Wind speed and Queensland building codesThere have been a few questions about what rating means what so i did a bit of homework and came up with the following information:
Qld timber framing wind speeds C = Cyclone area. On or above the tropic of Capricorn
N = Non Cyclone area. Below the Tropic of Capricorn
C1 50 meters per sec = 150KPH
C2 61 metres per sec = 219 KPH
C3 74 metres per sec = 266KPH
N1 34 meters per sec = 122KPH
N2 40 meters per sec = 144KPH
N3 50 meters per sec = 150KPH
N4 61 meters per sec = 219KPH