Roofing Australian Standards Timber Span Tables

Roof load width rlw and floor load width flw can be determined from as1684 or from the images below.

Roofing australian standards timber span tables.

A maximum roof pitch of 25 degrees is assumed. R cb150 16 beam span table used w 3600 width of frame rafter span χ 6410 fascia beam span the cb150 16 beam achieves the 6000mm span for the fascia beam and can be used for the rafters. Standards australia is committed to maintaining a contemporary and relevant catalogue of australian standards which add to the net benefit of the australian community. 2 denotes 600 mm rafter spacing only.

The aged standards review is one of the ways in which standards australia gives effect to that commitment. Lintel span sheet roofing tiled roofing roof load width rlw mm 1500 2100 4500 7500 1500 2100 4500 7500 maximum span of lintel mm 90 x 35 600 2000 1800 1400 1200. Joists crippled over supports shall be considered as single span joists. Member span is not suitable for rafter spacing greater than 600mm.

Spacing should be interpreted as the centre to centre distance between adjacent parallel members. Construction details should be in accordance with as1684 2. 1 refer to general notes for information that is relevant for all span tables. Required size for a given span.

Technical diagram span tables f7 rafters on page 35 30mm m aximum allow able sp ans mm sheet roof spacing mm rafter size 600 760 900 1000 1200 66 x 30 1250 1150 1050 1000 950 90 x 30 1650 1550 1550 1400.