Overview

Amazon reduced the maximum length for multi-item standard FBA boxes from 91.4 cm to 63.5 cm across UK and other marketplaces. The change applies only to new shipments created going forward, with boxes exceeding the limit subject to refusal at fulfillment centers or unplanned service fees. Width and height limits remain unchanged at 63.5 cm.

Key Points

• Length Reduced to 63.5 cm — Maximum box length dropped from 91.4 cm to 63.5 cm, matching existing width and height limits for uniform cube-shaped maximum
• New Shipments Only — Updated requirement applies exclusively to newly created shipments; existing inventory in fulfillment centers unaffected
• Refusal or Fees for Non-Compliance — Boxes exceeding 63.5 cm on longest side may be refused at receiving or incur unplanned service fees
• UK and Multiple Regions — Change active across Amazon UK and several other international marketplaces
• Faster Receiving Goal — Amazon states uniform dimensions streamline inbound receiving, stacking, sorting, and storage at fulfillment centers

Who This Affects

• Longer Products — Home goods, sporting equipment, bundled product sets, or items measuring 64-91 cm that previously fit within old length allowance
• Custom Box Users — Sellers who manufacture packaging sized to old 91.4 cm limit need new specifications
• Third-Party Prep Centers — Outsourced packing services must update box inventory and configurations
• Multi-Box Shipments — Some sellers may need to split items across more cartons, increasing total box count per shipment

Seller Impact

• Audit Box Inventory This Week — Measure all boxes currently in stock and flag any with longest side exceeding 63.5 cm for replacement or retirement
• Notify Prep Centers Within 24 Hours — Email third-party packing services the new 63.5 cm limit and confirm they have compliant box sizes in stock before your next shipment