There are five basic garage door track options although the first two are by.
Garage door headroom chart.
Measure the width of the garage door opening at its widest point.
Standard 12 radius 3 extension 2.
Used when there is at least the door height plus 12 of headroom clearance.
6 3 4 9 3 4 d h.
Refer to the height chart below for minimum areas required for your door to operate correctly.
2 8 3 track 15 radius thru 18 0 d h.
This option helps provide more vertical space in the garage.
Overhead acting garage door track options are best described by the size or radius of the curved track component or by the amount of low headroom the door must fit in.
Most common garage door track options.
Measure the head room the distance between the top of the door opening or door jamb header and the ceiling of the garage.
Door height centerline of shaft minimum headroom 2 track 15 radius thru 12 0 d h.
3 track headroom door height 12 required sideroom 5 5 required backroom 23 required.
7 feet high typically 4 sections high 8 feet high typically 5 sections high.
Sectional garage door with low head room torsion springs in rear low clearance garage door.
Not possible lower the headboard of door 4 to 12 low headroom double track system 12 and higher.
Springs are mounted at the rear of the horizontal track.
Trolley motor operator or push up operation required not applicable for jackshaft type operators.
C header bracket width.
Door height additional headroom required for drawbar operation chain hoist with cross header shaft requires 3 1 2 additional headroom.
Headroom chart 4 1 2 10.
0 to 4 not possible lower the headboard of door 4 to 8 low headroom double track system 8 and higher.
Low headroom view garage door track options.
If you have 12 305 mm headroom with torsion spring operation and you would like to install an electric operator special top brackets quick turniing brackets are available.
Standard systems require 10 inches of headroom while some require 12 inches while garage door openers often require an additional three inches of clearance.
Extended heights available up to 16 feet high.
If adding a garage door opener onto an existing door.
2 track headroom door height 12 required sideroom 4 5 required backroom 23 required.
Be sure to inspect for any irregularities in the opening or measurements such as irregular door jambs.
2 7 1 2 thru 16 0 d h.
H door height h total height d 5 2 track 11 3 track.
On either side of opening.