C – Paper Sizes

Paper sizes used for envelopes. These correspond to A-sizes (e.g. C4 envelope will hold A4 sheets)

C3 – 324 x 458 mm
C4 – 229 x 324 mm
C5 – 162 x 229 mm
C6 – 114 x 162 mm
DL – 110 x 220 mm (holds A4 folded twice)