Dimension |
Minimum |
Maximum |
|
Height |
3-1/2 inches |
6-1/8 inches |
|
Length |
5 inches |
11-1/2 inches |
|
Thickness |
0.007 inch |
1/4 inch |
|
First-Class Mail Letter Prices
Weight
Not Over
(ounces)
|
Price |
1 |
$0.42 |
2 |
0.59 |
3 |
0.76 |
3.5 |
0.93 |
Any item smaller than the minimum dimensions is not
mailable.
For larger items, see large envelopes or packages.
For envelopes, length is the dimension parallel to the address.
Letters that meet
one or more of the nonmachinable characteristics below are subject
to the $0.20 nonmachinable surcharge. For items over 3.5 ounces,
see large envelope or package prices.
• |
It is too rigid – does
not bend easily |
• |
It has clasps, string,
buttons, or similar closure devices |
• |
It has an address parallel
to the shorter dimension of the letter |
• |
It contains items such
as pens that cause the surface to be uneven |
• |
The length divided by
height is less than 1.3 or more than 2.5 (calculate this below) |
Square Envelope
The minimum
size for a square envelope is 5 x 5 inches.
Square letters are subject to the $0.20 nonmachinable
surcharge.
|