This guide is provided to assist in the envelope selection process and to facilitate discussions with a printer. Not all evelopes will be available through all printing houses.
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 5.75"
6 3/4
3.625" x 6.5"
3.5" x 6.25"
8 5/8
3.625" x 8.625"
3.5" x 8.375"
7
3.75" x 6.75"
3.5" x 6.5"
Monarch (7 3/4)
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"
DL
4.313" x 8.625"
4.125" x 8.375"
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"
16
6" x 12"
5.75" x 11.75"
Booklet
This style is ideal for annual reports, brochures, sales materials, and more. The open side makes it acceptable for automatic insertion.
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 9"
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. These envelopes can not be processed through inserting equipment or run through a laser printer.
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"
14 1/2
11.5" x 14.5"
11.25" x 14"
15
10" x 15"
9.75" x 14.5"
15 1/2
12" x 15.5"
11.75" x 15"
Square
This unusual shape attracts attention to contents.
Square envelopes are nonstandard and require additional postage to mail.
TYPE
SIZE
ENCLOSURE
5"
5" x 5"
4.75" x 4.75"
5 1/2"
5.5" x 5.5"
5.25" x 5.25"
6"
6" x 6"
5.75" x 5.75"
6 1/2"
6.5" x 6.5"
6.25" x 6.25"
7"
7" x 7"
6.75" x 6.75"
7 1/2"
7.5" x 7.5"
7.25" x 7.25"
8"
8" x 8"
7.75" x 7.75"
8 1/2"
8.5" x 8.5"
8.25" x 8.25"
9"
9" x 9"
8.75" x 8.75"
9 1/2"
9.5" x 9.5"
9.25" x 9.25"
Baronial
Deep pointed flap traditionally used for formal announcements and invitations. Not recommended for machine insertion.
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"
5 1/2-Bar
4.375" x 5.75"
4.25" x 5.5"
Walton Inside
6.5" x 6.5"
6.25" x 6.25"
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 ideal 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.
Hannah Gleghorn provides design services for website development, corporate identity, and print projects such as ads, brochures, posters, CD covers, and billboards. Hannah is located in Frisco, TX—a suburb of Dallas/Fort Worth.
