If you are short of skillful woodworkers, we can help you build the best door.
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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.
New Sing Core Technologies
Sing Core is on the leading edge of building very large doors, and in the process we are getting better and better which means our doors are becoming stronger, lighter, and even more dimensionally stable than ever before.
We have applied several new patent-pending technologies to further yet improve our doors.
Take a look!
Why are we always the best?
Because the owner/inventor Peter Sing and his team are always creating new ideas which are then put in motion to produce the best door in the world. Our innovation never sleeps and is constantly evolving to overcome any challenges our products may face.
Our specialty is very large doors; such as oversized pivot doors, sliding doors, hinge doors or even garage doors. Our patented and patent-pending technologies are applied to much more than our doors. Some other popular applications include room partitions, tradeshow displays, tiny houses, and much more.
This picture,
will show, it may look no different than other doors. But this is the highest precision. Strongest lightweight, large door in the world by applying several of our new patent-pending technologies.
How to Build the Biggest Warp-free Door
Sing Core has long been in the business of building the biggest warp-free doors in the world. And now you can learn how to build the biggest warp-free door as well. The first thing to note is that Sing Core does not build doors, even though Sing Core is credited and called out in architectural specifications as Sing Core door(s).
New Door or Replacement Door
Sing Core assists in the building of either New Doors, doors that have not existed before, or Replacement Doors, doors that are being replaced and may have to be replicated to maintain the appearance of the original door, such as in the case of participating in a historical restoration.
How to Build the Biggest Warp-free Door
Since Sing Core does not build doors, it is up to the architect to imagine what size the new door should be and of what materials the door should be made of. In the case of replacement doors, Sing Core is provided all the specs based on the original door to be either replaced or replicated.
The following steps are followed in making a door with Sing Core inside:
Step 1: Answer questions, and estimate
- What is the size (length, width, thickness) of the door?
- How will you be finishing the door
- What type of door hardware will be used (hinge, pivot, sliding, overhead, etc.)?
- What style of door (flush, architectural, plank, French, Dutch, etc.)?
- How and where will the door be used?
- Will this be an interior or exterior door?
- Are there other specifications (weight, insulation, sealing, etc.)?
Step 2: Re-evaluate and refer to Sing’s True Flat Team, if necessary
The True Flat team is available to help you provide your customer with a door that fits within their budget.
Sing Core and the True Flat team can suggest ways of changing some of the details of the panel, such as, reducing the height/width or choosing a more cost-effective skin.
Steps might need to be made to modify Sing’s composite hybrid solid substrate to accommodate the challenges that may not have been noted in the original details gathered in Step 1.
Step 3: Manufacture specified Sing Core
The specific Sing Core substrate core is then manufactured in Sing’s factory by skilled workers who have been manufacturing Sing’s cores for years using Sing’s patented and patent-pending technologies. Occasionally, a new challenge is recognized that the true Flat Team has never seen before, that is when Sing get to inventing again, and when a solution is achieved, this will likely lead to another patented solution.
The core which is based on Sing’s insulated reinforced vertical grain torsion box core, may or may not be framed, and is sandwiched between two matching skins, ready to be used as door core.
If no other services are required, skip Step 4, and go directly to Step 5.
Step 4: Additional services
Some of the additional services that Sing’s factory may provide, include:
- Trimming
- Adding exterior skins
- Wood stave
- Veneer
- Cement board or concrete
- High Pressure Laminate (HPL)
- Fiberglass
- Formica
- Metal
- Aluminum
- Cold rolled steel
- Copper
- Galvanized steel
- Hot rolled steel
- Lead
- Stainless steel
- Impact/Bulletproof/Blast resistant materials
- Light cutouts, openings, for glass inserts
- Routing for architectural grooves
Step 5: Package and ship to millwork or door company
Step 6: Finishing
How to Use Sing Sandwich Core
With the growing number of users who can now obtain Sing Core through their local distributors, we now offer you educational resources online because we desire to see you be as successful as our high-end clientele. We think that you will discover, as they have, that Sing Core is by far the best lightweight, high strength, fully insulated core material in the world.
Here you will find the tools, tips, and techniques that will help you maximize your efforts using Sing Sandwich Core.
We are offering you our book, How to Use Sing Torsion Box Composite Sandwich Panels to Build Endless Products, in downloadable eBook format
The introduction basic tutorial on to how to use sing sandwich as substrate core material.
Why and How to Use Sing Sandwich Core
Sing Sandwich Panel provides the wood worker with pre-built torsion box at an affordable price.
Sing Sandwich Closing the Edge
Sing Sandwich has Sing Core exposed on the edge. This is normal and rudimentary for millworks and the high end developers…
How to
- Create the Right Sing Panel
- Cold Press Sing Panel
- Make Your Own Large Panels
- Use Sing Sandwich as Substrate
- Build with Sing Honeycomb Panels
You Have Questions?
If you have already obtained Sing Sandwich Core from your local distributor and have questions about how to use it, please post them before and check back here. It is our intention to answer your question on this page. These questions and answers make the Sing Core experience better for everyone.
Thank you for your support.
PS: Please respect that we do not have customer support set up for consumers, but in the interim, please feel free to post your questions below and we will try to answer them here the best we can.
Thank you,
-Sing Core
Alternative to Aluminum Honeycomb Panel
Sing Core’s alternative to aluminum honeycomb panel. aluminum honeycomb panel is used as core material in a variety of applications such as facades, walls, floors, ceilings, roofs, inside doors and partitions. Aluminum honeycomb core also found inside workbenches, craft tables, laser cutting tables, and a wide range of other types of work surfaces, especially when there is a desire to reduce the weight of the end product.
Increasingly, Sing Core is replacing aluminum honeycomb core with its Sing HPL Sandwich Core.
Sing HPL Sandwich Core
Sing HPL Sandwich Core is far superior to any aluminum honeycomb core in the following areas:
1. Strength-to-weight ratio
2. Fully insulated
3 High precision
4. Longevity
5. Eco-friendly
6. Warp-free
7. Low cost
Sing HPL Sandwich Core serves as base core in many industries including government, scientific, universities, military, space exploration, aeronautics, nautical, in submarines, public transportation, railways, corporate, and industrial warehousing, just to name a few.
1. Strength to Weight Ratio
Sing HPL Sandwich Core exceeds all expectations when it comes to strength vs. weight thanks to inventor Peter Sing’s patented and patent-pending technologies which are the foundation for the success of Sing’s core. Long ago, Sing coined the phrase,
“Heavy does not mean strong, and lightweight doesn’t have to be weak.”
Sing’s invention changed the way architects and engineers brought their creative endeavors and problem-solving solutions to life.
2. Fully Insulated
Sing HPL Sandwich Core is a key ingredient in breach proof impact doors, and other applications where sound proofing, refrigeration, defense, and separation is imperative. Due to the nature and construction of Sing’s HPL Sandwich Core, no effort needs to be made to achieve an acceptable degree of sound deadening or climate control.
3. High precision
When the attention to detail demands high precision, no core material is more precise or stable than Sing HPL Sandwich Core sporting an impressive .006-inch tolerance. This is why Sing HPL Sandwich Core is hands down the go-to solution for dead flat tables supplied by the best high-end millworks in America today.
4. Longevity
When it comes to composite cores, risk is assumed in the area of the lamination process which holds the various products together over time. Sing’s patented and patent pending technologies eliminate the risk of delamination over the life of the product in use. And even comes with a 50-year structure warranty which includes delamination, so you don’t have to worry about it.
5. Eco-friendly
Aluminum Honeycomb Panels are made offshore and imported for use in the USA. Why? Because the production process is so toxic to the environment that it would be nearly illegal to manufacture in the United States. Even so, we still share the same air and oceans with our neighbors outside our borders. This matters to Peter Sing who only uses USA-sourced and natural materials holding the highest standards for Eco-friendly manufacturing methods for a better world.
6. Warp-free
Sing HPL Sandwich Core is long-renowned as, “the only way” to create large, panelized structure materials that will not warp under strenuous conditions. Though note that Sing’s True Flat Team must be involved in the engineering and manufacturing of the project because many factors must be taken into consideration to create a warp-free product, such as size, skin type, location, and application. Still, the only 50-year warp-free guarantee in the industry, regardless of size.
7. Low Cost
With the rising cost of aluminum and other metals, Sing’s Sing HPL Sandwich Core is a value in comparison to other manufacturing methods. You can now achieve greater results without having to use any metal, and saving money that would otherwise be wasted on metallurgy.
Other Types of Core Materials
Sing HPL Sandwich Core is vastly in the process of becoming the replacement core of choice over other types of lightweight core materials such as paper honeycomb, and different kinds of urethane core, EPS core, wood-based core, such as particleboard, LVL, solid wood core, as well as aluminum honeycomb core to keep the working subject straight, flat, or lightweight over time without fail.
Sing MDF Composite
Going a step beyond the Sing HPL Sandwich Core, one of the most popular hybrid composite products in huge demand is Sing’s MDF Composite available in core or panelized with solid wood edges and implants. This has the embedded HPL for all the high performance results, plus it is topped with a super smooth 1/8” MDF for easy painting or lamination of nearly any material.
Try it. You’ll love it, just like the rest of our high-end clients who rely on its stability and beauty when finished.
Standardized Surplus Special
In an effort to help spread the news about Sing Core’s ability to make most anything better, we have a way that you can try some Sign Core out for yourself.
We have a limited stock of Sing HPL Sandwich Core on hand in standard sizes that is taking up valuable space in our warehouses, so you are welcomed to try it out to see what you think.
Available Sing HPL Sandwich Core Surplus Items
We have some excess stock of Sing HPL Sandwich Core in the following sizes
4×8 4×10 5×8 5×10 5×12
standard 1 1/2, 1 3/8, 2 1/4 thick
Our standard thickness is 1 ¾ inch right now. But any size you can special order.
Quantities are limited to what we have on-hand.
These materials would be perfect for projects of nominal size, such as 2 ft, 4 ft, 5 ft, less than 3×5’, 2×6’.
Of course, if you want all the positive results of Sing’s core guaranteed 100% without worry, custom order from us. We will make you a frame, as featured in Sing Panels. Which means they come with solid wood edge, with the reinforced structure inside to keep it straight. That is more expensive but is trouble-free for you, for your door company, especially if you are dealing with very large doors. Some doors 8 ft 10 ft tall by 25 ft wide or bigger. This is our niche.
Otherwise, you can use Sing Core in endless applications, such as: See Application List
Sing Core MDF Composite
This is one very basic, less expensive option, but if you want to be straight, with concern of warping, or telegraphing, would require an upgrade with special skin underlayment beneath the MDF skin on top of Sing Core.
This creates a either a core material or full panel with stable material on both sides with MDF skin for paint grade or cold press purposes. More stable translates to less chance of telegraphing, and designed for high-end precision and smoothness. The price is a little bit over than that of standard MDF-only skin.
But, if you want to do hot press, then you must take advantage of our special hot press process. That means you can accommodate the increased high temperature and high pressure without worrying about any telegraphing. This is the most expensive method for the most demanding clients.
Note: We normally have a minimum order of $4,000 and orders under that amount are assessed a $500 surcharge. During this event for these items only, we are reducing the surcharge to $100.
Plug-in to Sing’s Core Group
As you become a regular customer you can achieve platinum status at Sing Core which plugs you into Sing’s Core Group. That means you get regular updates and training in all the latest news and developments that are happening here at Sing Core.
Platinum members may also be eligible for elimination or reduction of rush fees, when in a hurry.
$10,000 Doors
Doors with Sing Core inside can sell for tens of thousands of dollars due to the high precision and high quality.
If you are in the Core Group, you will access to all the training and knowledge necessary to qualify you to make $10,000 doors, too. And we’ll show you how to use the glue applied to make it stronger to last. As a platinum member, you will be a well-informed in any new technology developed by us.
So, this is the best opportunity for you to contact us. So, that means we can establish something in long-term relationship in support of your creativity because Sing Core has endless applications.
You can create anything from a full exquisite home with all the bells and whistles to a high functioning tiny house. You can build replacing traditional lumber including components as post and beam.
There is no doubt that Sing Core is the most environmentally friendly material, not just as building material, but for longevity, lifespan, and the highest precision so that you can create the masterpiece demonstrating your strength as a creative woodworker.
Your skill combined with the invitation of what we can do, together we can change the world.
Meet Inventor Peter Sing
Besides all this, if you would like to know more about Peter Sing, the inventor and his creativity, click here. We have a four-minute video to give you an idea about how Peter Sing’s mind works. You should see it. Please tell your friends, because these inventions are needed.
Sing Core Secret Weapon Special
Sing Core is renowned for being the secret ingredient in some of the most high-end work performed by millworks, craftsmen, furniture builders, and door manufacturers. They refer to our 50-year guaranteed warp-free substrates as the “secret weapon” inside their products that makes all the difference, and their clients are happy to pay a higher price for an exclusively high-performance result. To celebrate this Sing Core win, we are offering a 50% off sale on the most common lightweight, high-performance, warp-free solutions which our current clients depend on to deliver to their best customers.
The Most Popular Secret Weapon
The most popular secret weapon is Sing Core wrapped in Formica and MDF. Specifically, 1/8″ MDF over Formica with lightweight, high-strength, fully insulated, high-precision, warp-free Sing Core inside. This unique composite of natural and hybrid materials saves considerable weight when compared to MDF over ply.
Not only that, but that hidden layer of Formica provides greater rigidity for your panels to remain true flat over time. These panels are fully covered by our 50-year structure and warp-free guarantee.
You can see why people in-the-know are so excited about working with this high-end material, and why certain architects are specifying this combination inside their designs.
The Most Popular Sizes
We are prepared to temporarily reduce the prices of these secret weapons in the most popular sizes, so that you, too, can make the best high-performance goods in your industry.
MDF over Formica Sing Panel Sizes
| SIZE | REG. PRICE | 50% OFF |
| 4’x8′ or less | $1,200 | $600 |
| 4’x8’+ to 4’x10′ | $2,400 | $1,200 |
| 4’x10’+ to 5’x10′ | $4,000 | $2,000 |
Secret Weapon Details
These prices are only good for 30 days. You can lock in price for 90 days by placing your order today and paying your deposit (within the first 30 days of this offer).
No Minimum Order
Usually, Sing Core charges a minimum order fee if your order is less than $4,000 there is a $500 fee. Minimum order is waived for this offer as you are offered to try Sing Core for yourself.
Industry Professionals Only
These prices may seem expensive to the average woodworker. Although Sing Core is highly sought after by many woodworking enthusiasts, it is only available to high-end millworks, and door manufacturers who will use this material to create products that their clients will pay $10,000 or more for, where the Sing Core secret weapon is only the key ingredient inside their resulting product. You must be in the business, a door manufacturer or millwork, not a door distributor. You must have a shop or millwork to finish door to take advantage of this offer.
Anything You Want
Sing Core can help you create or recreate anything you want in superior Sing fashion. Just send us a picture of the door you want (any style or material) and we can match it, or work with your team to create the original or replacement door.
No Size Limitation
Sing Core specializes in providing this amazing unprecedented high-performance substrate material in any size up to 20 ft. or more, though these massively over-sized panels are not included in this offer.
We Want to Do Business with You
If you become a repeat customer, you will get a good discount.
Current Trends Don’t Wait
This is an update to let you know what the current trends are, here at Sing Core.
The biggest trend is this:
Warped Doors… Help!
We have been getting a lot of calls from professionals who have installed large doors who are now in trouble because those doors warped. As you know, Sing Core is the only way to build a large door that does not warp, and we guarantee it for 50 years.
If you are in trouble and need that door right away, we can do it for you, but you will incur rush fees. You will be far better off by getting the door assistance from Sing Core in the first place.
Don’t wait. Let Sing Core save you the headache, lost time, and expense of having to replace that high-end door later. According to the reports of incoming requests, the large doors are having to be replaced within six months of the job’s completion. Don’t let this happen to you.
We Can Do It
When you work with Sing Core to help you make that big door, you are working with inventor Peter Sing’s True Flat Team that knows how to build warp-free doors. They have years of experience with all types of building materials and types of doors. They know what can be done, what cannot be done, and have patented and patent-pending technologies to make an otherwise potentially warped door, warp-free guaranteed.
Ordinary vs. High-end
This is the difference between an average door and a high-end door: Precision over time. Out of the gate, Sing’s door core sports +/- .006 in. tolerance which is the highest precision door core to start with. That’s not including all the anti-warp technologies that are available to the team to make sure your door does not warp over time.
Built to Your Specifications
We can solve the issues that you are facing with your door. We can make the door lightweight, no matter what the size, but if you need to match a weight requirement, we can help you achieve that as well. Your door with Sing Core inside can be built according to your specifications.
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Some Other Trends We Are Seeing
Grooved Doors
Architectural doors with horizontal grooves appear to be all the rage. If you have been doing this for a while, you already know that routing kerfs, plow cuts, furrows, or V grooves is compromising the door’s structure and may lend to increasing the door’s tendency to warp, but not if it has Sing Core inside.
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 High precision 1/16″ groove in 1/8″ skin |
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We can pre-cut grooves, even deep grooves (we have a special process for extra deep grooves) for you, without jeopardizing your non-warping guarantee. If you are doing a high-end job, you should start with a high-end core, like Sing’s warp-free door core.
Curved Doors
Unlike arched doors, curved doors must be very exacting to match the curve of the structure in question. The last thing you want is for that door to move, rendering the door unusable. This is extremely important for curved doors, that they keep their shape consistent over time.
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Sing Core can match any curvature in your perfectly curved door and guarantee maintaining is shape in longevity. Nobody else can do that and guarantee it for 50 years.
CNC Carved Doors
CNC carved doors are really being seen as on the increase. These doors can be rather large, and you will need enough wood (meat) to carve into, and there are varying landscapes being carved into the grain, which is an invitation to warpage.
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To prevent future warping doors, these CNC artisans are making sure they have non-warping Sing Core inside, specially designed and reinforced to accommodate both the natural wood grain and the varying depths being carved throughout the door’s surface area.
How Can We Do It?
How can we consistently make the doors that are impossible for other door manufacturers to create? Because it’s all we do. We have been doing it for years and will do it for many more.
We are not saying that other companies cannot provide their clients with 50-year warp-free extraordinary doors, because we work with the biggest and best door companies to assure that they can give this level of service and precision to their clients. They trust us with giving them what they need to deliver their best to their best clients.
Let us help you deliver the best big doors to your best clients.
Harness the Power of the Ocean and Power the World
Inventor Peter Sing is disclosing an idea that he came up with long ago and thought someone would have certainly done it by now, but since no one has figured out how to get the greatest yield by harnessing the power of the ocean’s tides, he decided to move forward, even toward patenting his original idea.
The idea is not unlike Peter’s vertical grain torsion box idea. Everyone was using horizontal grain to build torsion box grids, but by turning the grain perpendicular to the surface material, the torsion box was many times stronger.
The similarity here, is that everyone who is attempting to extract energy from the sea, is following the limited success of wind power, taking advantage of current. A turbine generator turns when it encounters current, as wind blows by, or the tide flows in or out. While the tidal movement is more consistent than wind, this is still old technology.
Peter’s approach is to turn this approach perpendicular to the ocean, harnessing the energy as the level of the ocean raises and lowers.
| Old Approach | T + (I+O) = E | Tide Current vs. |
| New Approach | T + (U+D) = ME | Neutral Gravitational UP and Down |
Where T = Turbine, I = In, O = Out, U = Up, D = Down. E = Energy, and M = More
And if that wasn’t enough, just as with Sing Core where the vertical grain torsion box was not enough, Peter takes it to the next level again, by further enlisting the aid of additional resources to make it even better. So, in this case, he adds the third element: Gravity (G).
| Even Better Approach | T + (U+D)*G = MEX | Enhanced Crushing Up and Down Torque! |
Here’s a video refresher that will tell you everything that we know about how we extract energy from the sea (don’t worry, ‘it’s only 10 minutes):
Now, imagine, a system that extracts all the potential energy from the ocean by taking advantage, not of the current that flows in and out, but the distance between high and low tides, and achieves exponential output due to adding extra gravitational force to the equation.
This is the new revolution of increased potential when turning naturally occurring tidal movement, without impacting the synergistic environment or interfering with sea life, and it is seamlessly invisible to the naked eye.
It does require mounting a base to the ocean floor and a buoyant device which creates the top and bottom of the Oceanic Tide Generator (oceanictidegenerator.com is available) which is suspended beneath the surface of the water, and would be cylindrical in shape, 30-55 feet tall, depending on the location of the Oceanic Tide Generator (OTG).
Any existing buoyant device could be used for the top piece of Sing’s New Approach Oceanic Tide Generator, but a specially designed and built top piece would need to be used to complete the Even Better Approach for exponential output.
Peter has done it again. There it was in plain sight, as were all the elements of his Sing Core invention. All he had to do was to flip it over on its side to make it better, then take it to the next level. Thanks to the success of Sing Core, he is able to pursue this next journey into revitalizing the way we extract energy from the ocean in the most environmentally friendly way.
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