Many homeowners have two cars and need garage space to shelter them both.
Header size for double garage door.
The standard size for double garage doors is 16 feet wide and 7 to 8 feet high.
When in doubt build a double 2 12 header sandwich like we explain next.
Window door garage door headers supporting roof wall floor loads.
Many home builders do not consider this a structural necessity but a style and price choice for the homeowner.
Tables providing size selections for various beam spans and loading combinations for southern pine dimension lumber and southern pine glued laminated timber are available for the following applications.
If the opening will be 5 to 6 feet wide such as for double doors then you will need two 2 by 10 headers.
Window door garage door headers supporting roof loads only.
If you are creating an opening no wider than 4 feet for a door or smaller window then you need a 2 by 6 header.
Many 16 x 7 garage doors will be designed with a pair of single 8 foot garage door bays separated by a central post or column.
If there isn t enough room above the opening this can t be done without raising the roof of the garage.
Wide a common patio door width.
In all but the most bizarre situations they ll easily carry the weight for 4 ft.
If you are putting in an opening between 4 and 5 feet wide then you ll need two 2 by 8 headers.