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.

Begin by using a tape measure to determine the width and height of the door opening in inches. When in doubt use 2 by 12 inch headers. If the opening will be 5 to 6 feet wide such as for double doors then you will need two 2 by 10 headers. Timberstrand header comes only in 3 widths in depths that range from 4 3 8 to 18.

Window door garage door headers supporting roof wall floor loads. Their is no notching permitted in the center third of any beam. The size of the door will. Window door garage door headers supporting roof loads only.

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. 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. Measure the width of your door frame.

Notches on the outer thirds must not exceed 1 6 of the width of the board. Measure the head room the distance between the top. 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 you are installing a 9 wide door the opening will be 9 3 wide.

Frame the rough opening to 3 inches wider than the garage door size you have selected. 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. Both headers and girders are beams that are oriented horizontally and transfer load down to walls piers or posts.

For an opening 6 to 7 feet wide you will need two 2 by 12 headers.