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Standard Envelopes
Styles, Sizes and Measurements

Standard envelopes are available pre-made in a multitude of different sizes, shapes, colors and types of paper. Non-stock envelopes can be custom-made to meet specific requirements, although they are expensive in small quantities.


Business & Correspondence Envelopes
Styles, Sizes and Measurements

business envelopes types

#10 Envelope The most popular business envelope in the USA 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. The #10 envelope that has a square flap can create a unique look to the "so called" common envelope.

Office / Commercial envelopes, are 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 are not recommended for machine insertion.

envelope window size and position

Standard Window Envelopes

The standard window (a left-hand window) size and position is the same for all commercial window envelopes, regardless of the size of the envelope. It measures 4.5" wide and 1.125" deep. It is positioned 0.875" from the left side of the envelope and 0.5" from the bottom of the envelope.

commercial business envelope
Business & Correspondence
Envelope Types & Sizes
Envelope Type Envelope Size Envelope Type Envelope Size
#6¼ 3½″ x 6″ #10 4⅛″ x 9½″
#6¾ 3⅝″ x 6½″ DL 4.313″ x #8⅝
#8⅝ 3⅝″ x 8⅝″ #11 4½″ x 10⅜″
#7 3¾″ x 6¾″ #12 4¾ ″ x 11″
#7¾ 3⅞″ x 7½″ #14 5″ x 11½″
#9 3⅞″ x 8⅞″ #16 6″ x 12″
#9 Poicy 4″ x 9″

Booklet Envelopes

Booklet envelopes are constructed with a side seam and open on the top (the longest way) of the envelope dimensions, making them suitable for automatic insertion machines and ideal for volume mailing.

Booklet Envelope
Booklet Envelopes
Envelope Types & Sizes
Envelope Type Envelope Size Envelope Type Envelope Size
3 4¾″ x 6½″ 7″ x 10″
5½″ x 7½″ 7½″ x 10½″
5 5½″ x 8⅛″ 9 8¾″ x 11½″
6 5¾″ x 8⅞″ 9″ x 12″
6″ x 9″ 10 9½″ x 12⅝″
6⅝ 6″ x 9½″ 13 10″ x 13″
7″ x 10″

Catalog Envelopes

Catalog envelopes are constructed with a center seam making them more durable for mailing heavy-weight materials.

catalog envelope
Catalog Envelopes
Envelope Types & Sizes
Envelope Type Envelope Size Envelope Type Envelope Size
1 6″ x 9″ 10½ 9″ x 12″
6½″ x 9½″ 12½ 9½″ x 12½″
3 7″ x 10″ 13½ 10″ x 13″
6 7½″ x 10½″ 14½ 11½″ x 14½″
8 8¼″ x 11¼″ 15 10″ x 15″
8¾″ x 11½″ 15½ 12″ x 15½″

Announcemnt & Invitation Envelopes
Styles, Sizes and Measurements

"A" Style Announcement Envelopes

This envelope design is designed with side seam construction and contemporary square flap.

Announcements with square-flaps,  "A" en
velopes
"A" Announcement Envelopes
Envelope Types & Sizes
Envelope Type Envelope Size Envelope Type Envelope Size
A-2 4⅜″ x 5¾″ A-8 5½″ x 8⅛″
A-6 4¾″ x 6½″ A-9 5¾″ x 8¾″
A-7 5¼″ x 7¼″ A-10 6″ x 9½″

Baronial Envelopes

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

Baronial Envelope
Baronial Envelopes
Envelope Types & Sizes
Envelope Type Envelope Size Envelope Type Envelope Size
2 4¼″ x 3.1875″ 6 6½″ x 4¾″
4 5⅛″ x 3⅝″ Gladstone 5⅝″ x 3⅝″
5 5⅝″ x 4⅛″ Astor 5⅝″ x 3⅝″
5¼″ x 4¼″ Lee 7¼″ x 5⅛″
5⅝″ x 4⅜″

Square Envelopes

Square envelopes are used primarily with announcements, advertising, and specialty greeting cards or other mailings where the sender wants to draw attention to the contents.

square announcement envelopes
Square Envelopes
Envelope Types & Sizes
Envelope Type Envelope Size Envelope Type Envelope Size
5″ 5″ x 5″ 7½″ 7½″ x 7½″
5½″ 5½″ x 5½″ 8″ 8″ x 8″
6″ 6″ x 6″ 8½″ 8½″ x 8½″
6½″ 6½″ x 6½″ 9″ 9″ x 9″
7″ 7″ x 7″ 9½″ 9½″ x 9½″

Coin Envelopes

A Coin Envelope is a small open end envelope, usually with center seam construction, often used for small parts, jewelry, coins, etc.

coin envelope
Coin Envelopes
Envelope Types & Sizes
Envelope Type Envelope Size Envelope Type Envelope Size
1 2¼″ x 3½″ 5 2⅞″ x 5¼″
3 2½″ x 4¼″ 3⅛″ x 5½″
4 3″ x 4½″ 6 3⅜″ x 6″
3″ x 4⅞″ 7 3½″ x 6½″

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Envelope Specifications Template

Downloadable Envelope Sizes Spec Sheets
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Download Envelope Specifications PDF


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