Steel Roof Beams Span Tables

It is intended that these tables will be used by engineers to assist in the preliminary design.

Steel roof beams span tables.

Beam and block load span tables difference between h beam and i structural steam beam how to single ply beam solution professional. Design of single span roof beams in roofs in houses office buidlings schools and other structures. Unique strength unlike other steel rectangular hollow sections rhs boxspan has the unique qualities of having a double thickness flange and a single thickness web that effectively puts the strength where it needs to be. Distance from roof beam to next roof support i e the span of the rafter or roof truss from the roof beam to the next adjacent beam or wall.

Use the span tables below to determine allowable lengths of joists and rafters based on size and standard design loads. You can also use the wood beam calculator from the american wood council website to determine maximum rafter and joist lengths. It contains span tables covering various primary and secondary beam spans with common design floor loadings. In most applications boxspan beams require less depth than timber to reach the same span.

Loads are calculated in accordance with table 3 1 of as nzs 1170 1 2002. Appendix c span tables c 1 introduction this appendix has been taken from the onesteelpublication design note no.