Commercial Bifold Door Solutions

Providing Aviation hangar/Aircraft hangar, Agricultural, and Industrial bifold door solutions. Custom bifold doors for large openings in a variety of applications. Visit our industry page to learn more.
Industry Pages

North American Made

Diamond Doors is a Canadian door manufacturer offering folding door solutions since 1998. Your door will arrive fully assembled, pre-wired, and finish painted. Want to know more? Contact us today.
Learn More about Diamond Doors

Convenient Door Design

Our bifold door systems are low maintenance with industry leading features and options. Explore our door to learn more about our high quality bifold door.
Learn More about Bifold Doors

Aviation · Agriculture · Industrial

Commercial Bifold Door Solutions


Custom bifold doors for large openings, from aircraft hangars to farm buildings and industrial shops.

Since 1998

North American Made


A Canadian door manufacturer from Winkler, Manitoba. Your door arrives fully assembled, pre-wired, and finish painted *Conditions apply.

Features & Options

Convenient Door Design


Low maintenance bi-fold door systems with industry leading features, built for years of push-button operation.

Ready to talk about your door?

Agriculture

Agriculture

We manufacture quality bifold doors for any agricultural application, including cold storage buildings, insulated shops, livestock barns, fabric buildings, and quonsets.

Learn more about Agriculture

Aviation

Aviation

Our bifold hangar doors are ideal for any type of hangar building, including hangar homes, private hangars and commercial hangar condos. Designed for convenient operation and built for quality, Diamond doors are simply different.

Learn more about Aviation

Industrial

Industrial

Our bifold doors are suited for any industrial application, including commercial buildings (welding shops, manufacturers, shipping/receiving ports, marinas, storefronts, etc.) and applications with special electrical requirements.

Learn more about Industrial

Industries we serve

One door system, built for the way you work.


What our customers say

Farmers, pilots, and business owners across North America trust Diamond Doors.


I have repaired and upgraded a lot of hangar doors in my career, and Diamond Doors are by far the best I have worked with. They are safe to operate, sturdy, and well documented.
Frederick Ducharme
We had a 40’ x 16.6’ insulated door installed this summer and we absolutely love it. It seals nicely in winter and has made the building far more usable.
Patrick Fortier
This door has extended my flying hobby by many years. It has worked flawlessly in winter, summer, and everything in between.
Maurice Baril
It seals much better than any overhead door I’ve seen. I’d buy this door again in a heartbeat.
Troy Robertson
They always have great service and great products. Thanks for always taking care of us and our customers!
Joe KlassenCapital Building Systems
Nice solid product. Everything is labelled so it was easy to know where each piece was to go. Customer service was awesome!
Janet Pokrant
Diamond Doors offers solutions that provide a full clear opening to maximize height to fit machinery in you buildings.

FEATURES & OPTIONS

Doors for Large Openings

Are you looking for a commercial door with maximum headroom? Need a cost effective large door solution? A Diamond bifold door gives you just that. Our self-supporting header allows the door to be installed past the roofline, giving you the most overhead room possible. Our quality doors have many features and options, all for a competitive price. Explore our bifold door features and options to learn more.

Why Diamond Doors

Quality custom bi-fold doors engineered for convenience, innovation, and longevity.


  • Autolock system

    Our locking system is engineered specifically for bi-fold doors, not adapted from a generic design. It locks and unlocks automatically, so the door opens and closes with the push of a button and stays secure when closed.

  • Aircraft grade lift cables

    We lift with aircraft grade steel cables rated at a 10X safety factor. Unlike straps, steel cable won’t stretch, fray, or break down in sun and cold, so the door stays balanced and lifts evenly for years.

  • Low maintenance

    Greaseless, maintenance-free hinges and fewer moving parts mean no regular servicing, so your door is a tool that makes life easier, not another piece of equipment to look after.

  • Maximum headroom

    Our self-supporting header lets the door install past the roofline, giving you the most overhead room possible. It also suits retrofits on existing buildings, including quonsets and mitered corners.

  • 1998Building doors since
  • 10XCable safety factor
  • 4–6 wksLead times

Commercial bi-fold door solutions

Installed on the outside of the building and custom sized to virtually any opening, our doors handle structural loads, overhead cranes, and changing weather.

View all door types

Commercial Bi-fold Door Solutions

Our bi-folding overhead garage doors can provide large clear openings for many commercial building types. Installed to the outside of the building, our door system can be designed to fit virtually any size opening. The door can accommodate for a variety of challenges like structural support, overhead cranes, and variations in weather. A versatile and high quality industrial door solution.

Doors Across North America

Diamond Doors is a Canadian commercial bifold door manufacturer located in Winkler, Manitoba, founded by a former commercial pilot and located in the heart of an agricultural community. We are committed to creating exceptional products, never sacrificing quality, and setting the bar for bi-fold door manufacturing. We ship bi-fold doors across the United States and Canada and have been a trusted name since 1998.

Diamond Door Installation

Installation with a Diamond Doors is fast and efficient, with pre-assembled components that reduce on-site labour and setup time. Each system is factory-tested and includes all necessary hardware, allowing for quick, reliable installation.

Installing a bifold door on a large shop

Find a Dealer

Our trusted dealers and installers across North America can help with sales, installation, and service in your area.

Find a Dealer

Become a Dealer

Grow your business with a family-owned manufacturer that supports its dealers, installers, and service professionals.

Become a Dealer