GUIDE TO STANDARD ENVELOPE SIZES
A handy reference guide of standard envelope sizes used in the print industry to help you plan for future print projects.
D-Series envelope sizes
All D-Series envelopes can hold an A5 folded in half
or an A4 piece of paper folded into three panels.
DL Envelope Size 110mm x 220mm
This is the most commonly used envelope.
DLX Envelope Size 120mm x 235mm
DLE Envelope Size 115mm x 225mm
C-Series envelope sizes
C3 Envelope 324mm x 458mm
Holds a full piece of A3 paper.
C4 Envelope 229mm x 324mm
Holds a full piece of A4 paper.
C5 Envelope 162mm x 229mm
Holds a full piece of A5 paper, or an A4 folded in half.
C6 Envelope 114mm x 162mm
Holds a full piece of A6, an A5 folded into half
or an A4 folded in quarters
B-Series envelope sizes
B4 Envelope 353mm x 250mm
Best for holding newspapers.
B5 Envelope 250mm x 176mm
B6 Envelope 176mm x 125mm