Lightweight Doors

September 22, 2022 Sam Snyder No Comments

Large Sliding Doors

If you’re looking for the best large sliding door, you’ve come to the right place. Sing Core specializes in creating the ultimate sliding door experience. We manufacture the only door substrate that you can use to create the most extraordinary doors in the world.

The above picture is a demonstration of Sing Core’s strength. Two 8’x9′ oak doors (approx. 800 lbs.) laying on top of two 7’x8′ curved doors. The curved doors had no visible movement due to the high strength of Sing Core. As you can see, the eye plate is so small but can support such a large door panel.

These three curved panels measure 7’x8′ and are built to the highest precision and strength to last a lifetime.

Here is another example of a curved door with a smaller radius built with the exact same expertise.

Sliding Doors
The deal with sliding doors is that you want your sliding doors to remain straight and true throughout their service life. Architects, designers and end users face the issues associated with sliding doors, but rest easy knowing your sliding door has Sing Core inside.

Problems with Sliding Doors
The first problem with sliding doors is that they tend to move (warp, bend, twist or cup) compromising the doors’ performance. Especially in the case of sliding doors because they hang parallel to a wall (like sliding barn doors), next to another door (such as double sliding doors) or within a wall (like sliding pocket doors). If the door does not stay straight, it can wreck either the sliding doors or the surfaces they slide against, or both.

One way to overcome the warpage issue is to utilize stronger materials which tends to greatly increase the weight. The downside is that increasing the doors’ weight creates another set of challenge. For example, heavier doors require heavy duty hinges to support the doors. Heavier doors also require more labor for handling, installation, and any servicing it may require.

As you can see, this massive door is 8’x9′ and remains perfectly straight. So straight, in fact, that it is perfectly freestanding on end! If there was even the slightest amount of warpage, then this door would topple over.

Sliding Door Design Problems Solved
Architects and engineers are constantly perplexed with the problems associated with sliding doors, fortunately an Eco-friendly composite solution made in the USA, helps to solve the problems associated with faulty sliding door design. Patented Sing Core, along with their true flat door team, can help to create sliding doors that will remain straight and true far beyond the service life of any other sliding doors. By working with Sing Core’s design staff a combination of Sing Core and patent-pending sliding door stiffening solutions can create perfect sliding doors that are lightweight, high strength and can be guaranteed not to warp, bend, twist, cup or otherwise fail for 50 years.

These oak doors are manufactured with the highest precision. As you can see, there is no gap between the two oak doors. If they were slightly warped, or a little uneven, there would be a gap showing, possibly more.

The Perfect Large Sliding Doors
The best custom door manufacturers and millworks who offer long warranties on their large doors have a secret inside each one of their high end professional sliding doors: Sing Core inside. A properly designed and built large sliding door with patented professional Sing Core inside can be guaranteed not to warp, bend, twist or otherwise fail for 50 years.

October 15, 2021 Sam Snyder No Comments

Sing Core Update

We produce patented and patent-pending door blanks for high end door manufacturers and mill works in the industry.
Sing Core door blanks are most popularly used for large sliding doors, pocket doors, pivot doors, hinge doors, and carriage doors. Most commonly we create door blanks for doors that are 8 ft. to 20 ft. tall, and range from 4 ft. to 25 ft. wide.

On average, how much do Sing Core panels weigh?
approximately 2-3 lbs. per square foot. If you double the thickness, you quadruple the strength while increasing the weight by only 5-10%.

How straight is a Sing Core panel really?
We guarantee the same or better than the AWI standard. We are always able to achieve the most dimensionally stable reinforced insulated panel than any other door core. This includes very large and thin doors which pose the most challenge to remain straight. Only our patented and patent-pending technology is able to achieve this. If other door manufacturers are unable to guarantee your doors, please contact us. We will be able to ensure your doors will be straight before we even produce it for you. We are the most experienced non-warp, high strength, and lightweight door panel manufacturer in the world.

What kind of skins do you offer?
The most popular skins we offer include veneer, wood stave, metal, MDF/paintgrade, or marine plywood for exterior applications.

What type of style or design door can you make with Sing Core?
You can add trim or moulding to create a design or can use a CNC machine to carve any design you can imagine, from classic 6 panel styles to complex artistic designs with or without light openings. The possible designs are endless, but Sing Core creates the strongest lightweight and non-warping door panels in the industry. Every door comes guaranteed by inventor Peter Sing.

What type of home uses Sing Core door panels?
Our door panels are used in a wide variety of applications, but most commonly in high-end luxury homes; homes over 8 million dollars for our extremely large door panels.

What type of trade professionals does Sing Core service?
Architects for luxury homes, high-end millworks, nationwide high-end door manufacturers, and general contractors with access to a millwork. We do not sell our products to home owners.

What’s new besides providing the best large door blanks?
We are starting to build standard sized unfinished door blanks for door manufacturers for them to build affordable high-end stile and rail doors. We have been producing MDF skinned paintgrade door blanks in large quantities. Our production line is capable of building hundreds of standard door blanks per day. If interested, send us a schedule of the doors for your project and we will be able to make your door panels at an affordable price; including your large doors. We don’t and are not capable to build doors, we just supply the most straight, non-warping, high strength, lightweight door panel for door manufacturers or millworks to build the highest quality doors at an affordable price.

Who does Sing Core sell their products to?
Most Sing Core door panels are sold because they are specified by high-end architects while designing their multi-million dollar projects or by top millwork companies building high-end doors for very demanding luxury homes. Luxury homes often require large doors for various applications in the home; Sing Core large door panels could be used for sliding doors, pocket doors, or pivot doors that need high precision, high-strength, lightweight, and non-warping door cores.

A millwork company that has been using our patented door technology for over 10 years told us, ‘We have not had any issues with our doors since switching to Sing Core.’ Before, even if they are the top door company in the USA, oftentimes they would face recalls which is their worst nightmare. With our Sing Core innovations and revolutionary technology, we can offer the only 50 year guarantee in the door industry. They love our 50 year guarantee, as most manufacturers in the industry only offer 1 year guarantee or no guarantee at all. Call us if you would like to have that peace of mind. We provide the best door panels and peace of mind in the high-end large door industry.

We also work with general contractors to provide Sing Core unfinished door panels to their designated millwork to properly finish their doors.

We do not sell finished doors. We do not sell our door panels or substrates to people outside of the building industry’s door designers and manufacturers. We do not sell to homeowners or door distributors.

Architects Love Sing Core
Architects spec Sing Core in their huge doors because they trust Sing Core to provide the high-precision, lightweight and dimensional stability, which makes them look good when it comes to these oversized egress points, building credibility with their clients. They know there is no known door construction method that can accomplish such a feat.

Let us know if you are interested to learn how to build any style or design of door with Sing Core panels using a CNC machine subcontractor. You can find CNC subcontractors by searching the internet with phrases like “CNC wood co-op” or “CNC wood shop for rent.” You can find CNC shops to be rented if you are or know a CNC operator. See picture of possible doors you could build by using other wood working machines and talents.

Besides very large doors, standard doors in large quantity, Sing Core technology proves to be useful for all different industries. Click here to see the endless applications of patented and patent pending Sing Core.

High-end doors are often sold for tens of thousands of dollars and should last a lifetime. Door companies usually do not offer any guarantees for doors over 10 ft., the most they offer could be 1 year only. Sing Core will provide a written guarantee for 50 years. This is why Sing Core is recommended by our fellow door manufacturers to use our products. Let your friends and associates know that we are ready to service your needs if you are looking for peace of mind for any large door project you may have.

Sing Core is the best lightweight, high strength, non-warping material. Our product uses our patented and patent-pending technology to solve the issues associated with high-end large doors; not only in the US but in the worldwide – especially Europe. Often times, when a customer is building a $10 million and up house and use other door technologies, they tend to warp over time. This same customer then comes to Sing Core to solve their problems. No one else can create a door like this that can remain straight, and we guarantee it for 50 years.

When talking to a door company you have to ask questions like, “What is your guarantee against warping?” or “How long is your guarantee?”

Warping is the biggest issue in large doors besides weight issues or insufficient strength.

Often times you find out that the other doors companies do not offer guarantees for doors over 10 ft. and sometimes they have an issue guaranteeing doors that are less than 10 ft. The best guarantee they may offer is for only one year.

Lets say you have a $15-25 million dollar home and the doors are only guaranteed for one year. If you have problems with them and call the company after one year they will tell you that you no longer have any guarantee.

Do you want to deal with that kind of door or do you want to rest easy with Sing Core?

We guarantee our doors for 50 years. If the door does not last 50 years, then why would you want to spend tens of thousands of dollars for doors that aren’t reliable?

Sing Core has a deal with most high-end door companies in the US.

Our performance shows. We haven’t had a single door fail.

When a door fails, everyone panics; from the architect to the millwork to the general contractor and especially the high-end clientele. ‘It’s not just about the money, but the reputation.’

At Sing Core, we keep your reputation. No body else in the world can the issues with large doors.

You are a high-end professional, you do not want people to call you and complain that their doors have failed. We know how you can panic if a high-end customer complains. We can help you sleep better by avoiding the trouble a head of time.

February 20, 2020 No Comments

Lightweight doors are the mainstay of Sing Core’s offerings, providing the highest precision lightweight door blanks to the biggest and best door companies, millworks, and custom door manufacturers in the world. But don’t let the light weight fool you as Sing Core is stronger than steel pound for pound, and doors with Sing Core inside come with a 50-year warp-free guarantee.

If you don’t already know, there’s a new way to build the best lightweight doors with the highest performance ratings in the industry using inventor Peter Sing’s patented and patent-pending technologies architects, door engineers, and door builders are able to create lightweight doors of enormous size which can be guaranteed to provide faithful fail-free service for 50 years.

How to Build a Lightweight Door

Since the late 1800’s experienced woodworkers have known the secret of building a wide, large flat wood surface was to use an interior torsion box which helped to resist the nature of wood grain to move according to changes in the environment. Torsion box was often incorporated into the designs of large spanning tabletops and very large doors. Even though the overall results were far better to build with torsion box than without it, these massive surfaces would move due to the natural wood surfaces.

A torsion box is a grid made of wood-framed boxes forming a flat grid inside of the large spanning exterior skins. This interior wood grid structure is time consuming to build, but effective in reducing the overall weight of the structure and resisting movement while increasing compression strength.

Technology presented less expensive honeycomb core alternatives to the original torsion box concept to as the answer to how to build a lightweight door quickly and inexpensively. Still, the standard honeycomb core boasts only a 10 to 110 PSI and has virtually little or no sheer strength.

Sing’s invention greatly improves on the tried and true benefits and design of torsion box substrates for building a lightweight door first by flipping the grain of the torsion box frame to perpendicular to the exterior skins. This minor tweak increased the strength of the torsion box (which used only horizontal oriented grain in the past) many times, but he wasn’t done, yet.

Then, Sing filled the voids of the torsion boxes wall to wall with rigid recycled foam insulation, creating a composite hybrid core that when sandwiched between two stress skins created a structurally sound solid hybrid composite panel which could span large areas unsupported.

This is the most effective way known how to build a lightweight door to date.

Sing’s invention has empowered architects and engineers to push the reaches of standard building materials by replacing traditional lumber or plywood with his Sing Panels. Nearly anything can be made with this new patented building material which has been independently tested to sport a minimum of 660 PSI and having the highest tolerances of any other building material (+/- .006 in.).

Sing’s factory provides the strongest lightweight door blanks for building the largest and strongest lightweight doors on or off the planet. That’s why you could find them anywhere from beneath the sea (U.S. Navy) to outer space (NASA) and everywhere in between.

Any Type of Lightweight Door

Sing’s True Flat Team can create door blanks for any type of door ever made, only the result will be lighter in weight and many times stronger than the door which preceded it. That’s why lightweight doors with Sing Core inside are growing in popularity as replacement doors in major projects and those requiring high performance and low maintenance for everything from historical renovations to leading edge scientific applications.

Imagine making any kind of door lightweight and extremely strong like,

Aluminum doors
Fiberglass doors
French doors
Hot rolled steel doors
HPL doors
Stainless steel doors
Stile and rail doors
Acrylic doors
Brass doors
Cement & concrete doors
Cold rolled steel doors
Entry Doors
Exterior front doors
Formica doors
Galvanized steel doors
Kevlar doors
Laminate doors
Masonite doors

Any Door Skin

The options available for the addition of a virtually unlimited vast variety of available doors skins from exotic natural wood grains to high-tech impervious synthetic surfaces, and you can now have any available type of metal door known to man, only have it as a lightweight metal door which is stronger than steel.

Insulated Lightweight Door

Another benefit of having Sing’s core inside your door, is that each door is fully insulated for sound deadening and climate quality characteristics, which you will not find in any other Eco-friendly lightweight door which sports such high strength and tolerances.

50-year Guaranteed Lightweight Door

These are the only doors in the world that come with a full 50-year guarantee. Your lightweight door with Sing Core inside is guaranteed not to warp, bend, twist, or otherwise fail for 50 years, including full structure and free from delamination.

If you agree with the biggest and best door manufacturers, you will be saying,