Custom Envelope Sizes & Styles

At Priority Envelope, we offer a wide range of custom envelope sizes and styles to suit any project. Whether you need standard sizes like #10 commercial envelopes or unique dimensions for specialized mailings, we have the options to meet your needs. Our selection includes various styles, from booklet and catalog envelopes to specialty designs with custom features like windows, closures, and unique finishes. With endless customization possibilities, we ensure that your envelopes not only fit your contents perfectly but also align with your brand’s image and functionality requirements.

Commercial

envelope graphic - legal envelopes

Diagonal Seam

envelope graphic - embossing cards

Double Side Seam

Style Envelope Size
#6 1/4 3 1/2” x 6”
#6 3/4 3 5/8” x 6 1/2”
#7 3 3/4” x 6 3/4”
#7 3/4 3 7/8” x 7 1/2”
#8 5/8 3 5/8” x 8 5/8”
#9 3 7/8″ x 8 7/8″
#10 4 1/8″ x 9 1/2″
#11 4 1/2″ x 10 3/8″
#12 4 3/4″ x 11″
#14 5″ x 11 1/2″

Baronial

Style Envelope Size
4 Baronial 3 5/8” x 5 1/8”
5 Baronial 4 1/8” x 5 1/2”
Astor 3 5/8” x 5 5/8”
5 1/2 Baronial 4 3/8” x 5 3/4”
Belmont 4 1/4″ x 6 1/4″
6 Belmont 4 3/4″ x 6 1/2″
Lee 5 1/4″ x 7 1/4″
envelope graphic - greeting card envelopes bulk

Open End Catalog

paper package graphic - stock envelope
Style Envelope Size
#7 Glove 4″ x 6 3/8″
#1 Scarf 4 5/8″ x 6 3/4″
#3 Scarf 5″ x 7 1/2″
#6 Scarf 5 1/2″ x 8 1/4″
#1 Catalog 6″ x 9″
#1 3/4 Catalog 6 1/2″ x 9 1/2″
#3 Catalog 7″ x 10″
#6 Catalog 7 1/2″ x 10 1/2″
#9 3/4 Catalog 8 3/4″ x 11 1/4″
#10 3/4 Catalog 9″ x 12″
#12 1/2 Catalog 9 1/2” x 12 1/2”
#13 1/2 Catalog 10” x 13”
#14 1/2 Catalog 11 1/2” x 14 1/2”
#15 Catalog 10” x 15”
#15 1/2 Catalog 12” x 15 1/2”
#10 Policy 4 1/8” x 9 1/2”
#11 Policy 4 1/2” x 10 3/8”
#12 Policy 4 3/4” x 11”
#14 Policy 5” x 11 1/2”

Open Side Booklet

Style Envelope Size
#3 4 3/4” x 6 1/2”
#5 5 1/2” x 8 1/8”
#6 5 3/4” x 8 7/8”
#6 1/2 6” x 9”
#6 3/4 6 1/2” x 9 1/2”
#7 1/4 7” x 10″
#7 1/2 7 1/2” x 10 1/2”
#9 8 3/4” x 11 1/2”
#9 1/2 9” x 12”
#10 9 1/2” x 12 5/8”
#13 10” x 13”
envelope graphic - envelope size

Announcements

envelope graphic - mailer envelopes
Style Envelope Size Sheet
(Flat Sizes)
Narrowfold Card
(Flat Sizes)
Broadfold Card
(Flat Sizes)
A2 (Square flap) 4 3/8” x 5 3/4” 8 1/2” x 11” 4 1/4” x 11” 5 1/2” x 8 1/2”
A6 (Square flap) 4 3/4” x 6 1/2” 9” x 12 1/2” 4 1/2” x 12 1/2” 6 1/4” x 9”
A7 (Square flap) 5 1/4” x 7 1/4” 10” x 14” 5” x 14” 7” x 10”
A8 (Square flap) 5 1/2” x 8 1/8” 10 1/2” x 15 1/2” 5 1/4” x 15 1/2” 7 3/4” x 10 1/2”
A10 (Square flap) 6” x 9 1/2” 11 1/2” x 18 1/2” 5 3/4” x 18 1/2” 9 1/4” x 11 1/2”
Slimline (Square flap) 3 7/8” x 8 7/8” 7 1/2” x 17 1/4” 3 3/4” x 17 1/4” 7 1/2” x 8 5/8”

Get Started Today!

Transform your mailing and packaging solutions today! Discover how Priority Envelope’s advanced services and fast turnaround times can meet all your envelope and custom folding carton needs. Contact us now to get started!