Hardware

Most hangar door hardware works as a system, not as individual parts. A cable run needs the cable, a thimble, clamps, and a turnbuckle to be a working assembly, and replacing one without checking the others is how a repair comes back. We stock the cable system, lift straps, bumpers, rail guides, springs, and festoon components for bifold, hydraulic, and rolling doors.

The cable system, part by part

Replace the thimble and clamps with the cable. They are the cheapest parts in the assembly and the ones that decide whether the new cable holds.

Lift strap as a cable replacement

Polyester lift strap takes the place of steel cable on most bifold doors. It does not corrode from the inside the way galvanized cable does, which is the failure mode you cannot inspect for. On buildings where cable is already being replaced early, whether from salt air, humidity, or just cycle count, the strap generally outlasts it. Whether it fits depends on your drum and mounting configuration, so send a photo of the drum end before ordering.

Bumpers, rail guides, and springs

Bumpers absorb the stop at the end of travel so the door is not transferring that shock into the frame and the operator. They are consumable by design: a bumper that has gone hard or split is no longer doing its job, even if it is still bolted in place. Rail guides keep a rolling door tracking true, and extension springs are helical wound coils that hold tension at specific points rather than carrying the door’s weight.

Hangar door hardware: common questions