Attach lumber to the face of the garage wall to the edge of the garage door header.
8 foot garage door header size.
Window door garage door headers supporting roof loads only.
Many home builders do not consider this a structural necessity but a style and price choice for the homeowner.
Many homeowners have two cars and need garage space to shelter them both.
Between 4 and 5 feet the header should be built 2 inches wide and 8 inches long while a larger opening needs a header that is 2 by 12.
Cut a 2 x 6 piece of lumber and nail to the face of wall exactly in the center of the garage header.
For double doors garage the standard.
Last pull a measurement from the top of the 2 x 6 piece of lumber that you just installed to the ceiling of the garage.
When in doubt use 2 by 12 inch headers.
If you are putting in an opening between 4 and 5 feet wide then you ll need two 2 by 8 headers.
For single car garages include 8 x 7 ft 8 8 ft 8 9 ft 9 8 ft 10 7 ft and 10 8 ft.
If there isn t enough room above the opening this can t be done without raising the roof of the garage.
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.
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.
There are a few sizes of doors that are considered standard.
Usually 18 ft door used to accommodate two vehicles in the garage.
Most door frames that are 4 feet wide or less require a 2 by 6 header.
Measure the width of your door frame.
Window door garage door headers supporting roof wall floor loads.
If the opening will be 5 to 6 feet wide such as for double doors then you will need two 2 by 10 headers.
18 ft garage door is the size that is suitable for you who have a oversized garage.
The standard size for double garage doors is 16 feet wide and 7 to 8 feet high.
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.