Usps Buy Envelopes Direct
đź“Ť If your envelope is "non-machinable" (square, rigid, or has string ties), you'll need to pay an extra surcharge.
Specialty sites like Envelopes.com offer jumbo or custom sizes. đź“Ź Size & Price Rules usps buy envelopes
The "No. 10" envelope (9.5" x 4.125") is the most common choice. đź“Ť If your envelope is "non-machinable" (square, rigid,
The USPS provides shipping supplies if you use their expedited services. You can order these on the official USPS Store. or has string ties)
To qualify for standard letter rates (starting at for a Forever stamp), your envelope must meet these USPS requirements : Shape: Must be rectangular. Max Size: 11.5" long x 6.125" high. Thickness: No more than 1/4" thick.