Envelope Standard Sizes At LCI Paper – Envelope Size Chart

envelope close flap size chart
Envelopes
blank card for envelope size chart
Suggested Cards
4 Bar 3 5/8 x 5 1/8 A4 3 1/2 x 4 7/8
4 Bar European Flap 3 5/8 x 5 1/8 A4 3 1/2 x 4 7/8
A2 4 3/8 x 5 3/4 A2 4 1/4 x 5 1/2
A6 4 3/4 x 6 1/2   4 1/2 x 6 1/4
A7 5 1/4 x 7 1/4 A7 5 1/8 x 7
A7 European Flap 5 1/4 x 7 1/4 A7 5 1/8 x 7
5 1/4 x 7 1/4 Baronial 5 1/4 x 7 1/4 A7 5 1/8 x 7
5 7/16 x 7 7/8 Baronial 5 7/16 x 7 7/8 Jumbo 5 1/8 x 7 1/4
A8 5 1/2 x 8 1/8 A8 5 3/8 x 7 3/4
6 x 8 1/4 Baronial 6 x 8 1/4 A8 5 3/8 x 7 3/4
A9 5 3/4 x 8 3/4 A9 5 1/2 x 8 1/2
A9 European Flap 5 3/4 x 8 3/4 A9 5 1/2 x 8 1/2
A10 6 x 9 1/2   5 7/8 x 9 1/4
5 1/2 Square 5 1/2 x 5 1/2 5 1/4 Square 5 1/4 x 5 1/4
6 Square Baronial 6 x 6   5 3/4 x 5 3/4
6 1/2 Square 6 1/2 x 6 1/2 6 1/4 Square 6 1/4 x 6 1/4
6 3/4 Square Baronial 6 3/4 x 6 3/4   6 1/2 x 6 1/2
7 1/2 Square 7 1/2 x 7 1/2   7 1/4 x 7 1/4
7 1/2 Square Baronial 7 1/2 x 7 1/2   7 1/4 x 7 1/4
Policy 4 1/4 x 9 1/2 Slim 4 x 9 1/4
#10 Square Flap 4 1/4 x 9 1/2 Slim 4 x 9 1/4
#10 European Flap 4 1/4 x 9 1/2 Slim 4 x 9 1/4
Slim Double Inner: 3 7/8 x 9
Outer: 4 1/8 x 9 1/2
Slim 3 1/2 x 8 3/4
Embassy Double Inner: 5 1/8 x 6 7/8
Outer: 5 1/4 x 7 1/4
  5 x 6 5/8
Jumbo Double Inner: 5 5/16 x 7 5/8
Outer: 5 7/16 x 7 7/8
A7 5 1/8 x 7
Tiffany Double Inner: 5 3/4 x 8
Outer: 6 x 8 1/4
A8 5 3/8 x 7 3/4
Marquis Double Inner: 5 3/4 x 5 3/4
Outer: 6 x 6
  5 1/2 x 5 1/2
Imperial Double Inner: 6 1/2 x 6 1/2
Outer: 6 3/4 x 6 3/4
6 1/4 Square 6 1/4 x 6 1/4
Royal Double Inner: 7 1/4 x 7 1/4
Outer: 7 1/2 x 7 1/2
7 Square 7 x 7

Match Your Card To Standard Size Envelopes At LCI Paper

With 22 envelope sizes in stock, its not always easy to find the correct card size for your envelopes. Use our Quick Size Chart to determine the best card match.

Left side of chart shows our envelope sizes. Right side shows card suggestions.

More Tips:

  • Card must be smaller than envelope
  • For best fit, we recommend a card roughly 1/4 inch smaller than the envelope.
  • If card is too small, it will be “swimming” in the envelope.
  • If we don’t carry a particular card size, we can custom cut cards to meet your requirement.

Shop All Envelope Sizes at the LCI Paper online store

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12 Comments

  1. alicia says:

    do you have “DL” sized envelopes, in white, in over 100gsm?
    Do you have the above lined with black (not foil)?

    thank you

  2. JB says:

    Hi Alicia,

    While we do not carry any DL sized envelopes, we do have an inner/outer Wedding Envelope set with the following measurements:

    Inner Envelope 3 7/8 x 9, Outer Envelope 4 1/8 x 9 1/2

    This is a white envelope set with a lustrous, coated, pearlescent Black lining – not foil. Here is a link to the item:
    Double Wedding Envelope Set-Slim White Black Lined

    We also carry the inner envelope by itself:

    Inner Wedding Envelope-Slim White Black Lined

    But keep in mind this is an inner envelope and it has no gummed seal. If you want to mail it without an outer envelope, you would have the adhere the flap on your own.

    There envelopes are made with 70 lb text paper (105.35 gsm).

  3. JP says:

    I will have wedding invites made which are 5 x 7″. I would like to order double (lined) envelope sets. Which do you recommend?

    • JB says:

      Hi JP,

      The best Double Envelope to fit your card is our Jumbo size where the inner measures 5 5/16 x 7 5/8 and the outer measures 5 7/16 x 7 7/8. To find these, just go to our Double Wedding Envelopes page. Under Select Size, choose Inner Envelope 5 5/16 x 7 5/8 Outer Envelope 5 7/16 x 7 7/8.

  4. Shawna says:

    Hi there,
    I would like to make an invitation that fits into an A10 envelope, but I’m confused – do you have in stock the card that would fit inside, or does that have to be specially cut?

    Thanks

    • JB says:

      Hi Shawna,

      A10 invitation envelope and card sizes are less common than A9. Although we carry a limited selection of A10 envelopes, we do not carry any A10 cards (5 7/8 x 9 1/4).

      Custom size cutting is not an advertised service available through our web site, but we can arrange for cards to be cut to a certain size specified by you. Please see our video, Do you offer custom paper and card sizes?, for further explanation on custom cutting.

  5. Shonda Ingram says:

    Hello,
    My wedding invitation is printed on A5 paper. I was told that I need a C5 enevelop for this. Plus I also have a response card that needs an enevelope. I really like your double wedding envelopes. Do you the size I need available?
    Thanks

    • JB says:

      Hi Shonda,

      The A5 size corresponds to a different standard than what is common in the U.S. I believe you are referring to an invitation card size of 210 x 148 millimeters (8.3 x 5.8 inches). Unfortunately we do not carry any Double Wedding Envelopes sized to accommodate this card, nor do we carry any C5 envelopes which measure 162 x 229 millimeters (6 3/8 x 9 inches).

      To accommodate your card, we do offer a 6 x 9 1/2 envelope (152.4 x 241.3 millimeters). But you may find it to be wider than ideal. Also, keep in mind that this is a single envelope, not a double envelope.

  6. Lynne Peters says:

    What is the smallest size envelope that the P.O. will accept/send? I want to get RSVP envelopes for wedding invitations but not sure what size I need to make the RSVP card. thank you

  7. Tasha says:

    What is the best envelope size to use for the trifold card stock paper?

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