What mail piece size qualifies for postcard rate?

The minimum size for a First Class postcard is 3.5″ x 5″ and the maximum is 4.25″ x 6″. Mail piece thickness is 0.007″ to 0.016″. (Note: There is no postcard rate for standard mailings.)

We have provided an excellent graphic with all the dimensions you may need.

Direct Mail Postcard Sizes

February 20, 2019

(1 min. read)