Envelope design and manufacturing standards guides
Introduction Coin envelopes are the small-envelope family, numbered #1 through #7, designed not for letters but for small items — coins, seeds, jewelry, electronic…
Introduction A catalog envelope is a large, open-end envelope designed to carry flat, unfolded content — catalogs, annual reports, magazines, and marketing booklets. Unlike…
Introduction A banker envelope is a wallet-flap envelope — the flap is on the long side and deep, giving it a roomy, secure closure.…
Introduction The A-series is the invitation and stationery envelope family, running from A1 through A10 and keyed to card and photo sizes rather than…
Introduction Envelope sizes aren't random — they cluster into a handful of families, each built around a specific kind of insert. Knowing the families…
Introduction The manila envelope is the brown, lightweight document carrier that offices and institutions have used for a century — the envelope for filing,…
Introduction A reply envelope is the return envelope you enclose with a bill, donation appeal, or survey, so the recipient can respond without addressing…
Introduction The standard business envelope size is #10, measuring 4⅛ inches × 9½ inches. It holds a letter folded into thirds and is the…
Introduction Square envelopes are the invitation world's signature format — the 5×5 and 6×6 squares that carry wedding invitations, announcements, and greeting cards with…
Introduction International envelope sizes follow the ISO 269 standard, and the four you meet most are DL, C4, C5, and C6. If your business…