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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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Carriage Doors

Applications -> Building Components -> Doors -> Carriage Doors

How to Design Order and Build your Carriage Door

unfinished carriage doorSing 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.

carriagedoorsSing 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.

Sing-Core-Carriage-DoorsBeing 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.

  1. rob-Bi-fold-1-openFunctional 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).
  2. Replace Overhead Doors Many people are switching over from overhead doors to more elegant carriage doors, especially when converting a garage to a work shop, office space or even an extra guest room. Sing carriage doors can be air tight, effectively securing your space for heating in the winter and air conditioning in the summer. Sing Core is made of 90% foam and structure torsion box grids. Sing doors do not expand or move like solid wood carriage doors. This prevents the door from expanding due to the moisture and temperature change which can lead to air leakage or becoming too tight to close the door securely.
  3. Visually Impressive Compared to other garage doors and other carriage doors, sing carriage doors are true flat which will be easy to add design molding, various surface skins and/or textures, design and color detail by adding wood trim or molding. The resulting door is beautiful, enhancing the structure with unparalleled exquisite detail that remains close and tight over time without sagging even after years of use.
  4. Low Cost Carriage doors are the choice of high-end users and come with an equally high price tag. In comparison to overhead garage doors, customers will often choose the Sing carriage door because they cost less, yet are high-end, more attractive and function better than other garage doors. Once you consider the added cost of metal overhead doors, hardware and opener, Sing carriage doors are much less expensive. Our garage door companies reduce their costs while delivering more for their clients without sacrificing profit margin.
  5. Air tight carriage doors guaranteed lightweight high strength true flat long lifeEasy 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.
  6. Easy to Market Obviously the high-end design and appearance of Sing Carriage doors are the key to engaging homeowners, clients and customers visually. But when you throw in all the added benefits, like, increased functionality, higher quality, sleek and styled appearance, increased lifespan, then you surprise them with a price-tag that is a fraction of a metal overhead or other type of garage door… it’s an easy decision.
  7. Wide Variety of Surface Material Options Sing carriage doors have the largest selection of surface materials to accommodate any look, feel or design of any project. For instance, more popular door skins for Sing carriage doors include: wood, plywood, moisture resistant MDF, aluminum, stainless steel, FRP (fiber reinforced plastic), etc…
  8. Less Maintenance Compared to regular wood doors, Sing Core doors stay true flat, which prevents the moisture from soaking into the skin, like other solid wood and plywood that are likely to generate surface cracks, causing water to get into the inner layer of wood fiber, even when using proper sealants. Sing Core doors do not crack ensuring longer life for sealant/coating compared to any wood door, so you don’t have to worry about how to fix garage door. See characteristics, including rot resistance.
  9. Quality Assurance  Sing Core is commonly used for extremely high-end, demanding jobs; this is why we offer the best structure warranty in the industry. We are making the largest doors in the door industry and boldly back them up with a 10-year warranty.
  10. Custom Size Sing carriage doors are available in any size. Custom sizing (even large, oversize) in any thickness, most any skin option, specialized insulated foam to accommodate your specifications, along with a variety of design molding. With Sing carriage doors, the sky’s the limit.

How to Build a True Flat Long Lasting Carriage Door

Rot-resistant-wood-panels-will-not-warp-twist-crack-or-cup-for-long-lasting-true-flatnessWood-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.

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

To order Sing Carriage Doors 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 and delivery.

SINGCORE: Any thickness and almost any length Carriage 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.

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