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A7 Envelopes (5 1/4 x 7 1/4) – The Most Popular Invitation Envelope Size
A standard wedding invitation and card envelope size, A7 envelopes are the perfect fit for A7, 5×7 cards. Shop them in nearly 100 colors, blank or addressed, each with matching cards, papers, and drop-in envelope liner paper available.
More Standard Envelope Sizes
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A7.5 Envelopes - 5 1/2 x 7 1/2Perfect for bulky 5x7 invitations, also used as outer A7 envelopes70 products
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A8 Envelopes - 5 1/2 x 8 1/8A common straight flap option for invitations and greeting cards18 products
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#10 Envelopes - 4 1/8 x 9 1/2Professional envelope for letters & business correspondence80 products
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Jumbo Envelopes - 5 7/16 x 7 7/8Uniquely sized "jumbo" envelopes for invites a little over 5x7 inches2 products
A9 Envelopes – 5 3/4 x 8 3/4
A convenient envelope size, A9 envelopes are the perfect fit for half-sheet, or bi-fold (5 1/2 x 8 1/2 inch) cards and mailings. Shop them in straight and euro flaps for your social and business envelope needs.
How to Find the Right Envelope Size for Your Invitation
LCI Paper supplies blank and printed envelopes in dozens of sizes, and finding the right size envelope for your invites or cards may be tricky. Here we explain how to choose the right size envelope.
Choose Your Envelopes Before Your Cards!
Where cards can be cut into any size, envelopes are made only in standard industry sizes. Before designing or purchasing your invitations, be sure a suitable envelope will be available.
Pair Cards with Envelopes that are 1/8 – 1/4 Inch Larger than Your Cards
The guideline to the perfect fit is an envelope that is 1/8 to 1/4 inch larger than your largest card. This will allow plenty of room for your card(s) without excessive wiggle room that may make your presentation look sloppy.
An Easy Way to Find the Right Envelope Size: Match the A-Sizes
To make it easy (and to avoid measuring), check out the A-sizes!
Standard “A” Sizes (A1, A2, A6, A7, etc.) are designated with an A followed by a number. A-sizes correspond to specific card and envelope sizes. For simplicity, a card and envelope with the same A-size are designed to be paired together.
For example, A7 size cards and A7 size envelopes are the perfect fit:
A7 card size: (5 1/8 x 7)
A7 envelope size: (5 1/4 x 7 1/4)