Garage Door Opening Header Size

Window door garage door headers supporting roof wall floor loads.

Garage door opening header size.

Their is no notching permitted in the center third of any beam. For an opening 6 to 7 feet wide you will need two 2 by 12 headers. Most vertical track systems. It is worth noting that the 18 foot garage door header application pushed timberstrand beyond its structural limit.

Begin by using a tape measure to determine the width and height of the door opening in inches. Frame the rough opening to a height that is 1 5 taller than the door that you have selected. Notches on the outer thirds must not exceed 1 6 of the width of the board. Both headers and girders are beams that are oriented horizontally and transfer load down to walls piers or posts.

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. 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. 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. Most door frames that are 4 feet wide or less require a 2 by 6 header. Next measure the sideroom or space available on the left and right sides of the opening. If the opening will be 5 to 6 feet wide such as for double doors then you will need two 2 by 10 headers.

If you are installing a 9 wide door the opening will be 9 3 wide. Although single plies are permitted they are not recommended. The size of the door will. If you are putting in an opening between 4 and 5 feet wide then you ll need two 2 by 8 headers.

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.