Replacing A Garage Door Header From 7 To 8 High

If there isn t enough room above the opening this can t be done without raising the roof of the garage.
Replacing a garage door header from 7 to 8 high. The person doing the takeoff had interpreted my request for an 18 9 garage door header to the least expensive 20 long beam. The beam they have specified now is 3 1 2 x 12 x 18 9. A garage door is a large door on a garage that opens either manually or by an electric motor a garage door opener garage doors are frequently large enough to accommodate automobiles and other vehicles. This header should be an inch and a half higher than the garage door and 9 inches wider than the door.
Over the years the garage door header has sagged du. A minimum depth of the door s height plus 18 is required for manually operated doors whereas a garage door opener can require the door height plus an additional 3 to 4 for standard 7 or 8 high doors depending on model. These will help to support the new garage door header. On previous projects i have been supplied a glu lam boise makes specifically for garage door headers that was 3 1 2 x 11 1 4 x 18 9.
All of the rough framing has just been completed. Take some 2x4 s and use these to add 3 rows of supporting frames around the sides of the door and just below the header. Several garage door people have told me they want 18. Push the new header into place.
If this is going to be a problem i guess we could lower the height of the opening for the door 6 and use a 7 6 high garage door. Does 15 leave enough room for the door tracks and a center mount chain driven electric door opener. The span above the door opening is framed with a long header that supports the wall area above the door and this header will need to be raised or rebuilt in order to increase the overall door size. This is the distance from the garage door opening to the back wall of the garage.