Why a "Wind Rating" is important for the design of your new Aussie Steel Shed

Why a "Wind Rating" is important for the design of your new Aussie Steel Shed

A wind rating is important in the design of a new Aussie Steel Shed because it helps to determine the wind speed the structure can withstand without being damaged. High wind speeds can cause significant damage to a shed, making it important to ensure that the design can withstand the wind loads for the specific location where it will be built. The wind rating is typically specified by local council building codes, which are based on the wind speeds commonly experienced in a particular area, and it helps to ensure that the shed is safe and secure.

In its simplest form, the "wind rating" for where you want your new shed, will determine the design, the level of engineering and ultimately the cost of your new steel shed.

The more "engineering" required (I.E. The stronger the design to cope with the winds) the more steel will be needed and stronger fastenings required and thus your shed is going to cost a bit more. 

Here in Australia, we basically have 4 wind zones. 2 are pretty standard, and 2 are classified as "cyclonic zones". 


Australian Building Wind Zones

The image above, though quite simplified, gives you are very good idea on how your new shed would be rated. Note that the region B and C zones usually extend approximately 100KM wide, but these can vary with local council requirements and should always be checked before committing to build.

Cyclonic (region C & D) will always require a lot more strength in the structure, to ensure that your new shed won't disintegrate with really bad weather or cyclonic conditions, and potentially cause damage or even injury. Extra strength means more steel, means an increase in costs. 

When you are trying to get quotes on a new shed, you will see that most companies will request the exact address for the location of the shed. The reason for this is that a final design cannot be put together until the wind loading/rating for that exact location is calculated. The map above is a good reference, but each specific location needs to be rated before a final engineered ( to the location) design can be generated for a bill of materials (and thus your final costing).

If you are keen to get a quote from our experienced design team, or to discuss wind ratings and design, please let us know via the form below.


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