Mailing Machine Envelope Range
The Postmaster range of Mailing Machine envelopes includes both white envelopes and manila envelopes in C6, C5 and DL envelope sizes. These special flap profile envelopes are designed to run on all known mailing machines. Board inserts in the box ensure envelopes remain flat for optimum runnability. All our mailing machine enveoples feature gummed sealing and 'side seams inside' style of manufacture.
The C6 envelope size 114 x 162mm or 4.5 x 6.375 inches (also known as the A6 Envelope) accommodates an unfolded A6 sheet, or an A5 sheet folded once, or more commonly an A4 sheet folded in quarter.
The C5 envelope size 162 x 229mm or 6.375 x 9.00 inches accommodates an unfolded sheet of A5 or more commonly an A4 sheet folded in half.
The DL envelope size 110 x 220mm or 4.25 x 8.75 inches accommodates a sheet of A5 folded once or more commonly an A4 sheet folded twice.
Visit our Recycled envelopes pages to view recycled envelopes in specific sizes.
The DL envelope and the C5 envelope, (also known as an A5 envelope) have been the most popular commercial envelope sizes for some years. With the introduction of postage fee based on envelope size, the C4 envelope (also know as an A4 envelope) has lost popularity. The C6 envelope, the DL envelope and the C5 envelope all qualify for the standard letter tariff band. View the Post Office Pricing in Proportion Tariff for further details.
For further information on envelope sizes View our Envelope Size Guide in pdf format. |