Resources

Envelope Sizes

Below is a list of common envelope sizes for every occasion. Choose from Business & Correspondence Envelopes, Booklet Envelopes, Catalog Envelopes, Square Envelopes, Baronial Envelopes, and Announcement Envelopes.

Business & Correspondence Envelopes

Widely used for business and personal correspondence. Commercial and Side Seam flap styles are ideal for machine insertion. Wallet flaps provide a large area ideal for imprinting. Square flaps are contemporary, but not recommended for machine insertion.

Type Size Enclosure Styles
6 ¼ 3.5″ x 6″ 3.25″ x 5.75″ Business envelope with a commercial flap style.
Business envelope with side seams.Wallet flap envelope.Square flap envelope.Policy style business envelope.
6 ¾ 3.625″ x 6.5″ 3.5″ x 6.25″
8 ⅝” 3.625″ x 8.625″ 3.5″ x 8.375″
7 3.75″ x 6.75″ 3.5″ x 6.5″
Monarch (7 ¾) 3.875″ x 7.5″ 3.75″ x 7.25″
9 3.875″ x 8.875″ 3.75″ x 8.675″
9 (policy) 4″ x 9″ 3.75″ x 8.5″
10 4.125″ x 9.5″ 4″ x 9.25″
11 4.5″ x 10.375″ 4.25″ x 10.125″
12 4.75″ x 11″ 4.5″ x 10.75″
14 5″ x 11.5″ 4.75″ x 11.25″

Booklet Envelopes

This style is ideal for annual reports, brochures, sales materials, and more. The open side makes it acceptable for automatic insertion.

Type Size Enclosure Styles
3 4.75″ x 6.5″ 4.5″ x 6″ Booklet style envelope.
4 ½ 5.5″ x 7.5″ 5.25″ x 7″
5 5.5″ x 8.125″ 5.25″ x 7.625″
6 5.75″ x 8.875″ 5.5″ x 8.375″
6 ¾ 6.5″ x 9.5″ 6.25″ x 9″
7 ¼ 7″ x 10″ 6.75″ x 9.5″
7 ½ 7.5″ x 10.5″ 7.25″ x 10″
9 8.75″ x 11.5″ 8.5″ x 11″
9 ½ 9″ x 12″ 8.75″ x 11.5″
10 9.5″ x 12.625″ 9.25″ x 12.125″
13 10″ x 13″ 9.75″ x 12.5″

Catalog Envelopes

Center seam makes this style more durable for mailing heavy-weight materials. These envelopes can not be processed through inserting equipment or run through a laser printer.

Type Size Enclosure Styles
1 6″ x 9″ 5.75″ x 8.75″ Catalog style envelope.
1 ¾ 6.5″ x 9.5″ 6.25″ x 9.25″
3 7″ x 10″ 6.75″ x 9.5″
6 7.5″ x 10.5″ 7.25″ x 10″
9 ¾ 8.75″ x 11.25″ 8.5″ x 10.75″
10 ½ 9″ x 12″ 8.75″ x 11.5″
12 ½ 9.5″ x 12.5″ 9.25″ x 12″
13 ½ 10″ x 13″ 9.75″ x 12.5″
14 ½ 11.5″ x 14.5″ 11.25″ x 14″
15 10″ x 15″ 9.75″ x 14.5″
15 ½ 12″ x 15.5″ 11.75″ x 15″

Square Envelopes

This unusual shape attracts attention to contents. Square envelopes are nonstandard and require additional postage to mail. White Wove is available for all sizes; please request a quote for other colors.

Type Size Enclosure Styles
5″ 5″ x 5″ 4.75″ x 4.75″ Square envelope.
5 ½” 5.5″ x 5.5″ 5.25″ x 5.25″
6″ 6″ x 6″ 5.75″ x 5.75″
6 ½” 6.5″ x 6.5″ 6.25″ x 6.25″
7″ 7″ x 7″ 6.75″ x 6.75″
7 ½” 7.5″ x 7.5″ 7.25″ x 7.25″
8″ 8″ x 8″ 7.75″ x 7.75″
8 ½” 8.5″ x 9.5″ 8.25″ x 8.25″
9″ 9″ x 9″ 8.75″ x 8.75″
9 ½” 9.5″ x 9.5″ 9.25″ x 9.25″
10″ 10″ x 10″ 9.75″ x 9.75″
13 ½” 13.5″ x 13.5″ 13.25″ x 13.25″

Baronial Envelopes

Deep pointed flap traditionally used for formal announcements and invitations. Not recommended for machine insertion.

Type Size Enclosure Styles
5″ 5″ x 5″ 4.75″ x 4.75″ Baronial style envelope.
5 ½” 5.5″ x 5.5″ 5.25″ x 5.25″
6″ 6″ x 6″ 5.75″ x 5.75″
6 ½” 6.5″ x 6.5″ 6.25″ x 6.25″
7″ 7″ x 7″ 6.75″ x 6.75″
7 ½” 7.5″ x 7.5″ 7.25″ x 7.25″
8″ 8″ x 8″ 7.75″ x 7.75″
8 ½” 8.5″ x 9.5″ 8.25″ x 8.25″
9″ 9″ x 9″ 8.75″ x 8.75″
9 ½” 9.5″ x 9.5″ 9.25″ x 9.25″
10″ 10″ x 10″ 9.75″ x 9.75″
13 ½” 13.5″ x 13.5″ 13.25″ x 13.25″

Announcement Envelopes

Also called A-style, this contemporary design is idea for photographs, greeting cards, small booklets, and promotional pieces. Do not confuse the A-4 size with metric A4 paper, which fits into a DL size Commercial envelope.

Type Size Enclosure Styles
A-2 4.375″ x 5.75″ 4.25″ x 5.5″ Announcement style envelope.
A-6 4.75″ x 6.5″ 4.625″ x 6.25″
A-7 5.25″ x 7.25″ 5″ x 7″
A-8 5.5″ x 8.125″ 5.25″ x 7.75″
A-9 5.75″ x 8.875″ 5.5″ x 8.625″
A-10 6″ x 9.5″ 5.75″ x 9.25″