Amazon AWD Size Limits Just Changed: Where Your Bulky SKUs Go Now

If you sell anything bulky on Amazon, your storage math changed this summer. The new Amazon AWD size limits took effect on July 31, 2026, and they draw a hard line: any product larger than 18 x 14 x 8 inches, or heavier than 20 pounds, can no longer be sent to Amazon Warehousing and Distribution. That includes a lot of ordinary products: cookware sets, small appliances, fitness gear, car parts, bins of pet food.

Amazon has not published a long explanation, but the effect is simple. AWD was the cheap upstream storage tank that fed FBA automatically. For bulky SKUs, that tank is now closed to new inventory. Sellers are already comparing notes on the change.

What is Amazon AWD?

Amazon Warehousing and Distribution is Amazon's upstream bulk storage service. Sellers send pallets or cases to an AWD facility, pay lower storage rates than FBA, and Amazon automatically replenishes FBA fulfillment centers as stock sells down. It has been the standard answer to FBA capacity limits and high FBA storage fees, especially going into Q4.

What exactly changed: the new AWD size limits

Three specifics matter for anyone auditing their catalog against the new Amazon AWD size limits:

The cap applies to the sellable unit, not the shipping carton. Amazon measures the individual unit in its retail packaging. If one unit exceeds 18 x 14 x 8 inches or 20 pounds, it is out, no matter how it is cartoned.

Existing oversize inventory is grandfathered. Stock already sitting in AWD keeps replenishing FBA until it is depleted, and shipments created before July 31 are still accepted even if they arrive later. You cannot create new oversize shipments.

This is US AWD only. Amazon Global Warehousing and Distribution (GWD) is not affected, and FBA itself still accepts oversize products. What you lost is the low-cost storage layer in front of FBA.

Why this squeezes bulky-SKU sellers right now

Without AWD, your default option is sending everything directly to FBA. For oversize items that means paying FBA storage rates on slow-turning bulky inventory, watching capacity limits, and eating aged-inventory surcharges if a SKU stalls.

The timing makes it worse. Tariff frontloading pulled imports forward this year, so inventory landed early and warehouse space is filling up months before the usual Q4 crunch. Waiting until October to find space for your bulky SKUs is a plan built on hope.

Your three options now

1. Send direct to FBA in small, frequent batches. Workable if your bulky SKUs turn fast and you have tight forecasting. You carry the risk: one slow month and you are paying premium storage on a pallet of oversized goods inside FBA.

2. Use a 3PL as your upstream storage layer. This recreates what AWD did for you: reserve inventory sits in lower-cost pallet storage, and the 3PL replenishes FBA on your cadence. A warehouse set up for large and oversized fulfillment can rack, case-pick, and prep bulky SKUs that regular ecommerce warehouses turn away. If you mostly need a place to put early-landed inventory until Q4, that is overflow warehousing.

3. Move your oversize catalog to FBM. For the biggest, slowest SKUs, fulfilling from a 3PL instead of FBA is often cheaper than any FBA path, and the new AWD rule tips the math further. See our FBA vs FBM guide for how to run that comparison.

How to move your bulky SKUs out of the AWD pipeline

Audit your catalog. Flag every SKU whose sellable unit exceeds 18 x 14 x 8 inches on any dimension or weighs 20 pounds or more, retail packaging included.

Let grandfathered stock draw down. Inventory already in AWD keeps feeding FBA. Do not disrupt it, just stop planning new oversize shipments into AWD.

Line up reserve storage before Q4. Space is tightening early this year. Lock in pallet storage near your ports or your FBA destinations now.

Set a replenishment cadence. Decide how often your 3PL sends inventory into FBA and what stock level triggers it, so FBA holds weeks of supply instead of months.

Re-run the FBA vs FBM math on your slowest movers. If a bulky SKU turns less than once a quarter, FBM from a 3PL probably wins.