Envelope Size Chart





 

Business & Correspondence

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
6 1/4 3.5″ x 6″ 3.25″ x 5.5″
6 3/4 3.625″ x 6.5″ 3.5″ x 6″
8 5/8 3.625″ x 8.625″ 3.5″ x 8.125″
7 3.75″ x 6.75″ 3.5″ x 6.25″
Monarch (7 3/4) 3.875″ x 7.5″ 3.75″ x 7″
9 3.875″ x 8.875″ 3.75″ x 8.375″
9 (policy) 4″ x 9″ 3.75″ x 8.5″
10 4.125″ x 9.5″ 4″ x 9″
DL 4.313″ x 8.625″ 4.125″ x 8.125″
11 4.5″ x 10.375″ 4.25″ x 9.875″
12 4.75″ x 11″ 4.5″ x 10.5″
14 5″ x 11.5″ 4.75″ x 11″
16 6″ x 12″ 5.75″ x 11.5″

For best results, machine inserting is achieved with machinable envelopes.

Booklet

This style is ideal for annual reports, brochures, sales materials, and more. Booklet envelopes are often machine insertable.

TYPE SIZE ENCLOSURE
3 4.75″ x 6.5″ 4.5″ x 6″
4 1/2 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 1/2 6″ x 9″ 5.75″ x 8.5″
6 5/8 6″ x 9.5″ 5.75″ x 9″
6 3/4 6.5″ x 9.5″ 6.25″ x 9″
7 1/4 7″ x 10″ 6.75″ x 9.5″
7 1/2 7.5″ x 10.5″ 7.25″ x 10″
9 8.75″ x 11.5″ 8.5″ x 11″
9 1/2 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

Center seam makes this style more durable for mailing heavy-weight materials. All Catalog envelopes will hand insert.

TYPE SIZE ENCLOSURE
1 6″ x 9″ 5.75″ x 8.75″
1 3/4 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″
8 8.25″ x 11.25″ 8″ x 10.75″
9 3/4 8.75″ x 11.25″ 8.5″ x 10.75″
10 1/2 9″ x 12″ 8.75″ x 11.5″
12 1/2 9.5″ x 12.5″ 9.25″ x 12″
13 1/2 10″ x 13″ 9.75″ x 12.5″
15* 10″ x 15″ 9.75″ x 14.5″
15 1/2* 12″ x 15.5″ 11.75″ x 15″

* requires hand insertion.

Square

This unusual shape attracts attention to contents. Square envelopes are non-standard and may require additional postage to mail.  Contact your sales representative to determine if your envelope of choice can machine insert.  Square flaps are contemporary, but not recommended for machine insertion.

TYPE SIZE ENCLOSURE
5″ 5″ x 5″ 4.75″ x 4.75″
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 8.5″ 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

Deep pointed flap traditionally used for formal announcements and invitations. All Baronial envelopes will hand insert.

TYPE SIZE ENCLOSURE
Professional* 2.125″ x 3.625″ 2″ x 3.5″
#16 (Mrs.)* 2.375″ x 3.375″ 2.25″ x 3.125″
#17 (Mr. & Mrs.)* 2.6875″ x 3.6875″ 2.5625″ x 3.5625″
Gladstone* 3.563″ x 5.562″ 3.375″ x 5.375″
4-Bar 3.625″ x 5.125″ 3.475″ x 4.875″
5½-Bar 4.375″ x 5.75″ 4.25″ x 5.5″
6-Bar/Walton Outside 4.75″ x 6.5″ 4.625″ x 6.25″
Lee 5.25″ x 7.25″ 5.125″ x 7″
Linwood/Monona Inside 5.25″ x 7.5″ 5″ x 7.25″
Monona Outside 5.5″ x 7.75″ 5.25″ x 7.5″

* this size is too small to mail.

Announcement

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
A-2 4.375″ x 5.75″ 4.25″ x 5.5″
A-6 4.75″ x 6.5″ 4.625″ x 6″
A-7* 5.25″ x 7.25″ 5″ x 6.75″
A-8* 5.5″ x 8.125″ 5.25″ x 7.625″
A-9 5.75″ x 8.875″ 5.5″ x 8.375″
A-10* 6″ x 9.5″ 5.75″ x 9″

* requires machine insertable (shorter flap) envelopes.  If they are not available, hand insertion will be required.