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In a trick being appreciated by Amazon FBA vendors and the worldwide Prep Center, Amazon has officially updated its inbound box size boundaries – and this is very good news for any shipping inventory for the Amazon supply centers.
Effective from June 2025, this update relaxes the 25 -inch dimension cap of Amazon, causing more flexibility to sellers in packaging and reduces the need for manual repA This is not just a modest twice – this is a strategic change that can significantly affect labor, shipping costs and operational efficiency.
At Stock and Ship, we help sellers capitalize on every advantage Amazon offers—and this box size update is no exception.
What Changed?
Until recently, Amazon required that no side of any inbound box exceed 25 inches. If a box was even slightly longer in any dimension, it could be flagged, rejected, or incur additional fees.
But as of June 2025, the new box size limits for FBA shipments are as follows:
This means sellers can now ship longer boxes—a much-needed relief for those working with factory-sealed or supplier cartons that exceed the former 25-inch rule.
Whether you’re shipping private-label products from China or replenishing wholesale items from U.S. suppliers, these relaxed size requirements are game-changing.
Here’s how:
For fulfillment providers like Stock and Ship, this rule change streamlines operations and allows for:
Our warehouse team is already seeing measurable improvements. With fewer boxes being flagged for size violations, we’ve reduced unnecessary delays and improved client satisfaction.
Stock and Ship, located in a tax-free zone, is fully equipped to adjust to this new rule—offering fast, compliant, and scalable prep solutions for Amazon sellers across the globe.
At Stock and Ship, we’re proactive—not reactive—when it comes to Amazon’s constantly evolving FBA policies. Our infrastructure and processes are built around compliance, speed, and scalability.
When Amazon updates its rules, we’re ready—so you don’t have to worry about compliance or penalties.
Take full advantage of Amazon’s new FBA packaging dimensions with these seller-focused tips:
The June 2025 Amazon FBA box size rule update is a major win for sellers and prep centers alike. Amazon has reduced one of the most rigorous fulfillment sanctions in recent years, allowing the inbound box to a length of up to 36 inches.
This change does not only reduce costs – it also speeds up operations, reduces waste, and intelligent logistics supports strategies. Whether you are an emerging Amazon vendor or an 8-incense brand, new rules give you more freedom to grow.
At Stock and Ship, we’re here to help you capitalize on these changes—without the headaches. From receiving and storage to prep and shipping, we ensure your inventory always meets Amazon’s standards.
The new rules became effective in June 2025, as announced on Amazon Seller Central.
Amazon now allows boxes up to 36 inches in length, and 25 inches in width and height. This is an increase from the previous uniform 25-inch limit on all dimensions.
Yes, the update benefits private-label, wholesale, and online arbitrage (OA) sellers alike—especially those who were previously forced to repack supplier cartons.
Boxes that exceed the updated dimensions may still face rejections, additional fees, or compliance issues. It’s critical to follow the latest Amazon FBA shipping guidelines.
Stock and Ship has already integrated the new size rules into our standard operating procedures. We help sellers optimize packaging, reduce repacking costs, and ensure smooth inbound shipments to Amazon.
Need efficient logistics? We offer hassle-free shipping, warehousing, and supply chain solutions to ensure safe, on-time delivery!
Sign up today and save 20% on your first order. Fast, affordable, tax-free Amazon prep fulfillment.