Dimensions of usps priority mail boxes

The United States Postal Service (USPS) offers a variety of Priority Mail boxes in different sizes to accommodate various package dimensions. Here are the dimensions for each size of USPS Priority Mail box:

Small Flat Rate Box

• Length: 5.5 inches (14 cm)
• Width: 8.5 inches (22 cm)
• Height: 1.5 inches (3.8 cm)
• Weight limit: 70 lbs (31.8 kg)

Medium Flat Rate Box

• Length: 11.0 inches (28 cm)
• Width: 13.5 inches (34 cm)
• Height: 5.5 inches (14 cm)
• Weight limit: 70 lbs (31.8 kg)

Large Flat Rate Box

• Length: 12.0 inches (30.5 cm)
• Width: 12.0 inches (30.5 cm)
• Height: 16.0 inches (40.6 cm)
• Weight limit: 70 lbs (31.8 kg)

Regional Rate Box A

• Length: 12.5 inches (31.8 cm)
• Width: 15.5 inches (39.4 cm)
• Height: 6.5 inches (16.5 cm)
• Weight limit: 20 lbs (9 kg)

Regional Rate Box B

• Length: 14.5 inches (36.8 cm)
• Width: 18.5 inches (47 cm)
• Height: 8.5 inches (21.6 cm)
• Weight limit: 20 lbs (9 kg)

Regional Rate Box C

• Length: 16.5 inches (41.9 cm)
• Width: 20.5 inches (52.1 cm)
• Height: 10.5 inches (26.7 cm)
• Weight limit: 20 lbs (9 kg)

Large Flat Rate Envelope

• Length: 12.5 inches (31.8 cm)
• Width: 15.5 inches (39.4 cm)
• Height: 0.5 inches (1.3 cm)
• Weight limit: 70 lbs (31.8 kg)

Please note that these dimensions are subject to change, and you should always check the USPS website for the most up-to-date information on Priority Mail box dimensions and weight limits.