AS 1684.3 C3 Supp 5-2006
Residential timber-framed construction - Cyclonic areas - C3 Supplement 5: Timber framing span tables - Wind classification C3 - Seasoned softwood - Stress Grade MGPÂ 12 (Supplement to ASÂ 1684.3-2006)
standard by Standards Australia, 01/01/2006