Maximum Span Of Roof Trusses In Ft

For example an 8 10 metre span for a timber truss is quite a long one and can lead to problems.

Maximum span of roof trusses in ft.

Dead load weight of structure and fixed loads 15 lbs ft 2. So the space between rafters can be greater without reducing the maximum span. Contact your localalpine trussmanufacturerorofficeformoreinformation. Below is a chart that we use for quick reference to match floor truss height and spacing with any given span.

Bear in mind that this span chart shows the absolute maximum span for a truss with no hvac. Span calculator for wood joists and rafters also available for the android os. One of the biggest advantages of floor trusses is that they can span further than conventional framing i e. To achieve maximum indicated spans trusses may require six or more panels.

Bt b tc 6 6 common truss configurations for the most widely designed roof shapes. Also available for the android os. 2x10 s or 2x12 s or i joists. The same concept holds true for roof trusses.

1 ft 0 3048 m. 1 psf lb f ft 2 47 88 n m 2. This is the most common as the typical span is 15 feet. Trusses with an asterisk that exceed 14 in height may be shipped in two pieces.

Live load 20 lbs ft 2 956 n m 2. Mono used where the roof is required to. 2 are indicated below. The size of a timber truss is an important part of designing a building and while there are no set maximum sizes there are some best practices.

Live load is weight of furniture wind snow and more. Douglas fir maximum horizontal roof rafter span for lumber grade selected structural and no.