Paper ‘A’ sizes (general printing and stationery, posters etc.)
AO 841 x 1189 (all sizes are in millimetres)
A1 594 x 841
A2 420 x 594
A3 297 x 420
A4 210 x 297
A5 148 x 210
A6 105 x 148
A7 74 x 105
Paper ‘B’ sizes (posters, wall charts etc.)
B0 1000 x 1414
B1 707 x 1000
B2 500 x 707
B3 353 x 500
B4 250 x 353
B5 176 x 250
B6 125 x 176
Paper RA & SRA sizes (RA allows for trimming after printing; SRA is slightly larger to allow for bleed or extra trimming)
RA0 860 x 1220
RA1 610 x 860
RA2 430 x 610
SRA0 900 x 1280
SRA1 640 x 900
SRA2 450 x 640
Envelopes (for envelopes and folders to take ‘A’ series – e.g. C4 for A4)
C0 917 x 1297
C1 648 x 917
C2 458 x 648
C3 324 x 458
C4 229 x 324
C5 162 x 229
C6 114 x 162
C7 81 x 114
C8 57 x 81
DL 110 x 220
C7/6 81 x 162