How big are priority mail flat rate boxes
The United States Postal Service (USPS) offers several Priority Mail Flat Rate box sizes, each with its own dimensions and weight limits. Here are the current sizes and dimensions of Priority Mail Flat Rate boxes:
- Small Flat Rate Box: 5-1/2" x 8-1/2" x 1-1/2" (13.97 cm x 21.59 cm x 3.81 cm)
- Weight limit: 70 lbs (31.75 kg)
- Medium Flat Rate Box: 11" x 13-1/2" x 2" (27.94 cm x 34.29 cm x 5.08 cm)
- Weight limit: 20 lbs (9.07 kg)
- Large Flat Rate Box: 12" x 12" x 5-1/2" (30.48 cm x 30.48 cm x 13.97 cm)
- Weight limit: 20 lbs (9.07 kg)
- Extra Large Flat Rate Box: 12-1/2" x 12-1/2" x 6" (31.75 cm x 31.75 cm x 15.24 cm)
- Weight limit: 20 lbs (9.07 kg)
- Regional Rate Box: 13" x 13" x 3-1/2" (33.02 cm x 33.02 cm x 8.89 cm)
- Weight limit: 15 lbs (6.80 kg)
Please note that these dimensions are for the outside of the box, and the inside dimensions may be slightly smaller. Additionally, the weight limits are for the total weight of the contents, including packaging materials and any additional items.
It's always a good idea to check the USPS website or consult with a postal representative for the most up-to-date information on Priority Mail Flat Rate box sizes and weight limits.