Roofing Australian Standards Timber Span Tables

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.

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. Required size for a given span. Table assumes a maximum flooring mass of 40kg. Spacing should be interpreted as the centre to centre distance between adjacent parallel members.

The aged standards review is one of the ways in which standards australia gives effect to that commitment. Construction details should be in accordance with as1684 2. 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. 2 denotes 600 mm rafter spacing only.

Member span is not suitable for rafter spacing greater than 600mm. A maximum roof pitch of 25 degrees is assumed. Standards australia is committed to maintaining a contemporary and relevant catalogue of australian standards which add to the net benefit of the australian community. 3 for design parameters refer to figure 6 22 as1684 2 and 3.

1 refer to general notes for information that is relevant for all span tables.