Garage Door Header Detail

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Garage door header detail.

If the door is 7 tall frame the opening 7 1 5. Choose from carriage house traditional and commercial garage doors in steel wood and wood composite materials. Portal frame details within the irc specify simple span headers with a maximum finished opening width of 18. Header the header is ideally a minimum 12 wide micro laminated beam that spans the width of the garage door opening.

If it s 9ft the opening must be 9ft 3 inches and so on. In an attempt to construct portal frames some garages are built with one continuous garage header extending over two or three garage door openings as shown in figure a. 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. The width of the rough opening should be 3 inches greater than the width of the garage door you are purchasing.

Amarr offers 300 styles of garage doors. Depending on your opening the lumber width will be 6 to 8 wide. For instance if the width of the garage door is 8ft the rough opening should be 8ft 3 inches wide. Frame the rough opening to a height that is 1 5 taller than the door that you have selected.

To finish the opening cut the header and jambs from 2 lumber.