51 mm to standard lift movements.
Dual track garage door opener.
This very common garage door track option uses up even less headroom space than a 12 radius track.
Maximum garage door height.
The main difference between garage door opener models is how the motor moves the trolley.
Standard garage door openers have a similar design.
On the other hand if there is only 4 in.
Ideal door overhead garage door double track low headroom kit.
When equipping a garage door with an electric door opener add 2 in.
Before you purchase a new garage door opener consider these important factors.
A motor drives a trolley or carriage along a rail.
Garage door size and frequency of use.
Click here to design your custom clopay garage door and schedule an install.
In order to install torsion spring hardware we recommend a clearance of 12 in.
The trolley is connected to the garage door and as the trolley moves it pulls the door open or pushes it closed.
This second track is installed above the horizontal section that is attached to the curve from the vertical track section.
Works on 12 in.
Often referred to as dual track it is best recognized by a second horizontal track.
Garage door parts accessories.
If the garage is the main entrance to your home or you have a one piece door or a heavy oversized garage door you ll probably need one with the lifting power of a 3 4 to 1.
Reduces headroom for ez set torsion spring system to 9 1 2 in.
Reduces headroom for standard and ez set extension spring systems to 4 1 2 in.