Finding the ideal sized boxes to ship your products to Amazon FBA fulfillment centers can be a major headache. You want boxes that are durably constructed yet spacious enough to efficiently fit your merchandise. However, Amazon restricts any single side of an FBA box to be no more than 24 inches long.

After extensive testing of numerous box sizes and dimensions, I’ve found the 24x18x18 and 18x18x16 moving boxes from Lowes to be optimally designed for shipping products to FBA while following Amazon’s requirements. In this detailed article, I’ll explain why these specific dimensions from Lowes are so well-suited for FBA shipments.

Note: This article contains affiliate links and I earn a small commission from purchases made through these links at no extra cost to you.

Why Lowes 24x18x18 Boxes Are Perfect For FBA

The 24x18x18 moving box sold at Lowes has exterior dimensions that maximize usable interior cubic space while still adhering to Amazon’s critical 24 inch max side rule.

With its cubic shape and generous interior capacity, the Lowes 24x18x18 box can comfortably accommodate a wide variety of large, oversized, or irregularly shaped products.

I like to leverage these 24x18x18 boxes for creatively consolidating multiple smaller FBA orders going to the same Amazon fulfillment center into one larger combined shipment box. Consolidating orders this way can massively reduce FBA shipping costs compared to using many smaller individual boxes.

The 24x18x18 cubic dimensions are strategically aligned with the tiered pricing structure of Amazon FBA shipping fees. This box size fully optimizes space right up to the threshold of the next pricing tier jump at 25 cubic feet.

Lowes provides both single wall and heavy duty triple wall versions of the 24x18x18 moving box:

  • Single Wall 24x18x18 – Lighter cardboard but less durable. Okay for lighter products.
  • Heavy Duty 24x18x18 – Heavier but very rugged 3-ply construction. Highly recommended for heavy or fragile FBA products.

Why Lowes 18x18x16 Boxes Are Also Great

If you require additional oversized box options for FBA shipments while staying strictly under 24 inches per side, the 18x18x16 moving box from Lowes is an excellent choice.

This box provides similarly voluminous interior cubic space as the 24x18x18, while still satisfying Amazon’s maximum exterior side dimension policy. The 18x18x16 works fantastically for large item sets, bundles, or bulky individual units.

As with the 24x18x18, Lowes sells both single wall and heavy duty triple wall versions of the 18x18x16 moving box:

An added benefit is that Lowes provides free shipping for orders over $45. I’ve found the boxes always arrive in pristine condition, professionally packaged and shipped quickly via FedEx in just 3-5 days. You can further maximize savings by using cashback sites like TopCashback.com or Rakuten when ordering.

Maximize Cubic Volume for FBA

Strategically using box dimensions like the 24x18x18 and 18x18x16 moving boxes from Lowes allows you to maximize usable cubic volume for Amazon FBA orders.

You can fully leverage their spacious interiors while still satisfying Amazon’s key shipping requirements. Opting for heavy duty boxes provides enhanced protection for high value merchandise.

Sizing and constructing boxes properly ensures your FBA shipments arrive intact without damage. Let me know in the comments if you use any other specific box dimensions that work great for your FBA products!