AS 1684.2 N1/N2 Supp 1-2006
Residential timber-framed construction - Non-cyclonic areas - N1/N2 Supplement 1: Timber framing span tables - Wind classification N1/N2 - Seasoned softwood - Stress Grade F5 (Supplement to AS 1684.2-2006)
standard by Standards Australia, 01/01/2006