A jackshaft or wall mount garage door opener costs $450 to $800 installed in Florida, and battery backup adds $60 to $150 unless it is included. It mounts on the wall beside the door and turns the torsion tube directly, so it needs no ceiling rail and only a few inches of headroom. It is the answer for a low headroom 1950s garage, for a high ceiling garage with a storage loft, and for a heavy impact-rated door on a torsion system.
A jackshaft opener does away with the ceiling rail entirely. It bolts to the wall next to the door and turns the torsion tube directly, which frees the whole ceiling and needs only a few inches of clearance above the door.
That solves two very different Florida garages. The first is the 1950s to 1970s single door in Hialeah, older Kendall, east Hollywood, St. Petersburg and the older Orlando neighborhoods, where there is no room above the door for a standard rail. The second is the opposite: the newer builds in Lake Nona, Wesley Chapel, Parkland and Cape Coral with 10 and 12 foot ceilings, where the owner wants overhead storage racks or a loft and a rail down the middle of the ceiling is in the way.
It requires a torsion spring system, because it drives the tube, and it requires a door that is properly balanced. That makes it a good match for a heavy impact-rated door, which is nearly always on a torsion system, and a poor match for an old extension spring door unless we convert the springs as part of the job. Most jackshaft units include battery backup or accept one, and the automatic deadbolt they carry is a genuine security feature on a door that is also the front door.
What it is good at
- Needs almost no headroom, so it fits where nothing else will
- Frees the entire garage ceiling for storage racks or a loft
- Drives the torsion tube directly, which suits heavy impact-rated doors
- Quiet, with an automatic deadbolt and battery backup on most models
What it is bad at
- Costs more than any rail-mounted drive
- Requires a torsion spring system, not extension springs
- Requires a well-balanced door, and will not tolerate a bad one
Jackshaft questions
How much headroom does a standard opener need?
A standard rail opener typically needs around 12 to 14 inches above the door, and low-profile kits get that down to about 8. Below that, a wall-mounted jackshaft is the answer, and in the older single door garages around Hialeah and St. Petersburg it is often the only opener that fits.
Can I fit a jackshaft to any door?
It needs a torsion spring system and a door that is correctly balanced. If your door runs on extension springs, converting to torsion is part of the job and it is priced separately rather than hidden in the total. A heavy hurricane-rated door on torsion springs is the ideal case.
Does a jackshaft work in a power outage?
With battery backup, yes, for a limited number of cycles. Without it, the manual release is a cord at the opener on the wall rather than a handle in the middle of the ceiling, so it is easier to reach with a car under the door. Most jackshaft units include the battery or accept one for $60 to $150.
