Roof Truss 2x4 Or 2x6

The cross sectional area of 2x4 16 and 2x6 24 is almost identical.

Roof truss 2x4 or 2x6.

Can 2 4 roof purlins span 12 feet. 72 24 30 2x6 2. You can use either 2 6 or 2 4 rafters for roofs with a 3 12 pitch or greater but it depends on the overall size of your shed. 4 oc 25 5 0 5 psf truss member sizing no ceiling dimensional lumber required.

If in fact the center bearing wall is carrying 5 8 of the roof load then a stud directly under a 24 oc truss will support a maximum design load of 1155 lbs. A single spf 2 9 2x4 that s restrained laterally by sheathing or blocking can support 1820 lbs and a similar 2x6 can support 7061 lbs without buckling almost 4 x as much. Structural capacity of 2x4 vs 2x6 from a structural engineer. Reader dave in michigan writes.

For roofs that won t experience heavy snow loads a gable roof can span up to 22 with 2 4 rafters. That is exactly what i have double trusses on each side of a post on 12 centers. So for direct compression not considering buckling they have the. Roof truss span tables alpine engineered products 15 top chord 2x4 2x6 2x6 2x4 2x6 2x6 2x4 2x6 2x6 2x4 2x6 2x6 bottom chord 2x4 2x4 2x6 2x4 2x4 2x6 2x4 2x4 2x6 2x4 2x4 2x6 2 12 24 24 33 27 27 37 31 31 43 33 33 46 2 5 12 29 29 39 33 33 45 37 38 52 39 40 55 3 12 34 34 46 37 39 53 40 44 60 43 46 64 3 5 12 39 39 53 41 44 61 44 50 65 47 52 70.

72 24 36 2x6 1. Hi i saw on your webpage the pole barn guru stated the trusses could be spaced 12 apart i called and was told it is a double truss one on each side of a post that is on 12 centers. For roofs that will experience heavy snow or wind and will span the same distance use 2 6 rafters.