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Agricultural Bi-fold Doors

Our bifold doors are suited for any agricultural application, including cold storage buildings, insulated shops, livestock barns, fabric buildings, and quonsets.

Need pricing?
Use our online quote builder to choose the door and options best suited for your application. With competitive pricing, we can offer you a high quality door at a price you can afford.

post frame door machine red shop agriculture bifold door
agricultural bifold door
Diamond Doors steel frame and cable lift system with manual lock.

Quality Cable Lift System

At Diamond Doors, we believe that lift cables are the stronger, more reliable choice. Our high-quality cables have superior longevity, don’t overlap, and don’t require frequent tensioning. We believe in our design and back our quality product with comprehensive 10-year cable warranty.

A Safe & Reliable Shop Door

Diamond Doors has multiple safeguards to prevent the door from coming down, including the electric brake and 10x cable safety factor. Cable failure is extremely unlikely and typical cable replacement is due to damage from equipment.

Before & After Diamond Doors

Retrofit Quonset & Shop Doors

If you are looking to upgrade from overhead sectional or sliding doors, Diamond agricultural bifold doors are easily installed on existing agricultural buildings like machine shops, sheds, or quonsets.

Easily Install Yourself

If you have the time you can hang the door yourself to save on install costs. Our doors ship in an “A” frame, fully assembled, pre-wired, and finish painted for your convenience. We also offer installation through a network of dealers and service professionals for busy seasons or when installing yourself isn’t ideal.

Maximize Overhead Space

Installed to the outside, bifold doors do not take up valuable headroom inside your building. With our self-supporting header option the door can even extend past the roofline, giving you the maximum amount of overhead space that your building will allow. This is a popular option for arch rib quonset retrofits.

Convenient Design

With greaseless hinges and less moving parts than other door designs, you won’t be spending time fixing this piece of equipment. Diamond doors are high quality, convenient, and long lasting – our first bifold is still in operation today. Add the auto-lock and remote opener so you can enter and exit with ease.

quonset bifold shop door
Diamond Doors quonset bifold door retrofit with maximum headroom.
quonset door retrofit replace sliding doors
Quonset retrofit from sliding doors to bifold door.

Agricultural Door Features and Options

Diamond shop and barn doors are made specifically to your building, taking into account your building needs, structural support concerns, wind load ratings (hurricane/tornado resistant doors), and headroom desired.

Our agricultural bifold doors are equipped with many industry leading standard features. Since each door is made to project you can add optional upgrades that suit what your looking for.

Explore our interactive door tour to learn more about our features and options.

Electrical Auto-Latch / Auto-Lock

The auto-lock is the easy, reliable locking option for your door. Using this system allows for a complete remote access door, as the lock engages automatically when the door closes and releases when the door is opened.

Non-overlapping Cable Driveline

In contrast to competitor systems, our cables never overlap. Unlike a cable drum, our design has a continuous diameter. The cables wrap onto the driveline itself, instead of overlapping onto a drum. The result? Superior longevity, reduced cable wear, consistent opening speed, and no frequent tensioning.

Reduced Heat Loss

Your door is closed in the winter more than it’s open, so a strong seal and quality insulation are important. The insulation panels are fastened to the exterior of the steel frame, creating a full thermal break. Our insulation package includes a closed cell neoprene foam around the perimeter of the door sealing the door to the building.

Wind Protection Features

Diamond Doors offers a variety of features and options to protect your bifold door against wind and extreme weather. These options may look different depending on your type of building but you can expect quality and security from your door.

Folding Machine Shed Doors

Our bi-folding machine shop doors are a cost effective cold storage door solution. They can be installed on pre-engineered steel, fabric, or post frame buildings.

Standard Doors Include:

  • Manual Lock
  • Finish Painted Steel Frame
  • Maintenance Free Hinges
  • Weather Seal Kit

Door Sizes & Pricing

While we have standard sizes that we manufacture, each door is engineered to your building specifically, taking into account building specifications, features, and options needed. With competitive pricing, we can offer you a high quality door at a price you can afford. You can easily get an estimate with our quote builder or contact our office to speak with a sales associate.

Toll Free 866-325-7600

agricultural shop door installation
Agricultural Shop Door Install on Wood Building

EQUIPMENT SHED/SHOP

If you are looking for an agricultural machine shop or storage shed door we have both standard insulated and non insulated bifold options for you. Order direct from manufacturer. Request a quote to take advantage of our competitive pricing.

30′ x 18′

40′ x 20′

40′ x 18′

50′ x 20′

BUILDING PACKAGES

Looking to order your door with a building package? We partner with steel, wood, and fabric building manufacturers across the USA and Canada. Contact us to find a dealer near you and get maximum headroom for your building.

40′ x 20′

30′ x 20′

40′ x 18′

30′ x 18′

AGRICULTURAL BARNS

Our stainless steel bifold doors are ideal for agricultural barns. They resist corrosion and can be wired to your building PLC to accommodate ventilation needs. Get pricing for our high quality, reliable livestock and poultry barn doors.

16′ x 14′

20′ x 16′

18′ x 16′

40′ x 12′

Testimonials and Projects

Our measure of success is customer satisfaction, and we believe our customers are the best advocates for our product. View their stories and authentic experience with Diamond Doors in our case studies. Explore case studies and project gallery below.

The reason I went with a Diamond Door is it’s well manufactured, it’s sturdy, very well built in my eyes. I really wish I could have installed this door when I built the shop
Ron Loutchan
Case Study

The Loutchan’s Quonset

The Loutchan’s own a third-generation family grain farm. This farm, originally founded by Ron Loutchan’s grandfather, is nearly 100 years old. With a quonset machine shop built in 1989, the Loutchans found that their biggest difficulty was fitting their large equipment through their old machine shop door.

Having lasted the test of time, quonset buildings (like the Loutchans’) are usually still structurally sound after many years. Despite the building being in relatively good condition, the quonset doors have worn, causing them to become difficult to open, or are too small to…

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