Several trusses are needed to build the frame of the shed roof. Each roof truss is 16 inches apart, as measured from the centers of the beam widths.
The roof could be constructed so that the ridgeline of the roof is parallel to the longest dimension of the shed (first
picture below) or it could be constructed so that the ridgeline of the roof is parallel to the shortest dimension of the
shed (second picture below).
ridgeline
ridgeline
10 ft
shed
shed
18 ft
30 ft
Calculate how many roof trusses would be needed to frame the roof if the ridgeline runs parallel to the longest side of
the shed. Enter this number in the response box.