Double Track Low Headroom Garage Door
51 mm to standard lift movements.
Double track low headroom garage door. 10 254 mm radius 3 note. Garage doors installed with double track low headroom hardware with liftmaster 8500 garage door openers. The double track low headroom lhr conver sion kit is designed to modify the minimum head room clearance required. Used when headroom is extremely limited for proper door operation.
To determine the radius of the track measure from the center point of the radius to the bottom of the track as shown by dimension r. 1 garaga recommends the use of torsion springs for improves door operation and increased safety. Low headroom track this very common garage door track option uses up even less headroom space than a 12 radius track. This second track is installed above the horizontal section that is attached to the curve from the vertical track section.
Ideal door overhead garage door double track low headroom kit. Low headroom rear mount spring. The top section makes the turn quicker while opening. 2 track headroom 4 5 required sideroom 7 5 required backroom door height 30 required.
See chart below this kit works with both 12 and 15 radius horizontal track. 121 mm to 12 in. Easily converts your new track to accommodate your low headroom application. 3 track headroom 8 5 required sideroom 9 required backroom door height 32 required.
Of headroom in your garage see more info below for a pdf of our how to measure guide. 11 mail in rebate good through 9 19 20. This situation requires double low headroom tracks. The clopay garage door low headroom conversion kit bay be required if you have less than 15 in.
Requires a minimum of 4 5 of headroom. When equipping a garage door with an electric door opener add 2 in. If an electric operator is being used add 2 51 mm to the headroom required. Double track system 8 216 mm.
304 mm available it is best to use a dual track system designed for low headroom. On the other hand if there is only 4 in. Some garages do not have the minimum headroom requirements for a standard garage door. 2 garaga strongly recommends the use of safety cables with extension springs for security.
The top roller runs down the upper horizontal track while the remaining rollers go down the lower horizontal track.