Roof Truss Span Tables Metric

Spacing should be interpreted as the centre to centre distance between adjacent parallel members.

Roof truss span tables metric.

These steel joints are needed to support the overall truss. The more complex the truss framework is the greater quantity of these joints will be required. Floor joist span use this table to determine the maximum lengths of floor joists based on species of lumber joist spacing and joist size. The same thing is true for the bridge of the truss.

The load span tables shown below demonstrate only a tiny subset of the possible combinations available with trussteel cfs roof trusses. Required size for a given span. 05425 cold formed steel trusses roof truss spans every trussteel roof truss is a custom design based upon the unique load span bearing use and code criteria of a particular project. Roof floor truss manual 7 31 08 10 43 am page 12.

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. And parallel to floor truss span strongback lateral supports 24 max. Rafter span tables use these tables to determine lengths sizes and spacing of rafters based on a variety of factors such as species load grade spacing and pitch. Visit the roof framing page for more information on cutting roof rafters and visit the roof pitch calculator for determining rafter lengths based on rise and run.

Included are a series of representative roof truss span tables that will give you an idea of the truss spans available for a particular load condition load duration lumber type and truss configuration. Span tables f7 rafters a maximum roof pitch of 25 degrees is assumed. Keep in mind that these tables are for estimations only. Finally the truss calculator will compute the best dimensional method to connect the pieces of the truss with steel joints and a bridge.

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. You can use sbca s span charts to roughly determine truss sizes available.