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About Square Envelopes

Something modern and different, LCI Paper supplies square invitation envelopes in common and not-so-common sizes, dozens of colors and finishes, and in multiple flap styles. Square envelopes are popular for unique wedding and Bar/Bat Mitzvah invitations, corporate mailings, fun greeting cards and more.

Add that extra special touch and enhance your envelopes with our NEW Euro Flap 6.5in Square Envelope Liners.

 

Key Features

  • Unique square shape
  • Available in multiple sizes
  • Euro Flap and Straight Flap options
  • Wide range of colors and finishes
  • Premium paper options available
  • Compatible with printing and customization

Common Uses for Square Envelopes

  • Square Wedding invitations
  • Greeting cards
  • Creative marketing mailers
  • Event announcements
  • Specialty stationery

 

Printing Options

Order square envelopes blank for at-home printing* or choose professional printing services from LCI Paper, including custom addressing and design printing. Explore our free downloadable printing templates.

**Home Printing Disclaimer: Due to the weight, dimensions, unique finish, and layered nature of envelopes, not all printers can effectively print envelopes. We highly encourage you to order samples to test print prior to purchase.

 

Pair Square Envelopes with Matching Products

Square envelopes are designed to pair with square cards and invitations, creating a cohesive and visually distinctive presentation.

 

Frequently Asked Questions About Square Envelopes

What are square envelopes used for?

Square envelopes are commonly used for unique invitations, greeting cards, and creative mailings where presentation is important.

 

What sizes do square envelopes come in?

We offer square envelopes in multiple sizes, including 5 1/2 x 5 1/2, 5 3/4 x 5 3/4, 6 x 6, 6 1/2 x 6 1/2, and 7 1/2 x 7 1/2. Our square envelopes can fit 5", 6", and 7" cards and invitations.

 

Do square envelopes require extra postage?

Due to the non-machinable size and shape of square envelopes, the USPS charges a surcharge for square envelopes in addition to the current stamp price. Also note that anything over one ounce requires additional postage as well. To determine accurate postage for your square mailing envelopes, we recommend bringing one finished ensemble to the post office.

 

Can I print on square envelopes?

Yes, square envelopes can be printed at home or professionally, depending on your needs.

**Home Printing Disclaimer: Due to the weight, dimensions, unique finish, and layered nature of envelopes, not all printers can effectively print envelopes. We highly encourage you to order samples to test print prior to purchase.

 

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