DL flyers (99 x 210 mm), A5 folded once, A4 folded into thirds
162 x 229
A5, A4 folded once
229 x 324
A4 unfolded, A3 folded once
324 x 458
Envelopes can be plain face (no window) or window face (has a clear window on the front) For rules and regulations regarding postage please refer to Australia Post site.
Thickness of paper and card stocks
The thickness of a sheet of paper is measured in gsm (grams per square metre). For example, 80 gsm is thickness of the paper used in most household printers and photocopiers and 280 gsm is the thickness used for paperback book covers.