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What is the biggest size my invitation can be to fit into an A7 envelope?
What is the biggest size my invitation can be to fit into an A7 envelope?
Corey Thompson avatar
Written by Corey Thompson
Updated over a week ago

Invitation Envelopes are referred to as the "A" sizes of envelopes.. A-Envelope Sizes (inches):. A1 - 3 5/8" x 5 1/8", or 3.625" x 5.125". A2 - 4 3/8" x 5 3/4", or 4.375" x 5.75". A6 - 4 3/4" x 6 1/2", or 4.75" x 6.5". A7 - 5 1/4" x 7 1/4", or 5.25" x 7.25". A8 - 5 1/2" x 8 1/8", or 5.5" x 8.125". A9 - 5 3/4" x 8 3/4", or 5.75" x 8.75". A10 - 6" x 9 1/2", or 6" x 9.5". You can purchase Invitation Envelopes at 4OVER4.COM Maximum Size your insert, postcard or invitation should be:. A1 - 3 1/2" x 4 7/8", or 3.5" x 4.875". A2 - 4 1/4" x 5 1/2", or 4.25" x 5.5". A6 - 4 1/2" x 6 1/4", or 4.5" x 6.25". A7 - 5 1/8" x 7", or 5.125" x 7". A8 - 5 3/8" x 7 7/8", or 5.375" x 7.875". A9 - 5 1/2" x 8 1/2" , or 5.5" x 8.5". A10 - 5 3/4" x 9 1/4", or 5.75" x 9.25".

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