Sing Core specializes in supplying the best millworks, door companies and custom door manufacturers with the best base doors built to architectural specifications ready for the installation of standard side hinges for any type of predetermined door swing, such as inswing, outswing or a double swing door which swings both inward and outward, as a more specialized hinged door.


Why Sing Architectural Standard Swinging Hinged Doors?

The main reason why architects, designers and door manufacturers seek out Sing Core for their architectural swinging doors is because their clients are not interested in standard pre-hung hinge doors that you can buy off the shelf. These are the most demanding clients who know what they want. They want the best of the best; a high end door created according to their needs, wants and desires, in whatever size they want, that incorporates only the best materials and craftsmanship possible.

What does it mean to be The Best of the Best in Architectural Doors?

The best doors have Sing Core inside and are finished by highly skilled craftsmen who put all the love, attention and skill into the fine details matched with the best hardware which results in the most exquisite high-end one of a kind hinged door that is a work of art and clearly the best of the best. An Eco-friendly, sustainable, fully insulated hinged door with is lightweight, high strength and can be guaranteed not to warp, bend, twist, or otherwise fail (including full structure warranty) for 50 years!

What hinged door sizes are available?

A hinged door with Sing Core inside can be any size. The greatest majority of Sing doors sizes are 4×8 hinged doors and larger, up to 50 ft tall large oversized doors (or more). The main reason why only the best architects specify having Sing Core inside their large doors is due to the unique characteristics of patented Sing Core, which helps to create the only Eco-friendly, lightweight, high strength hinged doors that can be guaranteed to remain warp-free for 50 years.

Swing Automatic Doors

Sing Core is featured inside a growing number of hinged doors that are operated automatically by mechanical apparatus. Sing swinging doors have superior compatibility for automatic door openers and closers due to their extreme lightweight and high precision. These warp-free swinging doors which are available in any size outperform other swing automatic doors which cannot be covered by a 50-year no-fail guarantee. Plus, the lighter weight of Sing swing automatic doors means lower cost of automation which is based on the weight of the swinging door.


Warp-free Swinging Doors

While large swinging door can maintain a certain level of straightness over time by building up the side hinges by increasing the number of hinges or even using a continuous hinge also known as a piano hinged door, working with a warp-free door slab is the preference of high end clientele, in upscale homes as well as commercial and industrial applications.


How does Sing Core make Warp-free Doors?

Keep in mind, Sing Core does not make doors. We only make the patented door core or substrate material that is high precision (+/- .006 in.) Eco-friendly (responsible use of natural and recycled material), fully insulated (starting at R3.5 per in.), lightweight (66 to 90 percent less than other heavy solid door core materials), and high-strength (660 PSI, stronger than steel pound for pound) for the most sustainable long-life warp-free results (50 years, guaranteed professional grade).


What’s the Secret of Patented Sing Core?

Sing Core’s patented hybrid composite structure consists of melding age-old wood craftsmanship with new recycled structural insulated panel technology to create this one-of-a-kind lightweight, high-strength, warp-free hinged door solution. Starting with a vertical gain torsion box grid structure, only instead of leaving the boxes empty, the hollow portions are filled wall to wall with rigid recycled structural foam insulation. This composite structure grid is sandwiched between to exterior structural skins (could be any flat building material) and pressed together using formaldehyde-free adhesives.

The Best Swinging Doors Don’t Have to be Expensive

Of course, the one-of-a-kind piece of art-style large hinged doors are going to be the most expensive but large door companies do come to us for regular-sized doors that are specified as having Sing Core inside. Small runs are made to accommodate these requirements for jobs where even the regular-sized swinging doors are made with Sing Core inside.

We Specialize in Challenging Hinged Doors

No matter what kind of door you want, door companies, architects, and custom door manufacturers may see your specific hinged door, set of hinged doors, or other types, styles or sizes of doors to be outside the spectrum of their normal capabilities. Sing Core is their backup for the difficult, challenging and large oversize door manufacturing which is not a part of their normal operation. Now, you can still deal with the same door manufacturer who is providing the rest of your doors without having to custom outsource your unique specialty doors. By simply specifying, “Sing Core inside,” the challenges vanish, without compromising timelines.

Architectural Standard Swinging Hinged Doors in Bulk

The most economical way to obtain Sing swinging doors is to order in bulk. To qualify for special discount pricing on bulk orders, consider a bulk order of 100 doors of any size (all the doors do not have to be the same size. They can all be different sizes and still qualify for bulk pricing). Unfinished door blanks will be shipped to the door company, millwork or custom door manufacturer for finishing.

Fast Bulk Manufacture of Swinging Doors

Our factory is specially outfitted for large bulk orders of swinging doors. We are the unspoken backbone of door manufactures that might have to retool their factory for a particular run of doors. Rather than go through that extensive retooling process, they send the order off to Sing Core which rapidly builds and ships the doors in about the time it would take to tool and retool their facility for the run. We recently just completed a bulk order of 700 doors for a door company on the East Coast.

Sing Swinging Doors

The popularity of Sing swinging doors are sweeping the nation garnering more attention by the most exquisite contemporary architects, designers and engineers. And thanks to the door companies with which we work (including some of the largest door companies in the world) you can find hinged doors swinging in homes, hotels, hospitals, universities and science labs anywhere from below the sea (US Navy) to outer space (NASA) and everywhere in between.

Sing swinging doors can be retrofitted for any size opening in any swinging door style. Custom glass window lite cut outs can be precut in any door design at our factory prior to shipment. Unique glass openings are unlimited and can be CNC cut to your drawing(s) or architectural specifications.

Sing swinging doors can be taller and wider than any standard doors available, up to 50 ft tall, or more, and still be covered by our full 50-year warp-free guarantee, even if the door is made with solid wood stave (which is always a challenge for any door over 7 ft tall).

Sing Core is your source for hinged doors and swinging doors which can be tall and wide, yet still maintain a slim profile without compromising strength, structure or 50-year guarantee for premium hinged doors.


How to Get Sing Swinging Doors

Simply go to your favorite local architect, door company, millwork, or custom door manufacturer and tell them what kind of door you want, including the door height, width, thickness and the surface material desired and make sure to tell them that you want, “Sing Core inside.”

Architects, door companies, millworks and custom door manufacturers are invited to contact us directly.