Standard Height Of Roof Truss

Bt b tc 6 6 common truss configurations for the most widely designed roof shapes.

Standard height of roof truss.

For the top chord lumber. A 33 9 0 33 ft 9 in. And zero 16ths truss on a 4 12 pitch would be 33 75 ft. A standard overhang is 16 24 inches but the overhang can be any length you wish.

Contact your localalpine trussmanufacturerorofficeformoreinformation. A truss with the same pitch and heel on both sides and a peak at the center is called a common truss. Depending on your roof slope add 4 to 5 inches for heel height. We included a roof pitch chart below the 7 12 example image and the calculator below that.

If this isn t practical then perform the same measurement on the underside of the roof. Height calculation for a common truss calculate the height of a common truss using the building width and the slope of the roof. Take 1 2 the span and multiple it by the pitch. Trusses with an asterisk that exceed 14 in height may be shipped in two pieces.

If the overhang exceeds 2 5 feet we will need to use a larger top chord for the overhang typically a 2 6 top chord for the truss. Without knowing the width of the building it is impossible to come up with a specific answer. We can also build a cantilever for the overhang which is where the bottom chord of the truss continues beyond the wall. If you can t get the heel height most residential trusses will have a 3 top cord.

This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement. Then add about 4 in. Mono used where the roof is required to. Common or standard trusses are symmetrical and have standard four inch heels.

Or 5 11 8 5 ft 11 in. The 6 12 pitch means for every 12 inches horizontally you rise 6 inches vertically. The actual height of any truss depends on the width of the structure being built. An approximate height of a pitched truss can be calculated with the following formula.