

· Only in appearance. Other honeycomb panels do have a grid system, but generally the grids are left empty.

· Sing Panels feature vertical wood grain torsion box to form the grids. The voids are bonded and filled wall-to-wall with resilient recycled foam (a variety of foams are available to meet your specifications).

· Only Sing Panels are solid as a rock. (Warning: Do not kick a door made with a Sing Panel, you will break your leg before you break the door.)


2) What is the R-value of the Sing Panels?

· The R-Value of Sing Panels using EPS Foam is 3.5 per inch. The R-value of Sing Panels using Urethane Foam is 6.5 per inch.


3) How strong are Sing Panels?

· Very strong. In fact, they are the strongest affordable lightweight building material.

· They have been independently tested by the University of Washington to exceed 660 PSI, and can be custom designed to achieve over 1,000 PSI per your specifications.


4) Do Sing Panels have solid wood edges?

· Yes. Sing Panels feature solid wood (or other solid material) edges. If solid edges are not necessary, consider Sing Sandwich panels.

· The wood edge is visible between the exterior surfaces (or “skins”) on the edges. Edge-banding is available at extra charge.


5) What surface materials are available for Sing Panels?

· Our standard surface material is Luan (lightweight plywood).

· Sing Panels are available in basically any flat exterior building material and is limited only due to availability.


6) What thicknesses are available?

· Standard thickness of Sing Panels are 3/4 inch to 8 inches thick.

· Custom thicknesses are available to meet your required specifications, up to 12 inches and beyond.


7) How big can you make Sing Panels?

· Standard sized Sing Panels are 4 ft. x 8 ft..

· They are available in any dimensions, up to 22 ft. by 40 ft. or larger.

· Note: When ordering oversized Sing Panels be certain to confirm that the panels that you order will meet your performance specifications.


8) Are Sing Panels weather resistant?

· Sing Panels are lightweight, high strength and weather resistant only to the degree of the surface material.

· Sing Panels can be manufactured to withstand the most extreme weather conditions, and are even used in underwater applications (consult with Sing sales staff prior to ordering waterproof Sing Panels).


9) Can Sing Panels resist the heat of powder coating?

· Yes. Sing Panels can be designed and manufactured to withstand the heat of powder coating.


10) Can I bond other materials to the surface of Sing Panels?

· Yes. Many of our high-end millworks adhere other surface materials to Sing Panels when used as substrate.

· Standard Luan (lightweight plywood) surfaces are easily adhered to with regular carpenter glue and cold-pressed.

· If your intention is to laminate other materials to your Sing Panels, you should check with us first, to make sure that you are using the proper bonding agents) to achieve the results you desire..


11) Can I use Sing Panels to make furniture?

· Yes. In fact many leading edge furniture manufacturers are joining the Sing Panel revolution. See: Sing Furniture.


12) Can I hot press Sing Panel?

· Yes. We just finished up a 40 run of hot-press veneer for one job. Tip: When using a wood veneer, some warping could occur. Our expert staff encourages adding a thin later of aluminum between the core and the skin.


Sing Core mission statement: To make life easier, Sing Panels are simple to build with, simple to use and are built to last and this makes them beautiful, so Simple is Beautiful.