Postcards & Letters
Postcard Requirements
Minimum size
Maximum size
Length: 5 inches
Length: 6 inches
Height: 3.5 inches
Height: 4.5 inches
Thickness: .007 inch
Thickness: .016 inch
Letter Requirements
Minimum size
Maximum size
Length: 5 inches
Length: 11.5 inches
Height: 3.5 inches
Height: 6.125 inches
Thickness: .007 inch
Thickness: .25 inch
Layout for Front of Letter or Postcard
Return area no more than 50% of
length or 33% of height of mail piece
Permit or postage area:
3.5" wide x 1.5" high
University of Washington
Dept.XXXXXX
Street addressXXXXXX
Box XXXXXX
City, State, Zip code
4"
2"
.5"
CLEAR ZONE FOR PRINTING
RECIPIENT'S ADDRESS
Sample design for mail pieces between 5" x 3.5" and 11.5" x 6.125"
Letter is better — approximately half the postage as a flat-size mail piece!
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UW Mailing Services
