At Isafold we print all types of stationary needed in the office.
The most common standards regarding stationary are:
Business cards: 5.5 x 8.5 cm
Letter paper: A4, 21 x 29.7 cm
M65 envelopes (the common window envelopes): 11.2 x 22.3 cm
C5 envelopes (for A5): 16.2 x 22.9 cm
C4 envelopes (for A4): 22.9 x 32.4 cm
B4 envelopes: 25 x 35.3 cm
