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Tech Notes

Mail piece dimensions

MAILPIECE DIMENSIONS

LETTERS AND POSTCARDS
Letters Postcards
Dimensions Minimum (inches) Maximum (inches) Dimension (inches) Minimum (inches) Maximum (inches)
Height 3.5 6.125 Height 3.5 6
Length 5.0 11.5 Length 5.0 9
Thickness .007 0.25 Thickness .007 .016
Aspect Ratio 1.3 2.5
FOLDED SELF-MAILERS FLATS
Dimensions Minimum (inches) Maximum (inches) Dimension (inches) Minimum (inches) Maximum (inches)
Height 3.5 6 Height 6.125 12
Length 5.0 10.5 Length 11.5 15
Thickness .007 0.25 Thickness 0.25 0.75
Aspect Ratio 1.3 2.5 Flats must exceed at least one minimum dimension
Up to 1 oz Requirement: 70# Text or Offset Paper
1 - 3 oz Requirement:  Minimum of 80# paper; Seals without perf.
Glue may be used as an alternative

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Thank you for continuing to produce a wonderful tool for the mail ing industry.   We continually enjoy the capabilities of your product. Once again, thank you for producing such an excellent product.
D.H., San Diego, CA