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'll be able to determine the product size tier for an item. To do this, know the unit weight, product volume and dimensions, and the dimensional weight of the item. |
Fees that use this attribute |
Monthly inventory storage fees Fulfillment fees for Multi-Channel Fulfillment orders |
Related terms |
Product size tier | Shipping weight1 | Longest side | Median side | Shortest side | Length + girth |
---|---|---|---|---|---|
Small standard-size | Up to 16 oz | Up to 15 inches | Up to 12 inches | Up to 0.75 inch | n/a |
Large standard-size | Up to 20 lb | Up to 18 inches | Up to 14 inches | Up to 8 inches | n/a |
Small oversize | Up to 70 lb | Up to 60 inches | Up to 30 inches | n/a | Up to 130 inches |
Medium oversize | Up to 150 lb | Up to 108 inches | n/a | n/a | Up to 130 inches |
Large oversize | Up to 150 lb | Up to 108 inches | n/a | n/a | Up to 165 inches |
Special oversize | Over 150 lb | Over 108 inches | n/a | n/a | Over 165 inches |
1) Shipping weight is the greater of unit weight or dimensional weight for determining size tiers.
Product size tier | Shipping weight1 | Longest side | Median side | Shortest side | Length + girth |
---|---|---|---|---|---|
Small standard-size | Up to 16 oz | Up to 15 inches | Up to 12 inches | Up to 0.75 inch | n/a |
Large standard-size | Up to 20 lb | Up to 18 inches | Up to 14 inches | Up to 8 inches | n/a |
Large bulky | Up to 50 lb | Up to 59 inches | Up to 33 inches | Up to 33 inches | Up to 130 inches |
Extra-large 0 to 50 lb | Up to 50 lb | Extra-large exceeds 59 inches for the longest side or 33 inches for the median side or 33 inches for the shortest side or 130 inches for length + girth, or if the product’s greater of unit weight or dimensional weight exceeds 50 lb. | |||
Extra-large 50+ to 70 lb | 50+ to 70 lb | ||||
Extra-large 70+ to 150 lb | 70+ to 150 lb | ||||
Extra-large 150+ lb | Over 150 lb |
1) Shipping weight is the greater of unit weight or dimensional weight for determining size tiers.
For large standard, oversize (excluding special oversize), large bulky, and extra-large (excluding 150+ lb), Amazon uses dimensional weight when it’s greater than the unit weight to calculate fees. Fees for small standard, special oversize, and extra-large 150+ lb are calculated using only unit weight.
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 look up your unit weight: