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Sliding Door

Sing Core is the new way to design your door

Solid like a rock, light like feather so you don’t smash your finger.

Wood sliding patio doors, sliding glass doors, and even the most high-fashion vinyl sliding patio door can be expertly engineered with patented Sing Core technology. Strengthening outdoor sliding doors and reducing the weight helps to protect and reduce maintenance to expensive sliding door hardware as well as added stress and strain on the structure. See our new C Series line of Affordable Barn Door and Sliding Closet Doors.


The Sing Core sliding door offers so much more than luxury, but also increases safety and security of the homeowner’s family, the contractors and workers, as traditional overweight sliding doors have been known to be unsafe and can cause injuries threatening life and limb. Reduce liability of your contractors and commercial clients by reducing on-the-job injuries and help to protect the lives of your clients and their families in residential settings.

Even the best health insurance cannot replace a finger that has been crushed by a heavy sliding door.


When it comes to sliding doors for walk in closets, most people don’t recognize the importance of remaining true flat inside the pocket door frame. Whether you’re looking for a pocketed door system, wall-mounted system, hanging or floor track system, you can experience the superior performance of your single French door, fiberglass French door or exterior French door because you’ve been introduced to the best sliding French doors for sale on the market today.

Sing Honeycomb Oversized Door Finger PushExterior sliding barn doors can be beautiful following installation, but after time, problems develop due to door failure. They tend to expand and contract due to weather exposure causing them to warp, twist, and crack, compromising the overall performance of your sliding barn door system. Even a 1/4″ deflection can compromise an otherwise aesthetically pleasing completed project. Sing Core’s true flat guarantee is why high-end millworks and designers seek out Sing Core for extreme weather and temperature-controlled environments.

For the do it yourselfer, DIY sliding closet doors can also be a challenge, and Sing Core can help to bridge the gap between the solo sliding door project.

Sliding closet doors are gaining popularity amongst discerning builders and designers, while wooden sliding closet doors are extremely attractive, infusing Sing Core technology can save your interior sliding doors from warping, twisting and/or cracking, so that you can enjoy the elegance and functionality of your sliding door for lifetimes with little or no maintenance.

No company excels in building sliding doors that are much larger than the standard 8 foot sliding patio door. Sing Core specializes in building extreme oversize, large sliding doors that are true flat and guaranteed (see testimonial).

When you’re designing a double sliding door system, the true flat advantages of Sing Core helps to maintain the structural integrity, keeps the sliding of the doors from interfering with the perfect functionality and long-term efficiency.

And increase in interior design trends, like the wall mounted sliding door, Sing Core is the sliding doors company that can get your from here to there whether you are looking for a sliding door for bathroom, sliding barn door kits, sliding door dividers. Sing Core is your preferred resource if you want to avoid cheap sliding patio doors.

Large Sliding Door Perfectly Straight Strong Flat

Sliding fire doors and refrigerator/freezer sliding doors are gaining popularity in the Sing Core sliding door lineup.Regardless of the wide variety of types of sliding doors, Sing Core is the greater sliding sliding door that offers the elegance and excellence in barn door sliding door, sliding office doors, and exotic sliding doors, like, Chinese sliding doors, sliding French doors exterior, Shoji screen sliding doors and/or Japanese style sliding doors.

Barn door interior sliding doors come in a variety of materials that are virtually unlimited to match your aesthetic tastes including, aluminum patio sliding doorsSing Core makes the best real sliding door that solves the challenges that face architects and designers around the world for the best results, guaranteed.chalk wall2

sliding door

Your sliding door could be a giant chalk board or magnetic display

How to BuyMetal Composite Sing Core panels are true straight, light and strong.To order Sing Sliding 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: In you’re in a rush, only Sing Core can be custom made within 24 hours and is proudly manufactured for you in the USA.

Fast delivery: Any thickness and almost any length, less than 5 ft wide, can be made with in 48 hours if it is rush order.

SINGCORE Sliding 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.

Sliding Doors


If your sliding doors are large, you probably have to deal with the issues of added weight that can be problematic. Lightweight Sing Core’s torsion-box substrate is the answer to dealing with the issues of weight of large sliding doors yet adds high structural integrity, and helps to prevent injury to the end-user(s).
When considering your sliding door ideas, think about the size, the weight and the structural integrity of your sliding door system over time.