Free USPS Priority Mail Boxes are Smaller

By Baillee Perkins
Oct 25, 2021

In an effort to make shipping easier and transportation more efficient, USPS has decreased the size of their Free Priority Mail boxes. This change varies from ⅛” to 2 ½,” depending on the type of box. If this announcement has you feeling holidazed, we’re here to provide you with more information regarding these changes and a refresher on Priority Mail as a service.

USPS ServiceNEW Outside DimensionsSummary of
Change
Priority Mail
Tyvek Envelope
11-5/8” (W) x 15” (L)Length of envelope is
shorter by 1/8"
Priority Mail APO/FPO
Tyvek Envelope (Mili-Pac)
11-5/8” (W) x 15” (L)Length of envelope is
shorter by 1/8"
Priority Mail Large
Flat Rate Box
6” (H) x 12” (W) x 12-1/4” (L)Width of box is
1/4" shorter
Priority Mail APO/FPO
Large Flat Rate Box
6” (H) x 12” (W) x 12-1/4” (L)Width of box is
1/4" shorter
Priority Mail
Box 1092
2-7/8” (H) x 12” (W) x 13-11/16” (L)Width of box is
1/4" shorter
Priority Mail
Box 1095
3-1/8” (H) x 12’ (W) x 15” (L)Width of box is
1/2" shorter,
length 5/8" shorter
Priority Mail
Regional Rate
Box B
3” (H) x 12” (W) x 15” (L)Width of box is
2 1/2" shorter,
length is 1 1/4" shorter
Priority Mail
Box 7
8-1/2” (H) x 12” (W) x12-1/4” (L)Width of box is
1/4" shorter

While the sizes might have changed, Priority Mail services haven’t. Priority Mail is a great way to get your shipments out in a fast and cost-efficient way. If you aren’t sure which services are available with Priority Mail or need a quick recap, we’ve got you covered

Priority Mail box sizes may have changed, but the wonderful information in our eBook hasn’t! You’ll find even more resources for holiday shipping like the holiday shipping cutoff dates, email tips, return information, and much more over on our Holiday Hub

 

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