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Find Mill Brand envelopes in small and bulk quantities in the size you want.

Buy envelopes by size

Find the best envelope size for your projects in our list below. Whether you need envelopes to fit your direct mail project, wedding invitations, company stationery, craft projects or any project we have the size you need. If we don't have the size you need we help with special envelope size requests to create the exact sheet size you want. Add the envelopes of your choice to your shopping cart for easy checkout.

We are pleased to offer top quality and low cost envelope printing services on any of our brand name envelopes.

View Your Envelopes by Size
Translucent Announcement Envelopes
A2 Envelopes - 4 3/8 x 5 3/4
A6 Envelopes - 4 3/4 x 6 1/2
A7 Envelopes - 5 1/4 x 7 1/4

Uncoated Announcement Envelopes
A2 Envelopes - 4 3/8 x 5 3/4
A6 Envelopes - 4 3/4 x 6 1/2
A7 Envelopes - 5 1/4 x 7 1/4
A8 Envelopes - 5 1/2 x 8 1/8
A10 Envelopes - 6 x 9 1/2

Monarch Envelopes
Baronial Envelopes
Lee Envelopes

Large 9 x 12 Envelopes

Strathmore Envelope Collection

Metallic Announcement Envelopes
A2 Envelopes - 4 3/8 x 5 3/4
A6 Envelopes - 4 3/4 x 6 1/2
A7 Envelopes - 5 1/4 x 7 1/4
Translucent Stationery Envelopes
No. 10 Envelopes - 4 1/8 x 9 1/2

Uncoated Stationery Envelopes
No. 10 Envelopes - 4 1/8 x 9 1/2
No. 10 Window Envelopes

Strathmore Collection No. 10 Envelopes

Metallic Stationery Envelopes
No. 10 Envelopes - 4 1/8 x 9 1/2

Translucent Square Envelopes

• 5 x 5 square
• 5 1/2 x 5 1/2 square
• 6 x 6 square
• 6 1/2 x 6 1/2 square
• 7 x 7 square
• 7 1/2 x 7 1/2 square
• 8 x 8 square
• 8 1/2 x 8 1/2 square
• 9 x 9 square
• 9 1/2 x 9 1/2 square

Uncoated Square Envelopes
Square Envelopes - 5 1/2 & 6 1/2

All Square Envelopes
(5" to 9 1/2")

 

 

 

Metallic Square Envelopes
Square Envelopes 6 1/2 x 6 1/2

All Square Envelopes
(5" to 9 1/2")

Translucent Mini Envelopes
Mini Envelopes - 3 5/8 x 2 1/8		 Uncoated Recycled Envelopes
Recycled Envelopes		 FSC Envelopes
FSC Envelopes

FSC = Forest Stewardship Council

Frequently Asked Questions

Paper Tools Charts and Calculators
Printing and Handling Guides
Envelope sizing and format guide
What are different paper finishes?
What is Vellum?
What is G/M2?
What is basis weight?

You had exactly what I was looking for - No other vendor came close. I called customer service twice and my questions were answered immediately. Delivery was prompt.”

Jean – Philadelphia, PA