|Definition||Product size tiers are measurement categories based on the unit weight, product dimensions, and dimensional weight of a packaged item.|
|Using this article||The product size tier of an item is used to calculate certain fees. After reading this article, you will be able to determine the product size tier for an item. To accomplish this task, you should first know the unit weight, product volume and dimensions, and the dimensional weight of the item.|
|Fees that use this attribute|
|Product size tier||Unit weight*||Longest side||Median side||Shortest side||Length + girth|
|Small standard-size||16 oz||15 inches||12 inches||0.75 inch||n/a|
|Large standard-size||20 lb||18 inches||14 inches||8 inches||n/a|
|Small oversize||70 lb||60 inches||30 inches||n/a||130 inches|
|Medium oversize||150 lb||108 inches||n/a||n/a||130 inches|
|Large oversize||150 lb||108 inches||n/a||n/a||165 inches|
|Special oversize||Over 150 lb||Over 108 inches||n/a||n/a||Over 165 inches|
For non-apparel, Amazon will use dimensional weight when it is greater than the unit weight for all large standard, small oversize, medium oversize, and large oversize units.
Go to Dimensional weight for more details.
For products you currently have in FBA inventory, you can also look up your unit weight using the Fee Preview report. To do so:
|Mobile device case
Dimensions: 13.8 x 9 x 0.7 inches
Unit weight: 2.88 oz
Product size tier: Small standard size
Dimensions: 8.5 x 4.8 x 1 inches
Unit weight: 6.08 oz
Product size tier: Large standard size
The measurement system for product dimensions and volume vary depending on the local standard in which the fees are calculated. The fee Help content for the region indicates which measurement system and units are used for that region.