These are the most common paper sizes used in Australia.
A7: 74 x 105mm
A6: 105 x 148mm
DL: 99 x 210mm
A5: 148 x 210mm
A4: 210 x 297mm
A3: 297 x 420mm
A2: 420 x 594mm
A1: 594 x 840mm
A0: 840 x 1188mm
Business Card: 90x55mm
These are the most common envelope sizes used in Australia.
11B: 145 x 90mm
DL: 220 x 110mm
DLX: 235 x 120mm
C6: 162 x 114mm
B6: 176 x 125mm
C5: 229 x 162mm
B5: 250 x 175mm
C4: 324 x 229mm
B4: 353 x 250mm
Commonly Used Envelope Terms:
Banker Envelope: Envelope that closes with a triangular-shaped flap on the long side.
Wallet Envelope: Envelope that closes with a rectangular-shaped flap on the long side.
Pocket Envelope: Envelope that closes on the short side.
Press Seal / Self Seal: No moisture is required to seal the envelope. When the flap is closed, the adhesive on the flap is activated.
Peel & Seal / Strip Seal: A strip must be removed from the envelope's flap to expose the adhesive which will seal it.
Lick & Stick / Moist Seal: Moisture must be applied to the envelope to activate the adhesive. Only lick & stick envelopes can be used with commercial machinery used to fill and seal envelopes.
Plain Envelope: Envelope with no Window.
Window (Faced) Envelope: Envelope with a window cut out of the front to display an address printed on an inserted item.