Welcome
Big French Doors That Never Warp
Stronger, Straighter, and Guaranteed to Last 50 Years
Innovative Designs: A Look at Big French Doors's Product Line
About Big French Doors
Big French Doors That Never Warp
Big French Doors That Never Warp
Stronger, Straighter, and Guaranteed to Last 50 Years
When it comes to Big French Doors, no other core technology can match the strength, light weight, and warp-free performance of Sing Core. Whether you’re designing a grand entrance for a luxury estate or fitting expansive glass panels in a commercial setting, Sing Core is the only solution that guarantees stability and performance in doors of any size — even the largest.
Unique French Doors
Big French Doors by Sing Core
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Big French Doors by Sing Core
Welcome to Big French Doors - Built by Sing Core
Why Choose Sing Core for Your Big French Doors?
- 50-Year Warp-Free Guarantee – No more callbacks or service issues. Your doors stay straight.
- Lightweight Yet Strong – Our patented core reduces weight by up to 80% while increasing strength.
- Any Size, Any Skin – Build up to 40 feet wide or taller with wood, metal, HPL, or custom finishes.
- Eco-Friendly Construction – Made in the USA using sustainable materials and low-VOC adhesives.
- Sound Deadening and Insulating – Built-in insulation provides superior thermal and acoustic performance.
- Ready for Hardware and Customization – Include solid wood or metal inserts for handles, locks, or automation.
Whether you’re specifying for a modern architectural masterpiece or a rustic estate home, Big French Doors from Sing Core make a lasting impression — inside and out.
Window French Doors
Manufacturing Big French Doors
Manufacturing Big French Doors
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Big French Doors by Sing Core
Welcome to Big French Doors - Built by Sing Core
For Architects:
Sing Core gives you freedom to design Big French Doors without the risk of warping or size limitations. You can specify large spans, narrow stiles, and custom materials while staying confident in long-term performance. We work directly with your firm to provide CAD-ready details and support through every design phase.
For Contractors:
Tired of heavy, unmanageable French doors that sag or shift after install? Sing Core panels are lighter, straighter, and easier to transport and hang. You can deliver high-end, oversized doors with less labor and fewer site challenges. Plus, our 50-year warranty means fewer headaches down the road.
For Millworks & Fabricators:
We don’t compete with you — we empower you. Sing Core provides high-precision door panels ready for you to finish, edge-band, and hang. Whether you’re building solid wood stile and rail designs or modern flush panel doors, we give you a stable, warp-free foundation to build on. You add the artistry. We handle the engineering.
French Doors That Open Up Possibility
With Sing Core, your French doors can be:
- Extra Large – Up to 40+ feet wide, multi-panel, or oversized double doors
- Custom Skinned – Wood veneer, aluminum, steel, fiberglass, and more
- Glass-Ready – With U-channel, SDLs, or integrated glazing for maximum light
- Pre-Routed for Hardware – Customize for hinges, locks, pulls, and automation
- Energy-Efficient – Insulated core enhances thermal performance
Our 50-Year Warp-Free Guarantee
No other door core provider offers this level of assurance. Our patented core technology is so strong and stable, we guarantee it will remain warp-free for 50 years — even in extreme environments. That means your doors won’t twist, bow, or fail over time.
See the Difference
You’ve never seen Big French Doors like this before. Lightweight enough to lift with one hand. Strong enough to span a hangar opening. Stable enough to last a lifetime.
That’s the Sing Core difference.
Get a Quote Today
Ready to build your next French door project with confidence?
Tell us your size, skin, and specs — and we’ll send you a custom quote.
👉 [Request a Quote Now]
👉 [Contact Us for Design Support]
