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This article applies to selling in: United States

SFP Item Size, Weights and Dimensions

Standard-size versus oversize

A standard-size item is one that, when fully packaged, weighs 20 lb or less and does not exceed:

  • 18 inches on its longest side
  • 14 inches on its median side
  • 8 inches on its shortest side

Any item exceeding these dimensions is considered oversize.

Important: If a product is sold as a set, the weight and dimensions are the combined total of all of the items in the set packaged together.

As a SFP Seller, you can go to Manage Seller Fulfilled Prime page to view your product’s size-tier classification (Column: Size Tier) and packaged weights and dimensions (Column: Item Package Dimensions). In the Item Package Dimensions column, longest side of the product will be displayed as length, median side as width and shortest side as height.

Update packaged weight and dimensions

You can update a product’s packaged weight and dimensions in the following ways:


  1. Click on the Update link in column Item Package Dimensions on Manage SFP page for the product you want to update. This will take you to the Edit Product Info page. On the More Details tab, you can update the following fields:
    • ‘Package Weight’ or ‘Weight’ whichever is available
    • ‘Package Dimensions’

    When you have edited the fields for your product, click the Save and finish button.

  2. You can also update your product’s packaged weight and dimensions directly through the Manage Inventory page. Go to Manage Inventory. Click the Edit button to the right of the product you want to update. This will take you to the Edit Product Info page. On the More Details tab, you can update the following fields:
    • ‘Package Weight’ or ‘Weight’ whichever is available
    • ‘Package Dimensions’

    When you have edited the fields for your product, click the Save and finish button.

  3. To update more than one product at a time through an inventory file upload, follow these steps: Under the Inventory menu, choose Add Products Via Upload. Choose a Product Type and generate an advanced inventory file template. Update the following fields and re upload the template:
    • Package_height
    • Package_width
    • Package_length
    • Package_dimensions_unit_of_measure
    • Package_weight
    • Package_weight_unit_of_measure

    Your product information will update on Manage Seller Fulfilled Prime page typically within 1 hour but may take several hours during peak times.

Important: Amazon may verify the packaged weight and dimensions of a product using representative samples. If there is a difference between Amazon’s information and a seller’s information, Amazon’s information about a product’s packaged weight and dimensions will be displayed on Manage Seller Fulfilled Prime page and will be used to classify the product as Standard-size or Oversize. Amazon may change its information about a product’s packaged weight and dimensions from time to time to reflect updated measurements

Submitting your request

After updating a product’s packaged weight and dimensions, if you still believe that the packaged weight and dimensions displayed on Manage Seller Fulfilled Prime page are inaccurate, contact Seller Support and open a research request.

Provide the following information in your request:

  • Your values of packaged weight and dimensions for the product with the units of measure.
  • Photos of the product with each dimension (length, width and height) and weight measured using a scale.

We will review your request, and if valid, we will update the product’s packaged weight and dimensions with your information.

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