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The Garage Door Solution

Sing Core Garage Doors

The most common problem for garage doors is the continuous exposure to the outdoor elements. Which subjects one side of the door to daily changes in temperature while the other side sees a constant interior temperature. This is where a solid wood garage door would fail and crack due to the wood expanding and contracting inside the door. This is a major flaw which requires frequent maintenance, such as repainting and resealing to prevent water damage.


Now with a Sing Core door, a garage door can have any skin from metal to old growth Douglas-fir.

Aluminum and metal skinned

Aluminum is a great option for sliding barn doors. The aluminum produces a lightweight and strong finished product. To seal metal and aluminum doors from the elements we have discovered the perfect solution, vinyl wrap.




Vinyl Wrap

Vinyl wrap will adhere to any door’s surface. The glue will seal out any moisture. The vinyl is fully customizable to any design of your liking and will provide full UV protection of your door. Learn how to build a true flat long lasting carriage door here.




Wood Skinned

The best choice for a wood garage door is AB plywood or marine plywood. There’s no need to worry about the plywood cracking with the inclusion of proper finishing when using Sing Core thanks to our patented and patent-pending torsion box “honeycomb” design. This is why they are used on our Sing Core homes.

Wood Stave

A superior addition to any door is to add wood stave to the face. Our most common wood stave products are clear cedar and douglas fir. With wood stave applied, the door looks like it’s made of solid wood.
Unlike a thin .020 wood veneer; wood stave can be sanded and repaired if damaged. Making wood stave a more durable solution to high traffic areas or commercial applications.
Does your customer need a rugged wood stave skin or a thin veneer? Ask one of our knowledgeable sales engineers about the pros and cons of different skin options and they would be happy to walk you through your options.

1/8″ wood stave is all that is necessary to make your door look like it is made completely out of solid wood. But the secret inside is that your door is exponentially stronger and more stable than a standard solid wood door. Your Sing Core door is also almost a third of the weight of a comparably sized solid wood door. Being lightweight expands the choices of hardware, reduces labor costs to install, and is safer in inclimate weather. This applies to all doors with Sing Core inside; pivot doors, sliding doors, pocket doors, carriage doors, bi fold doors, and other doors with unique hardware configurations. Learn more about wood stave here.

Large Pivot Door 126.5 x 60 x 1.75 White Oak High Strength Straightest Lightest in the Industry


We have a very large inventory of wood stave in stock. We will sell the wood stave by the square foot and have a wholesale option. Wholesalers are eligible for discounted pricing on wood stave lots. Contact our sales team for details about wood stave lots here.





Below are a few of the other examples of garage/barn doors we make.

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Upgrade Your Garage Door with Sing Core

Upgrade Your Garage Door with Sing Core

Garage doors are one of the most difficult, yet necessary parts of a garage. Whether they are sliding or folding, up and down or side to side, they serve an important purpose in the safety and security of your home.

Why are Garage Doors so Important?

Garage doors serve as the final layer of security between your vehicle and the outside world. In addition, most garages connect to the house by a simple door, which is often left unlocked or unsecured. This means that a simple sliding door is all that stands in the way of anyone attempting to enter your home. Many garage doors are incredibly thin plastic or sometimes metal, and are incredibly easy to get through.

These thin garage doors also offer very poor insulation, meaning if your garage is heated, you will watch your heating bill skyrocket as all that hot air leaks right through the door.

For these reasons, we recommend upgrading your garage door with a Sing Core product.

Why Sing Core?

Sing Core’s patented door panel design is the industry leader in custom, lightweight, and sturdy doors. They are lightweight enough to easily function as a garage door, whether folding, sliding, or otherwise, and provide incredible insulation during the winter months. Instead of wasting money by heating a cold garage with an inferior door, a Sing Core product helps keep that warm air inside, lowering your heating bill and making your garage significantly more enjoyable.

In addition, Sing Core products are incredibly easy to repair, and when repaired return to their full strength. This means that if you ever damage your garage door, you’re more likely to be able to simply get it repaired as opposed to having to buy a whole new product. Even this situation is unlikely, however, as Sing Core panels have a 50 year quality guarantee, so if your product ever fails on you, you can rest assured that we’ll make it right.

Does Sing Core Help With my Home’s Security?

It does! While standard garage doors are often thin, flimsy, and overall lacking in the strength and durability required to act as a secure door, Sing Core products are incredibly sturdy, and you can mount additional locks and other hardware as needed to guarantee a secure entrance into your garage, and possibly home. In addition, Sing Core products are stronger pound for pound than steel, meaning your lightweight and easy to use door is still incredibly durable, and won’t simply chip away or warp on you.


No matter what time of year it is, garage doors are constantly showing their faults. Whether it be poor insulation, poor security, or simply poor functionality, they are an annoyance that many of us have to deal with daily. Installing a Sing Core product for your garage door not only remedies the issue of insulation and strength, it also gives you the peace of mind to know that you garage and home are safe, and your custom door will last you for decades to come.

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The Most Insulated Airtight Lightweight Strongest Door

Any door built with SingCore inside could be the most insulated, airtight, lightweight and strongest door in the world, thanks to patented SingCore.

Carriage doors are shipping to nostalgic homes in San Francisco, Green Lake, Seattle, Puget Sound and similar residential areas around the USA to make better use of extra garage space for converting to extra living space.

bi fold garage doors 16x8 garage door automatic garage door opener

See more about these Bi-fold Garage Doors
If you’re garage plans include looking to convert your garage into livable space, garage apartment, work shop, guest room or even an office, then you need to replace your current garage door with a patented SingCore carriage door. The most airtight door in the world can be fully guaranteed for structure strength and to remain warp-free for 50 years. No other carriage door is so lightweight, nor do they have the highest strength.

1. How Do You Do It?

See: How to Build a Sing Door

2. Why SingCore doors are the best choice for your garage door if you’re looking to convert your garage to a livable space:

Patented SingCore is changing the technology used and how to build a door with insulation for garage door. It starts with the successful story of building a high end door for a Manhattan penthouse.

SingCore door panels offer the best guarantee in the large door industry: 50 Years Warp-free and Structure Guarantee

If you are in the high end large door business, you know that no manufacturer wants to make a large door due to potential problems with warping. All the doors made of wood base core or skin are going to warp, it’s just a matter of time; sometimes within a month following the door installation compromising the garage door weather seal.

SingCore uses a combination of patented and patent pending large door technology to keep your Sing precision garage door straight and true, which keeps your garage with apartment plans air tight. Maintaining weather seal is so important for your garage with living space.

Garage doors deal directly with weather conditions, which is the primary reason for distortion in your garage door. Whether it’s a carriage door or overhead garage door, it’s almost impossible to keep it airtight due to their natural design and characteristics.

If you’re looking for a warm or cool garage conversion maximizing extra space for your comfortable living garage with apartment, SingCore garage door is the only choice, guaranteed by inventor Peter Sing.

3. How to design Sing carriage door

Special or custom order your Sing carriage door by filling out the order form (you must be in the trade or hire a trade professional to order it for you).

a) Design Look. Begin with surface design and by adding molding to create any type of appearance. Add glass or light treatment, cut Sing sandwich or Sing panel then add glass

b) Skin Choice. Very lightweight and weather proof skin will be 1/8 inch marine plywood, aluminum, FRP, HPL, etc…

c) Choice of Thickness

d) Strength Thickness of Sing Panel: Doubling the thickness will increase 4 times the strength. Standard thickness of sing panel is 1.5 inch and 2 inches but custom size thickness is almost unlimited

e) Edge Treatment. Sing sandwich panels are easy to cut to any size as well as adding the trim to create a solid edge to adapt to any size of door opening. If ordering Sing panel, the standard edge is 1.25 inch solid wood but with extra money you may order any size of solid wood on 4 sides of Sing panel

f) Size Limit of Sing Panel. Almost no limit for height and width of any Sing carriage door. Tell us the size and we will prove it to you

g) Window Light Cut Out. You may install any shape and almost any size of window at any location of the Sing door panel. (see pic.)

h) Man Door. We could provide man door cut off and install a man door in the Sing door panel for your easy access of the garage space without open the entire garage door.

I) Hard Point. Solid wood implant.


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Overhead Door vs New Garage Door

person-carriage-door-garage-sing-coreIf you are in the business of overhead garage door or any type of door business then this new garage door is an opportunity for you. The reward can be win-win for you and your customer.

The problem for overhead door and traditional carriage doors vs. Sing garage panel door

Everybody wins by switching to patented Sing Core.

The trend is 90% or more or garage doors are light duty metal or vinyl overhead doors. Traditional carriage doors cost at least 4 times more than those metal or vinyl garage doors. Now the patented Sing panel garage door with its small price tag and endless features for your customer means the end user gets a better product for less money.

Price Insulation Air tight Lightweight Strength Low maintenance Security
Sing Core
Overhead Door x x x x x x
Carriage Door x x x x x x x

The 7 Wonders of Sing Garage Panel Door are:

  1. Price. Sing Core panels cost about 87% less than carriage doors, yet comparable to inexpensive overhead doors in price.
  2. Insulation. Pre-insulated Sing garage door panels protect you from the elements and are sound-deadening.
  3. Air tight. Sing garage door panel maintain their seal because they are resistant to warp, bend and twisting.
  4. Lightweight. You don’t need expensive heavy duty hardware because they weigh one-fifth the weight of traditional carriage doors.
  5. Strength. Compared to other composite core materials (that range from 10-to-100 PSI) Sing garage panels weight in at 660 PSI (stronger than steel pound for pound.
  6. Low maintenance. Because they are lighter in weight and do not warp, bend and twist, you don’t have to worry about garage door repairs.
  7. Security. Your new design (if based on carriage door design) is harder to breach than simple overhead door design.

Overhead door

Overhead-Door-Panel-is-StrongThe overhead door is so popular due to mass production with thin gauge metal at low cost, even so we see many overhead door companies utilizing the Sing solution in their designs.

This is what most of American homeowners are looking for even it is easy to dent. If you use your garage as a shop or living space it has little or no insulation. Even if it is well insulated overhead, there’s virtually no way to make it air tight like carriage door. The good news is the sing carriage door is low cost and can be the new standard of garage door.

The revolutionary solution for overhead door.

Carriage door

CarriageDoorPanelsUnfinishedThe carriage door is the way American home’s garages used to be made before overhead doors become popular. But due to the high price, heavy weight and not being insulated well and warping leading to air and temperature leaks – especially in the winter due to the movement of the wood (low temperatures made wood carriage doors shrink and summer heat make the doors  expand).

The biggest concern about carriage doors is that they are too expensive. You could spend over $4,000.00 for a 8 ft x 7 ft carriage door and over $8,000 for a 16 ft opening garage door, but none of those framed carriage doors will be easy to install due to the heavy weight and if they’re not perfectly straight. If it warps then it will leak the air and many times even otherwise adequate gaskets cannot stop the air leak.

Sing Panel Garage Door

For garage dealer or distributor:

High profit margin (selling one set of Sing carriage doors will make more money than selling 6 overhead doors, still making the customer happy, because they will have paid less than half of the traditional carriage door).

For garage door manufacturers

You will love to Sing… We will supply you the Sing Core to build better, stronger, lightweight garage doors. Sing Core is available at low price if you could order by the truck load – or even better – we might be licensing to you to build garage doors out of Sing Core.

Patented Sing Core is a true green Eco-friendly product. It is good for the earth and any creatures above and beyond.

There are many other applications for Sing Sandwich and Sing Panel.

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More People Switching from Overhead Garage Doors to Carriage Doors

How to Design Order and Build your Carriage Door

We are celebrating the wave of people who are making the change from standard overhead garage doors to the more elegant, energy efficient, lightweight, high-strength and Eco-friendly Sing Carriage Doors.

We also appreciate the garage door industry, especially the overhead garage door professionals, who have become our distributors or recommend patented Sing Core Carriage Doors to their customers. More people are converting their garages into livable spaces such as work shops, office spaces, guest rooms or even an extra bed room that need an air tight alternative to conventional overhead doors.

Sing Carriage Doors offer more features than regular solid wood carriage doors.

  • Air tight carriage doors guaranteed lightweight high strength true flat long lifeTrue flat & stay flat
  • Lightweight (use regular hardware)
  • High-strength (stronger than steel)
  • Less Expensive
  • Insulation
  • Air-tight
  • Sound-deadening
  • Long life
  • Crack, warp and rot-proof
  • Available in any material
  • Any size (including large, oversize)

Why do more door companies use Sing Core?

  1. More Skin Selections such as wood, plywood, aluminum, FRP, stainless steel, ceramic, magnesium board
  2. Fast Delivery stock items could be shipped within two days
  3. large-lightweight-high-strength-garage-carriage-doorsMade in USA proudly manufactured at our facility in evergreen Washington State
  4. Easy to Install and less cost to ship than solid wood carriage door
  5. Light Weight You could use average door hinge hardware
  6. More Versatile You could build bi fold garage door without worrying about the settling problem (see photo right)

We guarantee any Sing carriage door to be stronger, lightweight, insulated, and more long-lasting than any equivalent carriage door.

Surprisingly, due to our high-performance material and factory, we are able to produce these superior carriage doors with much less labor, energy expended and less material and/or waste. It’s what we do, and we do it better than anyone else. That’s why we are proudly able to sell our American-made, Eco-friendly carriage doors for much less.

Plus you get all the benefits and advantages that are not available elsewhere, due our patented Sing Core and superior manufacturing methods.

Whether you’re an existing door company or a home owner we will treat you with the same attention to detail, while providing the best solutions, especially in terms of lightweight, high strength, true flat and Eco-friendly Sing Core.

Overhead door vs New Garage Door

With our patented SingCore doors, not only is the price tag smaller, but the durability is much better. Click here to find out more.

Imagine: No more overhead garage door repair needed.

Sing Core carriage doors are distributed by the most prestigious garage door companies.


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Garage Doors

Peter was inspired recently to find yet another use for Sing Honeycomb Panels. We’re launching a line of insulated panels for overhead garage doors. He noticed that too many nice homes have dinged up garage doors. It’s because garage doors are expensive to repair. You don’t want to replace a panel for a golf ball dent, so you let it go until the damage is beyond cosmetic. Soon, you’ve run into the garage door with your car or time has made the edges drafty, so you shell out a fortune to have it repaired in a hurry. If your door had been more sturdy from the start, you’d be on a mini vacation.

No more dented metal garage doors

No more dented metal garage doors


This also raised the question, why so many dented doors? They’re mostly made of steel, which is strong, right? Well, I was wrong about that too. The steel used in garage doors is extremely thin, so it doesn’t get the strength we expect of steel. What can we do? We need durable doors. They’re the first defense for our home. How many times have you heard of a break-in through the garage?

Sing Honeycomb to the rescue! Our insulated panels are going to revolutionize the garage door industry. Lowe’s carries DIY insulation kits, but that won’t repair the dents and air gaps. When it’s finally time to replace the garage door, Sing will be there.We use insulation foam to support our cores. We use a veneer torsion box grid embedded in the foam sandwich core to make our panels strong and unchanging. I’ve hit them with 30lb kettle bells with not even a mark. We’re looking into the most common measurements for garage doors, and we’ll test the water this summer during remodel season. This can be huge. The garage no longer needs to be drafty and dented.
Wood sectional overhead garage door

Wood sectional overhead garage door

We’ll also need customers to share their photos and successes with us, so be one of the first owners of a new Sing Garage Door, and possibly earn a marketing discount.
See the video of Peter breaking a regular hollow core door: