Link to "3-2 Dimensions for Letter‑Size Mail and Flat‑Size Mail" Link to contents for "3 Basics"      Link to "3-2.2 Flat‑Size Mail (Enhanced Carrier Route Saturation Mailings)"

3-2.1 Letter–Size Mail

Exhibit 3-2.1 lists the minimum and maximum dimensions for letter–size mail.

Exhibit 3-2.1 

Dimensions for Letter–Size Mail

 

 

Minimum

Maximum

Height

3–1/2 inches

6–1/8 inches

Length

5 inches

11–1/2 inches

Thickness

0.007 inch

0.250 inch (i.e., 1/4 inch)

For letters, the length is the dimension parallel to the address as read.




Link to "3-2 Dimensions for Letter‑Size Mail and Flat‑Size Mail" Link to contents for "3 Basics"      Link to "3-2.2 Flat‑Size Mail (Enhanced Carrier Route Saturation Mailings)"