Question
What is the minimum thickness postcard the Post Office will accept?
Answer
Just as the post office caps how thick a postcard can be, it also sets a floor so the piece is sturdy enough to travel. According to the USPS, the minimum thickness for a postcard is 7 points.
- Minimum mailable postcard thickness is 7 pt.
- Thinner stock may not meet USPS mailing standards.
- Pair this with the 16 pt maximum to keep your postcard within the mailable range.
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