Dimensional weight pricing applies to Priority Mail packages shipped to Zones 5-8 and exceed which dimensional thresholds?

Dimensional weight pricing applies to Priority Mail packages shipped to Zones 5-8 and exceed which dimensional thresholds?

• A. Exceed 12x12x12 inches or 17,280 cubic inches
• B. Exceed 18x18x18 inches or 20,000 cubic inches
• C. Exceed 10x10x10 inches or 1,000 cubic inches
• D. Exceed 24x24x24 inches or 30,000 cubic inches

Answer: (A)

Dimensional weight pricing charges based on the space a package occupies in transit, not just its actual weight. For Priority Mail shipments to Zones 5–8, this approach kicks in when the package is large enough to take more space than its weight would indicate. The thresholds used are: if any dimension exceeds 12 inches, or if the package’s volume exceeds 17,280 cubic inches. When either is met, you compare the dimensional weight (volume in cubic inches divided by the carrier’s DIM divisor) to the actual weight and use the higher value for the postage. For example, a box 13 by 10 by 9 inches already meets the 12-inch dimension rule, so DIM pricing applies and you’d compute its dimensional weight and compare to actual weight. If a package’s volume is extremely large, surpassing 17,280 cubic inches, that alone triggers DIM pricing as well. The other options propose different size or volume thresholds that USPS does not use for this scenario, so they don’t apply here.

Dimensional weight pricing charges based on the space a package occupies in transit, not just its actual weight. For Priority Mail shipments to Zones 5–8, this approach kicks in when the package is large enough to take more space than its weight would indicate. The thresholds used are: if any dimension exceeds 12 inches, or if the package’s volume exceeds 17,280 cubic inches. When either is met, you compare the dimensional weight (volume in cubic inches divided by the carrier’s DIM divisor) to the actual weight and use the higher value for the postage. For example, a box 13 by 10 by 9 inches already meets the 12-inch dimension rule, so DIM pricing applies and you’d compute its dimensional weight and compare to actual weight. If a package’s volume is extremely large, surpassing 17,280 cubic inches, that alone triggers DIM pricing as well. The other options propose different size or volume thresholds that USPS does not use for this scenario, so they don’t apply here.