- Stronger than Steel T Slot Panels
- Quick Assemble T Slot Panels
- Portable T Slot Panels
- Sound Deadening T Slot Panels
- Modular T Slot Panels
- Sing T Slot Panels
- Lightweight metal roofing demo
- Metal-Skin Sing Panel Exterior Sliding Door
See Also: How to Build a Big Door
Sing Core makes the most dimensionally stable, eco-friendly aluminum doors that are used by the most prestigious millworks and high-end users. Only Sing Aluminum doors can be large, thin and extremely flat.
The beauty of Sing Aluminum doors is that they can be any height, any width, any thickness and can be manufactured in as little as three days. Sing Core doors are available in any size or shape per your specifications and specializing in large oversize doors are available in lengths and/or widths up to 50 feet.
The advantage of fusing the Sing Core material with aluminum, is that is nearly impervious to changing weather conditions and retains its true flatness and structural integrity over long spans.
But Sing Aluminum doors don’ t have to look like aluminum doors at all, because the aluminum can be part of the substrate which can host nearly any exterior material.
Some examples of exterior materials that we have made large oversize Sing Aluminum doors out of include:
aluminum (there are many varieties)… including ballistic materials for bulletproof applications. The possibilities are limited only to any available flat building material.
For the last few years, this emerging aerospace technology has been providing solutions to architects and designers that is top drawer, to say the least. The best-known, oldest, most reliable, high-end millworks in the United States depend on Sing Core to deliver the goods for them when it comes to true flat aluminum doors.
This technology is solving heavy metal door design solutions for Presidents, Prime Ministers, Kings and the Pope, especially when the application calls for extra strength, oversize or true flat… without compromising weight for strength.
Sing Core is the only door manufacturer that can create aluminum doors that are true flat over long spans, and will not warp, twist or experience extreme deflection under stress. And, thanks to the lightweight properties in comparison to other solid materials available, Sing Core aluminum doors are lightweight, causing less strain on the structure and hardware, even though the size may be very large.
Years of working with the most demanding high-end clients has helped us understand unique requirement to guarantee true flatness of any Sing Core aluminum door. This does not mean that every oversized Sing Core aluminum door is guaranteed to be true flat under all conditions. But we can design the perfect Sing Core Aluminum Door for your specific requirements and guarantee it.
To achieve our true flat guarantee, all you have to do is to provide us with the size (up to 50 ft), the thickness, surface material desired and the intended use for your Sing aluminum door, and we will design for you a door that will meet and exceed your specifications. Take advantage of our expertise and years of serving the most high-end clients around the globe.
Why Use Sing Aluminum for Door Substrate?
The primary advantage of Sing aluminum doors for the basis of any door is that the Sing Core aluminum door is lightweight, exudes superior strength and can be guaranteed true flat. Now, here’s the exciting part: almost any surface material can be added to the exterior of a Sing aluminum door to create the appearance (or match the appearance) of your structure.
By using this as the substrate of your door, you can create a door of any size (even over 10 feet tall) that is resistant to warp, twist and rot that can be structurally guaranteed for up to 50 years.
How to Coat your Sing Aluminum Door
Sing Aluminum Doors are so versatile, they can easily be painted, just like any other door. For successful painting use an etch primer, just like you wood any normal wood primer. The etch primer has an acid compound that etches itself into the aluminum, so no pre-sanding is necessary, follow-up with the same procedure for painting any other primed door. Of course, you could always add another surface layer of material to have any appearance you desire.
How to Cut, Rip or Trim your Sing Aluminum Door
Many of our clients order Sing Aluminum Door blanks by the truckload. These are basically unfinished, and the finishing, hanging and hardware is done by the client.
In the beginning, one might have concern over working with an aluminum door blank as opposed to a wood door blank in the wood shop that is customarily used for prepping the doors. The good news is that Sing Aluminum Doors can be cut, ripped or trimmed using standard woodworking equipment, There is not need to change saw blades or any other equipment in your standard door shop.
Our standard aluminum doors also offer superb sound deadening qualities and our eps foam offers a 3.5 R factor per sq inch of thickness. Other R-factors available upon request per your specifications.
Door finishers work with Sing aluminum doors just like any other wood doors. No special handling or extra tools are necessary to accommodate the installation of your Sing Aluminum door.
Click here for more information on Sing Aluminum and other Metal Options
To add solid wood grain to the exterior of your Sing aluminum door requires bonding plywood or MDF in-between the aluminum and the wood grain material.
For paint-grade aluminum finish, simply use an acid etching primer.
Click here for other Sing Core Doors
Sing Core makes the revolutionary fiberglass (FRP) doors that supersede all other fiberglass doors while being lightweight, stronger than steel and eco-friendly. Sing Core Aluminum Doors reduce strain on hardware and structure minimizing maintenance costs over time.
Sing Core doors are available in any size or shape per your specification, in lengths and/or widths up to 50 feet. Sing Core specializes in large oversize doors.
Working hand-in-hand with architects, designers, contractors and end-users, Sing Core FRP (fiberglass reinforced plastic) doors helps to solve the structural challenges often associated with fiberglass-work, while maintaining the highest levels of structural integrity and minimizing construction and maintenance costs.
Our aluminum doors also offer superb sound deadening qualities and our eps foam offers a 3.5 R factor per sq inch of thickness.
Our unique Sing Honeycomb Core is what makes our product so DIFFERENT from other honeycomb manufacturers because our core isn’t just foam but it is our vertical grain grid system and recycled EPS foam merged together to make a product that is 1/3 or more lighter than standard plywood products of similar size and thickness.
Our Aluminum Doors are not only light but strong, in fact, stronger than steel lbs for lbs and can be guaranteed true flat.
Applications include:
Equipment enclosuresFor more information see Sing FRP & Plastic and other Sing Core Doors
See also: FRP Specs (Glasliner) (.pdf)
Other Sing Core solutions can be found as other building materials.

Sing Core is the top choice of discriminating home owners and high-end users making the switch from overhead doors to carriage doors who demand elegance and superior performance.
Sing Core Carriage Doors are imbued with unique characteristics that separate them from any other commercially available standard carriage door in the world. For instance,
Sing Core Carriage Doors are available in outswing (standard), inswing, overhead, barn door and sliding door configurations to meet your individual requirements and specifications.
Sing Core offers a variety of surface materials to suit your individual tastes or to match the appearance of your classic design.
Due to their superior strength and load capacity in comparison to carriage doors made of other materials, Sing Core Carriage Doors are keenly suited for extreme weather conditions including temperature and humidity variations, storm and hurricane resistance*.
Regardless of your choice of exterior material (i.e. wood or steel), windows can be designed, cut and installed to match the overall appearance representation that you desire in your new garage door.
Sing Core Carriage Doors are the perfect adornment for your garage, studio or barn, giving you an unsurpassed aesthetic appeal while being functional and extremely structurally superior.
Each Sing Core Carriage Door is a precision garage door that is handcrafted in the USA and custom built to your specifications.
While capturing the beauty of century old carriage doors, Sing Core Carriage Doors are a fusion of old world technology and space-age technology to create a carriage door that is brilliantly adaptable, functional and will last for centuries.
Save Money
Sing Core Carriage Doors are the economically sound buyer’s choice for so many reasons, but have many ways to save you money. For instance,
Transportation and installation of your carriage doors is easier and less expensive due to weighing so much less than others.
Being lightweight also means less strain on the hardware and structure with normal use.
Our pre-insulated carriage doors save you heating and cooling costs of your interior space.
The high-strength, true flat and long-life attributes, means less maintenance costs over time.
Sing Core Carriage Doors are competitively priced in comparison to other carriage doors. Why not take advantage of owning a superior end product, with all the added value of Sing Core without having to compromise your expectations, and are available in large, oversized doors.
Sing carriage doors vs. other overhead garage doors
Many people are making the change from overhead garage doors. Ask your overhead garage door company about Sing Carriage Doors.
Take advantage of this new technology increasing sales and profit by increasing value-added benefits and features, while decreasing costs and overhead.
Functional Sing Core enables the door manufacturer to build a similar or better than a high-end entrance door. Sing carriage doors are fully insulated, sound deadening, true flat, air tight, lightweight and super strong (backed by a 10 year structural guarantee).
Easy to Build and Install Sing Core carriage door is lightweight, strong, true flat and works with regular hinges making it easy to move and install. When we first introduced Sing carriage doors, we attracted many DIY end-users who embrace the do-it-yourself philosophy that is becoming more of a trend. Highly successful results were enjoyed by these non-wood working trade professionals. If they can do it, so can you.How to Build a True Flat Long Lasting Carriage Door
Wood-based carriage doors are exposed to a variety of weather conditions, glaring sun, wind and rain and it is important to keep the surface primed and coated to make sure that it does not crack while exposed to weather. Sing carriage doors prolong functionality of surface treatments due to being made with patented Sing Core’s torsion box structure that holds the wood surface to maintain a forever flat surface without twisting or cracking.
You may further weather-protect – even for withstanding the most severe weather conditions – by integrating other material into the surface of your Sing carriage door. Surface skins of aluminum, FRP or stainless steel will not crack like natural wood or plywood to prevent compromise of your Sing carriage door.
If you like the look of solid wood but seek high-performance and longevity, you can use Sing aluminum as your true flat carriage door’s substrate, you will be able to maintain straightness of your doors making them less likely to crack due to movement cause by expansion and contraction of the wood surface material.
See how Sing Panel’s torsion box structure prevents surface crack because of the patented Sing Core’s unique characteristics. To keep your carriage door true flat is a challenge for solid wood or even plywood. Sing Core and Sing Panel master true flat technology for very high-end doors requiring less that 1/16 inch deflection which is more costly.
Sing carriage doors far exceed the AWI industry standard or ¼ inch deflection to be considered flat.
Imagine: No more overhead garage door repair needed.
Though Sing Core Carriage Doors can be customized to any specification,
an example of our standard Carriage Door would be:
• 2 inches thick w/composite sandwich composition
• Can feature any standard exterior overlay
o Wood veneer (variety to specs)
o Solid Wood stave (any available wood species)
o Plywood
o Moisture resistant MDF
o Fiberglass / FRP
o Aluminum
o Stainless Steel
• Built-in insulation
• Paint grade
• Standard height/widths (8 ft. or less)
Sing Core carriage doors are distributed by the most prestigious garage door companies.
*Customer will need to perform lab tests to certify hurricane rating for local code compliance.
We’re so enthusiastic about helping our clients achieve the results that they desire, especially in terms of superior strength and lightweight. Bring your architectural or design issues to Sing Core and we will help you overcome your challenges with stellar results, guaranteed.
Thanks to our happy clients and customers who continue to share their photos with us. If you would like to send your favorite Sing Core picture, to us, simply attach to an email to info@singcore.com and we may include your creations also.
SECTION 08 14 00 – WOOD DOORS
PART 1 – GENERAL
1.1 SUMMARY
1.2 SUBMITTALS
1.3 QUALITY ASSURANCE
1.4 DELIVERY, STORAGE, AND HANDLING
1.5 WARRANTY
PART 2 – PRODUCTS
2.1 MANUFACTURER
1134 N Summit Rd.
McCleary, WA 98557
2.2 MATERIALS
2.3 PERFORMANCE REQUIREMENTS
PART 3 – EXECUTION
3.1 EXAMINATION
3.2 INSTALLATION
3.3 FIELD FINISHING
3.4 ADJUSTING AND CLEANING
Receiving Instructions and Maintenance
Receiving Your Shipment
Inspect Before the Driver Leaves
Failure to document damage at delivery may void freight claims.
Delivery Planning and Unloading
Arrival and Storage of Sing Products
Upon Arrival
Temporary Appearance of Warp
Acclimatization Procedure
Proper Storage
If doors must be stored stacked
• Wrap in plastic
• Place plywood sheets underneath and on top of the stack
• This helps maintain even acclimatization
Jobsite Conditions
Fabrication
Safety
Blocking and Machining
Failure to seal machined areas may void the warranty.
Finishing Requirements
General Requirements
Surface Preparation
Timing
Finish Quality
Sun Exposure and Color
Exterior Overhang Requirement
All exterior doors must have a sufficient overhang.
Minimum requirements
• Overhang depth must equal half the distance from the bottom of the door to the underside of the overhang
• Overhang width must extend half of that same distance beyond each side of the door
This protects the door from weather exposure and is required for warranty eligibility.
Warranty-Critical Notes
Customers are responsible for notifying Sing Square Log Home Inc. in writing of all finishes and skins applied.
Maintenance
Sing Core partners with architects to help bring their creations to life. In many ways, Sing Core would not have its place in the building materials industry, if not for concerned and creative architects looking to push the envelope of contemporary designs. Assisting architects is the backbone of the Sing Core model.
We are so excited to work hand-in-hand with our architects as they develop one-of-a-kind creations ranging from single-person dwellings to enormous skyscrapers; and when it comes to oversize, no one makes an Eco-friendly composite building material that compares to Sing Core in terms of lightweight, strength and true flat.
How Lightweight Is Sing Core?
Everyone knows that Sing Core builds the largest doors that are lightweight, super strong, will not warp or twist and are true flat. For instance our largest doors weight-in at 2 lbs per sq ft. Compare that to any other material that would be 3-to-4 times the weight, and would not have the structural integrity or benefits of the Sing Core door, including less added stress to the hardware & structure.
How Versatile Is Sing Core?
Think about it; a door is merely a plank. Lay it down and it becomes a floor, raise it up and it becomes a ceiling or loft, on its side a wall; all with built-in structural framing and insulation. Cut it into stair treads or rip it into shelving or any size lumber that you might need on-the-fly, and it is also available in posts and beams. Not to mention the wide variety of surface materials that are available to give you the aesthetic, strength or true flat attributes that you desire, leading to endless applications.
See: True flat 25 foot oak conference table as an example.
Surface Material Options
Speaking of the many skin options, we work hand in hand with you to get you the product that you want. For instance, if you want your project to look as though it was built using solid wood, we can cover the material in any wood species in almost any thickness to meet your expectations. We also have used other materials, like aluminum, ceramic, concrete, glass, fiberglass, metals, plastics, steel, even fire-resistant mag-board and bulletproof Kevlar. You dream it, we will help you execute it and bring that dream to life.
Easy to Spec
Using Sing Core in your spec is as easy as 1-2-3 using our online price quote. Price is based on three things: Height, Width and Thickness. And Sing Core can host any flat building material including (but not limited to) concrete, fiberglass, any metal or wood species, just to name a few. Other options include surface material (or skins) to help bring your designs to life as it can host any flat building material to acts as an external skin to provide the specific attributes that you seek to deliver.
How Economical is Sing Core?
Besides being inexpensive in comparison to other high-tech aerospace composite materials, Sing Core saves money in many ways, including shipping and transportation costs, reduction in labor costs and on-the-job injuries and saving on supporting structures and substrates because Sing Core has built-in structure and is also an extremely strong substrate material. There is no need to insulate due to being pre-insulated providing an effective R-value of insulation (depending on your recommendations or requirements) and also has inherit sound-deadening qualities.
How Strong Is Sing Core?
In fact, Sing Core is so strong that it is the only composite material with enough brute force integrity to create structural posts and beams. Compared to equivalent aeronautic composite material Sing Core is at least ten-times the strength of these material at much less cost per square foot.
10 Year Guarantee
Sing Core’s strength and performance is so superior compared to other traditional building materials, that it is confidently guaranteed both for structural integrity and true flatness for a full 10 years. Likewise, with any product that is manufactured by Sing Core, the entire item is guaranteed.
Sing Core Installation & Execution
Installation and use of Sing Core is trouble-free and your contractors and mill works will thank you for inviting them to work with this revolutionary material. Being so lightweight makes it extremely easy to handle and transport, and it is easily finished or modified on-site with no special tools or skills as it is treated just like plywood, yet is lightweight and strong.
Made in the USA
Sing Core is made in the USA, proudly manufactured at our facility in McCleary, Washington.

We are the world’s best large door manufacturer in the world, our inventor Peter sing has a heart after the Tiny House market and is helping the Tiny House community to build Tiny Houses that are
If you contact us about your intentions before the end of the year, you can lock-in this holiday promotion price saving you 1/2 off our regular low price. We even have a convenient layaway offer.
1 Easy to build
Individual panels will function as siding, insulation, structure, and interior wall. These panels are engineered to maximize your interior space by being thin, yet stronger than steel pound for pound using patented aerospace technology, so you don’t lose interior space. Preferably the entire structural wall is made of 4 pieces. One piece floor cover front to the back, depending on your roof design, one or two pieces for the entire roof.
Don’t Be Framed: Upgrade and the structural frame is built into each pre-insulated Sing panel.
Is this possible? Yes: Click here to learn more and learn how to build your Tiny House the best way.
Your Tiny House will cost less to ship the raw material, easy to construct, and cost less gas to haul places to places, easy to manage and construct with a single person. And constructed out of 6 or 7 pieces made to order, so your Tiny House can have any dimensions. Your individual panels will be custom made for easy assembly.
3 High strength
The Tiny House will be long lasting in the heavy wind and feel secure like a home in extreme weather conditions during hurricane or heavy rain. Made of only 6 or 7 pre-framed pieces makes your structure even more solid as a rock.
4 Eco-friendly
Sing Tiny House panels use renewable material and consume less energy to create, take less energy to heat in the winter and cool in the summer.
It should looks perfect true flat from exterior and interior to show the precision engineering master pc of crafted design.
6 Cost effective
It takes less labor and material to build—a nice tiny house should take less than one month to complete and less than $5000.00 to complete.
Are there any Tiny House systems that will meet the above criteria?
Only one – and it’s On Sale Now at 50% Off!
5 Minutes to Build |
Sing Shelter |