Usps Parcel Envelope : Useful Links
Sizes for postcards · Sizes for Letters · Sizes for parcels that weigh 13 ounces or less.
be processed on Postal Service equipment, your parcel is considered "machinable.
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All large envelopes (flats) must be rectangular. “Rectangular” includes square- shaped pieces. Packages (Parcels). The single-piece 1-ounce rate for packages is ...
Priority Mail Express Padded Flat Rate Envelope 12-1/2" x 9-1/2" ...
When looking up the price for a parcel in the shape of a tube, first select
fold your large envelope to be letter-sized, or you could redesign your parcel to ...