Standard Sizes

Neenah Paper envelopes are available in all of the standard sizes in your favorite fine paper brands. Crane Paper envelopes are also available in a wide range of sizes. Select the best option for your correspondence or project. 

Letter size mail includes all envelopes and postal cards, as well as any mail piece less than 1/4" thick.  It must be rectangular in shape, where length divided by height is not less than 1.3, nor more than 2.5.  Nonstandard letter size mail that does not meet specific height to length ratios will be subjected to surcharge.

View Entire Envelope Offering


Minimum DimensionsMaximum Dimensions


5 inches

11.5 inches


3.5 inches

6.125 inches


0.007 inch

0.25 inch

No. 10 standard business envelopes 
5 1/2 Baronial announcement sizes in three colors 
A2, A6, and A7 envelopes 
Paper finishes available: smooth, laid, linen, lineal, wove 
To purchase Neenah Paper envelopes directly, you can browse by brand or use the search field. 

To view a larger diagram, click the envelope name. 
No. 10 Business Envelope w/Square Flap = 4 1/8" x 9 1/2" 
No. 10 policy envelope = 4 1/8" x 9 1/2" 
No. 10 Business Envelope w/Commercial Flap = 4 1/8" x 9 1/2" 
5 1/2 Baronial Envelope = 4 3/8" x 5 3/4" 
A7 Announcement Envelope = 5 1/4" x 7 1/4" 
A6 Announcement Envelope = 4 3/4" x 6 1/2" 
A2 Announcement Envelope = 4 3/8" x 5 3/4"

Please contact your Neenah Paper authorized envelope converters for more information concerning envelopes. Neenah Paper authorized converters are Leader Paper Products and National Envelope Corporation.


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