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Delta Panels Pty.Ltd.   ABN: 11 147 861 292          A: 731 Boundary Road, Richlands, Qld 4077
P: +61 7 3271 2170     E: info@deltapanels.com    W: www.deltapanels.com    
Version Date: 
08.05.2023
  
STEP 1        DETERMINING CORRECT WIND SPEED
Whether you are building a stand-alone Carport or adding a Patio extension 
to your home, determining the correct wind rating is essential when 
considering the construction design and the materials that will be used.
There are 4 different factors that influence the wind classification, they are:-
-   Region
-   Terrain Category
-   Shielding Determination
-   Topographic Effect
Please remember that this is a guide only, check with your local authority to 
determine your exact rating. 
For a detailed analysis refer to the Australian Standard AS/NZS 1170.2:2021, 
the approach described here follows the AS 4055:2021 - Residential wind 
code method.
This approach is only suitable for structures up to 2 storeys high and no 
wider than 16m and 8.5m high. Outside these limitations, we recommend 
that you engage a structural engineer to provide advice on the approach 
suitable to your situation.
Step 1.1 - Region       Select the Region

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