Im not getting an engineer involved b c this is a budget build for my wifes aunt.
20 ft garage door header.
Window door garage door headers supporting roof loads only.
Header requirement 2 at minimum the header should be 12 wide with doubled 2 4 at opening and ceiling running the width of the door with a 2 4 in the center of the opening for the center bracket to attach to.
This product is new and distributors don t want to stockpile inventory.
Most door frames that are 4 feet wide or less require a 2 by 6 header.
These small areas are usually door opening on the interior and people are trained that these areas are the strongest place in a house to be in the case of an emergency.
Wide a common patio door width.
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.
The procedure for constructing a header for 6 inch exterior wall framing can be modified for any wall thickness.
It is worth noting that the 18 foot garage door header application pushed timberstrand beyond its structural limit.
Measure the width of your door frame.
When in doubt use 2 by 12 inch headers.
It worked for most of the applications in our case house.
Timberstrand header comes only in 3 widths in depths that range from 4 3 8 to 18.
Building a structural header for a garage door opening can be handled on the jobsite and will offer the same structural support as more expensive solid wood beams.
Bearing according to the 2012 irc codes any beam joist or header shall never have a bearing of less than 1 1 2.
Header the header is ideally a minimum 12 wide micro laminated beam that spans the width of the garage door opening.
20 header over garage door.
Calculating header size is no picnic as you learn how to frame a window.
Table number grade live or ground snow load psf dead load psf load duration factor c d.