Envelope Sizes

Standard Envelope Sizes and Dimensions

Not all sizes are available in all colors or paper stocks from the mill.

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COMMERCIAL/OFFICIAL
Commercial Flap on Large Dimension
Used for business and personal correspondence.
6 1/4 3.5″ x 6″ or 3 1/2″ x 6″  
6 3/4* 3.625″ x 6.5″ or 3 5/8″ x 6 1/2″ * popular size
7 3.75″ x 6.75″ or 3 3/4″ x 6 3/4″  
7 3/4 3.875″ x 7.5″ or 3 7/8″ x 7 1/2″  
Monarch 3.875″ x 7.5″ or 3 7/8″ x 7 1/2″ Pointed flap
8 5/8 3.625″ x 8.625″ or 3 5/8″ x 8 5/8″ Check
9* 3.875″ x 8.875″ or 3 7/8″ x 8 7/8″ * popular size
10* 4.125″ x 9.5″ or 4 1/8″ x 9 1/2″ * popular size
11 4.5″ x 10.375″ or 4 1/2″ x 10 3/8″  
12 4.75″ x 11″ or 4 3/4″ x 11″  
14 5″ x 11.5″ or 5″ x 11 1/2
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ANNOUNCEMENT
Square Flap on Large Dimension
For announcements, small booklets or even business stationery.
A style envelopes are made with text weight papers .
A1 3.625″ x 5.125″ or 3 5/8″ x 5 1/8″  
A2 * 4.375″ x 5.75″ or 4 3/8″ x 5 3/4″ * popular size
A6 * 4.75″ x 6.5″ or 4 3/4″ x 6 1/2″ * popular size
A7 * 5.25″ x 7.25″ or 5 1/4″ x 7 1/4″ * popular size
A8 5.5″ x 8.125″ or 5 1/2″ x 8 1/4″  
A9 5.75″ x 8.75″ or 5 3/4″ x 8 3/4″  
A10 6″ x 9.5″ or 6″ x 9 1/2″  
Slimline 3.875″ x 8.875″ or 3 7/8″ x 8 7/8
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BARONIAL
Pointed Flap on the Large Dimension
Classic design with a pointed flap for formal business announcments, invitations
and change of address .
4 Baronial 3.625″ x 5.125″ or 3 5/8″ x 5 1/8″  
5 Baronial 4.125″ x 5.625″ or 4 1/4″ x 5 5/8″  
5 1/2 Baronial * 4.375″ x 5.75″ or 4 3/8″ x 5 3/4″ * popular size
6 Baronial * 4.75″ x 6.5″ or 4 3/4″ x 6 1/2″ * popular size
Lee * 5.25″ x 7.25″ or 5 1/4″ x 7 1/4″ * popular size
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CATALOG
Open End Flap on the Short Dimension
inserted by hand
1 Catalog * 6″ x 9″     * popular size
1 3/4 Catalog 6.5″ x 9.5″ or 6 1/2″ x 9 1/2″  
3 Catalog 7″ x 10″      
6 Catalog 7.5″ x 10.5″ or 7 1/2″ x 10 1/2″  
8 Catalog 8.25″ x 11.25″ or 8 1/4″ x 11 1/4″  
9 3/4 Catalog 8.75″ x 11.25″ or 8 3/4″ x 11 1/4″  
10 1/2 Catalog* 9″ x 12″     * popular size
12 1/2 Catalog * 9.5″ x 12.5″ or 9 1/2″ x 12 1/2″ * popular size
13 1/2 Catalog * 10″ x 13″     * popular size
14 1/2 Catalog 11.5″ 14.5″ or 11 1/2″ x 14 1/2″  
15 Catalog 10″ x 15″      
15 1/2 Catalog 12″ x 15.5″ or 12″ x 15 1/2″
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BOOKLET
Open Side Flap on the Long Dimension
inserted and sealed with equipment
3 Booklet 4.75″ x 6.5″ or 4 3/4″ x 6 1/2″  
4 1/2 Booklet 5.5″ x 7.5″ or 4 1/2″ x 7 1/2″  
5 Booklet 5.5″ x 8.125″ or 5 1/2″ x 8 1/8″  
6 Booklet 5.75″ x 8.875″ or 5 3/4″ x 8 7/8″  
6 1/2 Booklet * 6″ x 9″     * popular size
6 5/8 Booklet 6″ x 9.5″ or 6″ x 9 1/2″  
6 3/4 Booklet 6.5″ x 9.5″ or 6 1/2″ x 9 1/2″  
7 1/4 Booklet 7″ x 10″      
9 Booklet 8.75″ x 11.5″ or 8 3/4″ x 11 1/2″  
9 1/2 Booklet * 9″ x 12″     * popular size
10 Booklet * 9.5″ x 12.625″ or 9 1/2″ x 12 5/8″ * popular size
13 Booklet * 10″ x 13″     * popular size

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Envelope Sizes June 8, 2015