Garage Door Opening Header Size

Frame the rough opening to a height that is 1 5 taller than the door that you have selected.

Garage door opening header size.

If the opening will be 5 to 6 feet wide such as for double doors then you will need two 2 by 10 headers. Measure the width of your door frame. When in doubt use 2 by 12 inch headers. Frame the rough opening to 3 inches wider than the garage door size you have selected.

Window door garage door headers supporting roof loads only. 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. It is worth noting that the 18 foot garage door header application pushed timberstrand beyond its structural limit. The size of the door will.

Window door garage door headers supporting roof wall floor loads. Although single plies are permitted they are not recommended. For instance if you have a 16 door and are using river stones that are approximately 2 to 2 1 2 you will want the rough opening to be roughly pun intended 16 6. Timberstrand header comes only in 3 widths in depths that range from 4 3 8 to 18.

If you are installing a 9 wide door the opening will be 9 3 wide. For an opening 6 to 7 feet wide you will need two 2 by 12 headers. 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. Next measure the sideroom or space available on the left and right sides of the opening.

Most door frames that are 4 feet wide or less require a 2 by 6 header. Notches on the outer thirds must not exceed 1 6 of the width of the board. Begin by using a tape measure to determine the width and height of the door opening in inches. Both headers and girders are beams that are oriented horizontally and transfer load down to walls piers or posts.

Their is no notching permitted in the center third of any beam.