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 HAVE DIE 6 1/4 3.5" x 6" 3.25" x 5.75" Yes 6 3/4 3.625" x 6.5" 3.5" x 6.25" Yes 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" Yes 9 3.875" x 8.875" 3.75" x 8.675" Yes 9 (policy) 4" x 9" 3.75" x 8.5"   10 4.125" x 9.5" 4" x 9.25" Yes DL 4.313" x 8.625" 4.125" x 8.375" Yes 11 4.5" x 10.375" 4.25" x 10.125" Yes 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 HAVE DIE 3 4.75" x 6.5" 4.5" x 6" Yes 4 1/2 5.5" x 7.5" 5.25" x 7" Yes 5 5.5" x 8.125" 5.25" x 7.625" Yes 6 5.75" x 8.875" 5.5" x 8.375"   6 1/2 6" x 9" 5.75" x 9" Yes 6 5/8 6" x 9.5" 5.75" x 9" Yes 6 3/4 6.5" x 9.5" 6.25" x 9" Yes 7 1/4 7" x 10" 6.75" x 9.5" Yes 7 1/2 7.5" x 10.5" 7.25" x 10" Yes 9 8.75" x 11.5" 8.5" x 11" Yes 9 1/2 9" x 12" 8.75" x 11.5" Yes 10 9.5" x 12.625" 9.25" x 12.125" Yes 13 10" x 13" 9.75" x 12.5" Yes

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. TYPE SIZE ENCLOSURE HAVE DIE 1 6" x 9" 5.75" x 8.75" Yes 1 3/4 6.5" x 9.5" 6.25" x 9.25" Yes 3 7" x 10" 6.75" x 9.5" Yes 6 7.5" x 10.5" 7.25" x 10" Yes 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" Yes 12 1/2 9.5" x 12.5" 9.25" x 12" Yes 13 1/2 10" x 13" 9.75" x 12.5" Yes 15 10" x 15" 9.75" x 14.5"   15 1/2 12" x 15.5" 11.75" x 15" Yes

Square This unusual shape attracts attention to contents. Square envelopes are nonstandard and require additional postage to mail. TYPE SIZE ENCLOSURE HAVE DIE 5" 5" x 5" 4.75" x 4.75" Yes 5 ½" 5.5" x 5.5" 5.25" x 5.25" Yes 6" 6" x 6" 5.75" x 5.75" Yes 6 ½" 6.5" x 6.5" 6.25" x 6.25" Yes 7" 7" x 7" 6.75" x 6.75" Yes 7 ½" 7.5" x 7.5" 7.25" x 7.25" Yes 8" 8" x 8" 7.75" x 7.75" Yes 8 ½" 8.5" x 8.5" 8.25" x 8.25" Yes 9" 9" x 9" 8.75" x 8.75" Yes 9 ½" 9.5" x 9.5" 9.25" x 9.25" Yes 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. Not recommended for machine insertion. TYPE SIZE ENCLOSURE HAVE DIE Professional* 2.125" x 3.625" 2" x 3.5" Yes #16 (Mrs.)* 2.375" x 3.375" 2.25" x 3.125" Yes #17 (Mr. & Mrs.)* 2.6875" x 3.6875" 2.5625" x 3.5625" Yes Gladstone* 3.563" x 5.562" 3.375" x 5.375" Yes 4-Bar 3.625" x 5.125" 3.475" x 4.875" Yes 5½-Bar 4.375" x 5.75" 4.25" x 5.5" Yes 6-Bar/Walton Outside 4.75" x 6.5" 4.625" x 6.25" Yes Lee 5.25" x 7.25" 5.125" x 7" Yes Linwood/Monona Inside 5.25"" x 7.5"" 5" x 7.25" Yes Monona Outside 5.5" x 7.75" 5.25" x 7.5" Yes * 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 HAVE DIE A-2 4.375" x 5.75" 4.25" x 5.5" Yes A-6 4.75" x 6.5" 4.625" x 6.25" Yes A-7 5.25" x 7.25" 5" x 7" Yes A-8 5.5" x 8.125" 5.25" x 7.75" Yes A-9 5.75" x 8.875" 5.5" x 8.625" Yes A-10 6" x 9.5" 5.75" x 9.25" Yes