Garage Door Opening Header Size

Window door garage door headers supporting roof loads only.

Garage door opening header size.

Frame the rough opening to a height that is 1 5 taller than the door that you have selected. Their is no notching permitted in the center third of any beam. Timberstrand header comes only in 3 widths in depths that range from 4 3 8 to 18. 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 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. If you are installing a 9 wide door the opening will be 9 3 wide. 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. Window door garage door headers supporting roof wall floor loads. It is worth noting that the 18 foot garage door header application pushed timberstrand beyond its structural limit. For an opening 6 to 7 feet wide you will need two 2 by 12 headers.

Frame the rough opening to 3 inches wider than the garage door size you have selected. Measure the head room the distance between the top. Most vertical track systems. When in doubt use 2 by 12 inch headers.

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. Notches on the outer thirds must not exceed 1 6 of the width of the board. The size of the door will.

Although single plies are permitted they are not recommended.