3 track headroom 8 5 required sideroom 9 required backroom door height 32 required.
Low headroom rear mount garage door.
The clopay garage door low headroom conversion kit bay be required if you have less than 15 in.
Low headroom rear mount spring.
2 track headroom 4 5 required sideroom 7 5 required backroom door height 30 required.
Of headroom in your garage see more info below for a pdf of our how to measure guide.
Up to 3 of additional headroom may be required for a trolley door opener.
Raynor s low headroom front mount springs package reduces the height requirement to 8 1 4 of over door height while low headroom rear mount springs require as little as 4 plus 2 with motor operator.
Used when headroom is extremely limited for proper door operation.
Requires a minimum of 4 5 of headroom.