Business & Correspondence
Widely used for business and personal correspondence. Commercial and Side Seam flap styles are ideal for machine insertion.
TYPE SIZE ENCLOSURE
6 1/4 3 1/2" x 6" 3 1/4" x 5 3/4"
6 3/4 3 5/8" x 6 1/2" 3 1/2" x 6 1/4"
7 3/4 (Monarch) 3 7/8" x 7 1/2" 3 3/4" x 7 1/4"
8 5/8 (Check) 3 5/8" x 8 5/8" 3 1/2" x 8.375"
9 3 7/8" x 8 7/8" 3 3/4" x 8.675"
10 4 1/8" x 9 1/2" 4" x 9 1/4"
11 4 1/2" x 10 3/8" 4 1/4" x 10.125"
12 4 3/4/" x 11" 4 1/2" x 10 3/4"
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
6 1/2 6" x 9" 5 3/4" x 9"
6 3/4 6 1/2" x 9 1/2" 6 1/4" x 9"
7 1/4 7" x 10" 6 3/4" x 9 1/2"
7 1/2 7 1/2" x 10 1/2" 7 1/4" x 10"
9 1/2 9" x 12"

8 3/4" x 11 1/2"

Catalog
Center seam makes this style more durable for mailing heavy-weight materials. These envelopes can not be processed through inserting equiptment or run through a laser printer.
SIZE ENCLOSURE
6" x 9" 5 3/4" x 8 3/4"
6 1/2" x 9 1/2" 6 1/4" x 9 1/4"
7" x 10" 6 3/4" x 9 1/2"
7 1/2" x 10 1/2" 7 1/4" x 10"
9" x 12" 8 3/4" x 11 1/2"
9 1/2" x 12 1/2" 9 1/4" x 12"
10" x 13" 9 3/4" x 12 1/2"
10" x 15" 9 3/4" x 14 1/2"

Baronial
Deep pointed flap traditionally used for formal announcements and invitations. Not recommended for machine insertion.
TYPE SIZE ENCLOSURE
4-Bar 3 5/8" x 5 1/8" 3 1/2" x 4 7/8"
5-Bar 4 1/8" x 5 1/2" 4" x 5 1/4"
5½-Bar 4 3/8" x 5 3/4" 4 1/4" x 5 1/2"
6-Bar 4 3/4" x 6 1/2" 4 5/8" x 6 1/4"
Lee 5 1/4" x 7 1/4" 5 1/8" x 7"
 

Announcement
Also called A-style, this contemporary design is idea for photographs, greeting cards, small booklets, and promotional pieces.
TYPE SIZE ENCLOSURE
A-2 4 3/8 " x 5 3/4" 4 1/4" x 5 1/2"
A-6 4 3/4" x 6 1/2" 4 5/8" x 6 1/4"
A-7 5 1/4" x 7 1/4" 5 1/8" x 7"
A-8 5 1/2" x 8 1/8" 5 3/4" x 7 7/8"
A-9 5 3/4" x 8 3/4" 5 5/8" x 8 5/8"
A-10 6" x 9 1/2" 5 7/8" x 9 1/4"
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