Shipping Supplies Boxes Priority Mail Flat Rate® Small Box Single, Pack of 10 or 25 8-11/16" (L) x 5-7/16" (W) x 1-3/4" (H) $0.00

Sep 25, 2025 · You can order USPS flat rate boxes and envelopes, including 12 x, 4 x, and 2 x sizes, directly online or pick them up at your post office—free of charge. This helps streamline shipping …

It is perfect for jewelry, electronics, event tickets, or other small items that need expedited shipping. And like all USPS flat rate boxes and envelopes, the box is available free of charge and also can be used …

Discover USPS flat-rate box dimensions—small, medium, large, APO/FPO tiers—and when flat-rate boxes offer the best value. Includes dimensions, weight limits, and specialty options.

Feb 1, 2021 · In this complete guide, we'll cover everything you need to know about USPS flat rate boxes prices and sizes, Priority Mail shipping options, and when to choose flat rate versus other …

Priority Mail, including Priority Mail Flat Rate shipping products, has fast shipping times (2-3 days) with flexible prices. Get free flat rate boxes and print postage labels online.

Find durable cardboard boxes for moving, storing, and shipping. Shop a huge selection of shipping boxes in various sizes, shapes, and closure types.