Garage Door Lvl Header Framing
Header the header is ideally a minimum 12 wide micro laminated beam that spans the width of the garage door opening.
Garage door lvl header framing. All other data is available on page 121 of the 2012 international residential code. Lvl 8 9 parallam psl 10 11 snow roof load tables. Depending on your opening the lumber width will be 6 to 8 wide. 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.
Microllam lvl headers microllam lvl headers work well in applications from window openings to garage door headers. Span charts and 2012 irc building codes for girders and headers. Lp solidstart lvl is not cambered. Continuous restraint is defined as a maximum unbraced length of 24.
If the door is 7 tall frame the opening 7 1 5. Timberstrand lsl 12 13 microllam lvl 14 15 parallam psl 16 17 non snow roof load tables timberstrand lsl 18 19 microllam lvl 20 21 parallam psl 22 23 beam details 24 window and door. On previous projects i have been supplied a glu lam boise makes specifically for garage door headers that was 3 1 2 x 11 1 4 x 18 9. To finish the opening cut the header and jambs from 2 lumber.
Frame the rough opening to a height that is 1 5 taller than the door that you have selected. The beam they have specified now is 3 1 2 x 12 x 18 9. The person doing the takeoff had interpreted my request for an 18 9 garage door header to the least expensive 20 long beam. This restraint is normally provided by sheathing and or other framing.
These charts are for 30 pound per square foot snow load on the roof. Lp solidstart lvl sized with the tables and design values in this guide requires continuous lateral restraint of the compression edge. Header details 24 25 nailing on narrow face 25 allowable holes 26.