Choose the correct envelope for your project at Bosque Print

Envelope Size Chart & Description

(Provided for information and reference purposes, we do not stock nor can we get all dimensions listed below)

Business & Correspondence

Office / Commercial envelopes, widely used for a variety of 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.

In the United States the popular business envelope is the standard #10 Envelope. With options such as Square Flap, Policy and commercial flap - it has become popular for both commercial and social designs.

  • Commercial Flap
  • Square Flap
  • Wallet Flap
  • Side Seam
  • Policy
Type Size Suggested Enclosure (varies according to insert thickness)
No. 6 1/4 Commercial
No. 6 1/4 Remittance
inches: 3.5 x 6 (mm: 88.9 x 152.4) inches: 3.25 x 5.75 (mm: 82.55 x 146.05)
No. 6 3/4 inches: 3.625 x 6.5 (mm: 92.075 x 165.1) inches: 3.5 x 6.25 (mm: 88.9 x 158.75)
No. 8 5/8 inches: 3.625 x 8.625 (mm: 92.075 x 219.075) inches: 3.5 x 8.375 (mm: 88.9 x 212.725)
No. 7 inches: 3.75 x 6.75 (mm: 95.25 x 171.45) inches: 3.5 x 6.5 (mm: 88.9 x 165.1)
Monarch (#7-3/4) inches: 3.875 x 7.5 (mm: 98.425 x 190.5) inches: 3.75 x 7.25 (mm: 95.25 x 184.15)
No. 9 inches: 3.875 x 8.875 (mm: 98.425 x 225.425) inches: 3.75 x 8.625 (mm: 95.25 x 219.075)
No. 9 (policy) inches: 4 x 9 (mm: 101.6 x 228.6) inches: 3.75 x 8.5 (mm: 95.25 x 215.9)
No. 10 inches: 4.125 x 9.5 (mm: 104.775 x 241.3) inches: 4 x 9.25 (mm: 101.6 x 234.95)
DL (International) inches: 4.313 x 8.625 (mm: 109.5502 x 219.075) inches: 4.125 x 8.375 (mm: 104.775 x 212.725)
No. 11 inches: 4.5 x 10.375 (mm: 114.3 x 262.525) inches: 4.25 x 10.125 (mm: 107.95 x 257.175)
No. 12 inches: 4.75 x 11 (mm: 120.65 x 279.4) inches: 4.5 x 10.75 (mm: 114.3 x 273.05)
No. 14 inches: 5 x 11.5 (mm: 127 x 292.1) inches: 4.75 x 11.25 (mm: 120.65 x 285.75)
No. 16 inches: 6 x 12 (mm: 152.4 x 304.8) inches: 5.75 x 11.75 (mm: 146.05 x 298.45)

Booklet Envelopes

Constructed with side seam, is ideal for annual reports, brochures, sales materials, and a variety of printed material. The open side makes it acceptable for automatic insertion and ideal for volume mailing.

  • Booklet EnvelopesBooklet
Type Size Suggested Enclosure (varies according to insert thickness)
No. 3 Booklet inches: 4.75 x 6.5 (mm: 120.65 x 165.1) inches: 4.5 x 6 (mm: 114.3 x 152.4)
No. 4 1/2 Booklet inches: 5.5 x 7.5 (mm: 139.7 x 190.5) inches: 5.25 x 7 (mm: 133.35 x 177.8)
No. 5 Booklet inches: 5.5 x 8.125 (mm: 139.7 x 206.375) inches: 5.25 x 7.625 (mm: 133.35 x 193.675)
No. 6 Booklet inches: 5.75 x 8.875 (mm: 146.05 x 225.425) inches: 5.5 x 8.375 (mm: 139.7 x 212.725)
No. 6 1/2 Booklet inches: 6 x 9 (mm: 152.4 x 228.6) inches: 5.75 x 8.5 (mm: 146.05 x 215.9)
No. 6 5/8 Booklet inches: 6 x 9.5 (mm: 152.4 x 241.3) inches: 5.75 x 9 (mm: 146.05 x 228.6)
No. 6 3/4 Booklet inches: 6.5 x 9.5 (mm: 165.1 x 241.3) inches: 6.25 x 9 (mm: 158.75 x 228.6)
No. 7 1/4 Booklet inches: 7 x 10 (mm: 177.8 x 254) inches: 6.75 x 9.5 (mm: 171.45 x 241.3)
No. 7 1/2 Booklet inches: 7.5 x 10.5 (mm: 190.5 x 266.7) inches: 7.25 x 10 (mm: 184.15 x 254)
No. 9 Booklet inches: 8.75 x 11.5 (mm: 222.25 x 292.1) inches: 8.5 x 11 (mm: 215.9 x 279.4)
No. 9 1/2 Booklet inches: 9 x 12 (mm: 228.6 x 304.8) inches: 8.75 x 11.5 (mm: 222.25 292.1)
No. 10 Booklet inches: 9.5 x 12.625 (mm: 241.3 x 320.675) inches: 9.25 x 12.125 (mm: 234.95 x 307.975)
No. 13 Booklet inches: 10 x 13 (mm: 254 x 330.2) inches: 9.75 x 12.5 (mm: 247.65 x 317.5)

Catalog Envelopes

Catalog envelopes, constructed with center seam which makes them more durable for mailing heavy-weight materials. Made for catalogs, large booklets and other heavy enclosures. These envelopes can not be processed through inserting equipment or run through a laser printer.

  • Catalog
Type Size Suggested Enclosure (varies according to insert thickness)
No. 1 Catalog inches: 6 x 9 (mm: 152.4 x 228.6) inches: 5.75 x 8.75 (mm: 146.05 x 222.25)
No. 1 3/4 Catalog inches: 6.5 x 9.5 (mm: 165.1 x 241.3) inches: 6.25 x 9 (mm: 158.75 x 228.6)
No. 3 Catalog inches: 7 x 10 (mm: 177.8 x 254) inches: 6.75 x 9.5 (mm: 171.45 x 241.3)
No. 6 Catalog inches: 7.5 x 10.5 (mm: 190.5 x 266.7) inches: 7.25 x 10 (mm: 184.15 x 254)
No. 8 Catalog inches: 8.25 x 11.25 (mm: 209.55 x 285.75) inches: 8 x 10.75 (mm: 203.2 x 273.05)
No. 9 3/4 Catalog inches: 8.75 x 11.25 (mm: 222.25 x 285.75) inches: 8.5 x 10.75 (mm: 215.9 x 273.05)
No. 10 1/2 Catalog inches: 9 x 12 (mm: 228.6 x 304.8) inches: 8.75 x 11.5 (mm: 222.25 292.1)
No. 12 1/2 Catalog inches: 9.5 x 12.5 (mm: 241.3 x 317.5) inches: 9.25 x 12 (mm: 234.95 x 304.8)
No. 13 1/2 Catalog inches: 10 x 13 (mm: 254 x 330.2) inches: 9.75 x 12.5 (mm: 247.65 x 317.5)
No. 14 1/2 Catalog inches: 11.5 x 14.5 (mm: 292.1 x 368.3) inches: 11.25 x 14 (mm: 285.75 x 355.6)
No. 15 Catalog inches: 10 x 15 (mm: 254 x 381) inches: 9.75 x 14.5 (mm: 247.65 x 368.3)
No. 15 1/2 Catalog inches: 12 x 15.5 (mm: 304.8 x 393.7) inches: 11.75 x 15 (mm: 298.45 x 381)

Square Envelopes

Square envelopes, constructed with side seams and contemporary square flap. This unusual shape attracts attention. Square envelopes are nonstandard and require additional postage to mail. --learn more about postage variables by visiting the US Postal Service

  • Square
Type Size Suggested Enclosure (varies according to insert thickness)
5 Square (5x5) inches: 5 x 5 (mm: 127 x 127) inches: 4.75 x 4.75 (mm: 120.65 x 120.65)
5 1/2 Square (5.5x5.5) inches: 5.5 x 5.5 (mm: 139.7 x 139.7) inches: 5.25 x 5.25 (mm: 133.35 x 133.35)
6 Square (6x6) inches: 6 x 6 (mm: 152.4 x 152.4) inches: 5.75 x 5.75 (mm: 146.05 x 146.05)
6 1/2 Square (6.5x6.5) inches: 6.5 x 6.5 (mm: 165.1 x 165.1) inches: 6.25 x 6.25 (mm: 158.75 x 158.75)
7 Square (7x7) inches: 7 x 7 (mm: 177.8 x 177.8) inches: 6.75 x 6.75 (mm: 171.45 x 171.45)
7 1/2 Square (7.5x7.5) inches: 7.5 x 7.5 (mm: 190.5 x 190.5) inches: 7.25 x 7.25 (mm: 184.15 x 184.15)
8 Square (8x8) inches: 8 x 8 (mm: 203.2 x 203.2) inches: 7.75 x 7.75 (mm: 196.85 x 196.85)
8 1/2 Square (8.5x8.5) inches: 8.5 x 8.5 (mm: 215.9 x 215.9) inches: 8.25 x 8.25 (mm: 209.55 x 209.55)
9 Square (9x9) inches: 9 x 9 (mm: 228.6 x 228.6) inches: 8.75 x 8.75 (mm: 222.25 x 222.25)
9 1/2 Square (9.5x9.5) inches: 9.5 x 9.5 (mm: 241.3 x 241.3) inches: 9.25 x 9.25 (mm: 234.95 x 234.95)

Baronial Envelopes

Baronial envelopes, constructed with a deep pointed flap and diagonal seams. Traditionally used for formal business announcements, invitations and greeting cards. Not recommended for machine insertion.

** This size is too small to mail.
  • Baronial
Type Size Suggested Enclosure (varies according to insert thickness)
Professional ** inches: 2.125 x 3.625 (mm: 53.975 x 92.075) inches: 2 x 3.5 (mm: 50.8 x 88.9)
#16 (Mrs.)** inches: 2.375 x 3.375 (mm: 60.325 x 85.725) inches: 2.25 x 3.125 (mm: 57.15 x 79.375)
#17 (Mr. & Mrs.)** inches: 2.6875 x 3.6875 (mm: 68.2625 x 93.6625) inches: 2.5625 x 3.5625 (mm: 65.0875 x 90.4875)
Gladstone** inches: 3.563 x 5.562 (mm: 90.5002 x 141.2748) inches: 3.375 x 5.375 (mm: 85.725 x 136.525)
4-Bar (or A1) inches: 3.625 x 5.125 (mm: 92.075 x 130.175) inches: 3.5 x 4.875 (mm: 88.9 x 123.825)
5-Bar inches: 4.125 x 5.625 (mm: 104.775 x 142.875) inches: 4 x 5.25 (mm: 101.6 x 133.35)
5 1/2-Bar inches: 4.375 x 5.75 (mm: 111.125 x 146.05) inches: 4.25 x 5.5 (mm: 107.95 x 139.7)
6-Bar inches: 4.75 x 6.5 (mm: 120.65 x 165.1) inches: 4.625 x 6.25 (mm: 117.475 x 158.75)
Lee inches: 5.25 x 7.25 (mm: 133.35 x 184.15) inches: 5.125 x 7 (mm: 130.175 x 177.8)
Linwood/Monona Inside inches: 5.25 x 7.5 (mm: 133.35 x 190.5) inches: 5 x 7.25 (mm: 127 x 184.15)
Monona Outside inches: 5.5 x 7.75 (mm: 139.7 x 196.85) inches: 5.25 x 7.5 (mm: 133.35 x 190.5)

Announcement Envelopes

Announcement envelopes, also called A-style. This popular design is ideal for stationery, photographs, greeting cards, small booklets, and much more. Designed with side seam construction and contemporary square flap. A-Envelopes and Baronial Envelopes can share common sizes - example: 5-1/2 Bar is the same dimension as A2, the defining differences are the flaps and the side seam construction. If these factors are not important to your project, then best to move forward with the envelope offering the most solutions for your active project.

  • Announcement
Type Size Suggested Enclosure (varies according to insert thickness)
A-2 inches: 4.375 x 5.75 (mm: 111.125 x 146.05 inches: 4.25 x 5.5 (mm: 107.95 x 139.7)
A-6 inches: 4.75 x 6.5 (mm: 120.65 x 165.1) inches: 4.625 x 6.25 (mm: 117.475 x 158.75)
A-7 inches: 5.25 x 7.25 (mm: 133.35 x 184.15) inches: 5.125 x 7 (mm: 130.175 x 177.8)
A-8 inches: 5.5 x 8.125 (mm: 139.7 x 206.375) inches: 5.375 x 7.875 (mm: 136.525 x 200.025)
A-9 inches: 5.75 x 8.75 (mm: 146.05 x 222.25) inches: 5.5 x 8.5 (mm: 139.7 x 215.9)
A-10 inches: 6 x 9.5 (mm: 152.4 x 241.3) inches: 5.875 x 9.25 (mm: 149.225 x 234.95)