OVERVIEW

Every Diamond door starts as a simple steel frame, carefully manufactured by our CWB certified welding team. We use HSS tubular steel to build a lightweight yet durable door that maximizes the strength of your door while minimizing the loads on your building.

We design each door according to the wind loads in your region, door size, and the weight of the exterior finishing.

The frame consists of vertical and horizontal members, as well as a triple internal truss system. This system adds extra strength and prevents deflection when the door is opened. The three trusses are placed inside the door to provide a polished exterior look.

We finish each door with a high quality, two-part polyurethane paint, which offers a long lasting and durable finish.

With the exception of very large doors, we ship each door directly to your building site with the frame (and door components) fully assembled. This helps you save valuable time and costs on installation.

OVERVIEW

The Diamond Doors weather seal kit protects your building against harsh weather, wind, and pests by sealing the top and bottom of the door. The weather seal kit comes standard on every Diamond door.

The top weather seal is a rubberized canvas, installed between the building and the door frame to seal the area around the door hinges. The canvas is fastened between the door frame and top trim. The other side is fastened to the building behind cladding. This top weather seal comes standard in white, but is also available in black and charcoal upon request.

The bottom rubber seal covers the space between the lower door frame and your finished floor, fastened to the bottom of the door by an aluminum track. Ribs on the rubber seal prevent it from freezing to the ground. These seals are available in different sizes to accommodate uneven finished floors and changes due to frost heaving.

OVERVIEW

The up/down/stop controller is a wall mounted station that allows you to control the operation of your bifold door. It can be easily mounted on either side of your door, usually on the side nearest to your pedestrian door.

We provide the wiring necessary to mount your up/down/stop controller, with thorough instructions in our electrical manual about the installation process. A qualified electrician should complete all electrical connections before operating the door.

Our controller meets North American electrical standards, with NEMA 4/12 and CSL/UL certifications.

OVERVIEW

“Y” pushers, located at the center hinge of your bifold door, provide an outward push as your door opens. This causes the door to fold and provides a smooth opening motion.

The number of “Y” pushers is determined by the number of cables on your door, with one pusher per cable. The size of the “Y” pusher varies depending on the height of the door, with taller doors requiring longer “Y” pushers. “Y” pusher lengths range from 12 inches to 30 inches.

The “Y” pusher is made from two main components – a galvanized steel tube which is attached to the door frame and a high-quality plastic end. This end prevents cable wear by providing a smooth surface for the cable to glide along as the door opens. We have made them yellow for clearance visibility.

OVERVIEW

The single lever locking system (or manual lock) secures your door when closed, protecting your plane or equipment from harsh weather or unwanted visitors. It uses a simple design to improve reliability and make maintenance easier.

This system uses a single lever to operate, locking and unlocking both sides of the door at the same time. It can be placed on either the left or right side of door for quick access, or to accommodate windows and pedestrian doors. This option comes standard with every Diamond Door, providing convenient door access.

The locking system consists of three main components – lock rods, locking fingers, and locking catches. These components work together to secure the door against the building frame. It’s a simple design that improves reliability and makes maintenance easier.

Each door is also equipped with a Single Point Lock Switch, which ensures that the door is fully unlocked before the door begins to operate. This prevents structural damage to your door and building, and protects your motor from overuse.

We install your locking system in factory, simplifying door installation and set up.

Looking for something easier? We also offer an automatic locking system for our bifold doors. Learn more about that by visiting our Electric Auto-Lock page.

OVERVIEW

Door rollers run vertically on the door track, supporting the load from the bottom half of the bifold door. At Diamond Doors, we use industrial grade bearings to provide smooth operation as the door opens and closes. However, our roller design is not just a simple bearing.

We use a double sealed bearings to extend the life of the door rollers. These bearings are pressed into a stainless steel beveled sleeve. This sleeve acts as a cushion to protect the bearing from damage due to bumps along the roller track, while the beveled edges protect the roller track from the sharp edges of the bearing itself. The result is a bifold door roller with superior longevity, no maintenance, and smooth operation.

Diamond Doors offers two roller style – the cantilever roller and inset roller. The roller type is chosen based on the door application and size of the door.

The cantilever roller is our standard roller style for doors less than 60’ wide. It provides easier installation, reliable operation, and an improved door seal. In comparison, our inset roller design offers better load transfer into the door frame and is more effective for larger doors and loads.

OVERVIEW

Photo electric safety sensors (photo eyes) stop the door from closing if there is anything blocking the door’s opening. This helps prevent injury to people and damage to your equipment if the door is accidentally closed while something is in the doorway. We include a set of photo eyes with every door, which allows for convenient, push-and-walk-away door operation much like a residential garage door.

For commercial and public buildings, we recommend using a series of photo eyes to create a photo curtain. This offers added safety in high traffic areas.

OVERVIEW

We provide mounting hardware for each bifold door, which is specified based on your building style. For example, a wood building will require mounting hardware such as bolts, cable anchor kits, and J tracks, while a steel building is typically welded directly to the header of the building (although it can also be mounted).

Custom mounting hardware is also available for unique building or header designs.

We’ve designed our door for easy installation. Our installation manual provides detailed instructions on how to mount the door to your building, and our service team is always available via phone or email to help.

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Lift cables wrap around the driveline as it turns, providing the lifting force necessary to raise the bifold door. Our proven lift systems are more reliable, last longer, and are safer than other lift options.

We use specialized cables with a fine weave and nylon core that are more flexible and less susceptible to damage. These cables have 18 braids with 7 strands per braid. Common competitor door cables have 7 braids, with 19 strands per braid. This results in a stiffer cable that wears out faster.

Another advantage of the Diamond Doors cable lift system is our simplified design. With almost no moving parts, and a system that prevents the cables from overlapping (which is the primary cause of cable failure), it’s built for reliability and longevity. Our cables wrap consistently, every time.

Our 10:1 safety factor ensures that even if one, or multiple cables fail, your door will remain safely in place even while open. The added cables also help to better distribute the loads on the building.

Finally, cables are a low maintenance lift system option. Because they have their initial stretch upon installation, they rarely need tensioning throughout their lifespan. When tensioning is required on a Diamond door, cables can easily be adjusted at ground level. We provide thorough instructions on how to do this in our owners manual.

OVERVIEW

The J channel track design is exclusive to Diamond Doors. It keeps the door rollers against the building column and provides a smooth surface for the bottom roller to move along. They are typically used on wood buildings and are fastened directly to the building’s post. However, they can also be used on other building types.

The J channel track is shaped like a “J”. This shape keeps the rollers against the building as the door operates and prevents the door from pushing outward when there is positive air pressure inside the building. Nylon roller wedges installed at the bottom of the J channel track guide the rollers into a pocket to seal the bottom of the door against the building when the door is closed.

J channel tracks are delivered cut to length and pre-drilled for easy installation. The necessary mounting hardware is included in your order. An access hatch at the bottom of the track offers easy access to the door rollers if they require maintenance.