Garage Door Opening Framing Detail

The irc limits the maximum finished garage door opening width to 18 feet for all three portal frame methods.

Garage door opening framing detail.

For a larger garage multiple portal frames can be used. Four to 6 in. Method pfg portal frame at garage door openings in seismic design categories a b and c. In the illustration we are using for a 12 x 24 garage we are holding the walls back 1 2 from the foundations outer edge so that when we place the 1 2 structural sheathing on the walls it will.

Measure the distance from the bottom plate of the wall to a point that is 1 1 2 inches higher that the garage door height. It s essential to get this measurement right else your newly purchased garage door won t fit the opening or might actually be smaller than the opening. These trimmers should be. Of base material laid down and compacted.

If garage door height extends above the opening the headroom measurement should be adjusted proportionately. Pull a measurement from the floor of your space to the ceiling next to the door opening. Where supporting a roof or one story and a roof a method pfg braced wall panel constructed in accordance with figure r602 10 6 3 shall be permitted on either side of garage door openings. It is a good idea to snap a line on the foundation with a chalk string as to where the outer face of the garage wall framing will sit.

Wood garage door framing sheathing and wood siding need to be 6 in. Frame the rough opening for the garage door to 3 inches wider than the garage door you have selected. This information is noted on irc figures 602 10 6 2 602 10 6 3 and 602 10 6 4. Door height plus 18 is required.

A rough opening refers to the space left inside a door or window frame door in this case where the actual door will be fitted. Cut two 2 x 6 pieces of lumber and attach to the face of the wall running from the edge of your garage door jambs to the ceiling of your garage. Measure area labeled backroom 6 distance is measured from the garage door opening toward the back wall of the garage. Width of garage door opening standard widths are 8 9 10 12 14 16 17 and 18 height of the garage door opening standard residential heights are 7 7 6 8 header the header is ideally a minimum 12 wide micro laminated beam that spans the width of the garage door opening.

1 inch 25 4 mm 1 foot 304 8 mm. Additional back room may be required for automatic garage door.