Floor Load Width Single Span

Required size for a given span.

Floor load width single span.

Live load l 480 total load l 360 5. Roof load width rlw and floor load width flw can be determined from as1684 or from the images below. Let s expand our house beyond that 17 2 span capability to 24 feet wide. So the house dimensions will now be 24 x 13.

1 psf lb f ft 2 47 88 n m 2. Maximum span of 2x6 floor joist. In the example the joists have a spacing of 16 inches and a span of 11 feet 2 inches. Live load represents the weight of furniture snow etc.

I asked my local building official how he checks a deck plan to make sure the joist size and spacing combination will meet requirements of the building code he goes to the 40 lb. Roof rafter span use this table to determine the maximum lengths of roof rafters based on species and grade of lumber spacing dimensions load and slope. 1 ft 0 3048 m. Floor joist span use this table to determine the maximum lengths of floor joists based on species of lumber joist spacing and joist size.

Top and bottom chords braced by structural sheathing 6. Spacing should be interpreted as the centre to centre distance between adjacent parallel members. The width is considerably more important than the thickness of a board. Dead load is the weight of the structure and any fixed items.

Spans shown are in feet 4. Dead load weight of structure and fixed loads 10 lbs ft 2. Next consult a span table to cross reference the spacing and span to find the required fb value for that table s load limits. The widest span in the floor joist span table in part 2 of this tutorial module showed that floor joists can span 17 2 if they are 2 x 12s spaced 12 o c.

Openings are to be located in the center of the span max opening width is 24 inches 7. Maximum floor joist span for no. This chart is for basic reference only. Tcdl 10 psf and bcdl 5 psf 3.

Live load floor joist span tables in chapter 7 of the state residential code based on the 2012 international residential code. If you have any questions you should contact an engineer. Tcll top chord floor live load 2. 2 grade of douglas fir are indicated below.