Fulfillment center pricing often feels opaque—you'll see a base storage fee, then get hit with picking charges, packing surcharges, and dimensional weight penalties you didn't anticipate. Understanding what's actually included in a fulfillment quote is critical before you commit to a provider, especially as your order volume scales. This guide breaks down the cost components you'll actually encounter and how to compare apples-to-apples across providers.
Storage Fees: The Monthly Baseline
Most fulfillment centers charge a monthly storage fee based on cubic footage or pallet position. Typical rates range from $8–$20 per cubic foot per month for general merchandise, though home goods and bulkier items often land at the higher end of that range.
Here's what matters: rates usually drop at volume thresholds. A center storing 500 cubic feet might charge $15/cu ft, but jump to 2,000 cu ft and you might negotiate down to $12/cu ft. Ask whether storage is metered daily (more common and fairer) or if you're charged for peak usage that month—that distinction affects seasonal inventory costs significantly.
Pick and Pack Charges: Where Costs Add Up
This is where single-unit orders get expensive. Pick-and-pack fees typically run $0.50–$2.00 per order, depending on order complexity and the center's location. A simple single-SKU order might be $0.75, while a multi-SKU order picking 5 different items could be $1.50 or higher.
Some centers bundle pick-and-pack into a flat rate; others separate picking from packing. Separating can be cheaper for bulk orders but more expensive for small shipments. Get the breakdown in writing—don't assume bundle pricing applies to all order types.
Dimensional Weight and Oversize Surcharges
If your products are bulky relative to weight, you'll pay dimensional weight fees. Centers calculate dimensional weight by dividing length × width × height by a divisor (typically 166–220 cubic inches per pound). If dimensional weight exceeds actual weight, you pay for the larger number.
Oversize items—anything larger than 18" × 14" × 8" or heavier than 70 lbs—often incur a flat surcharge of $1–$5 per unit in addition to dimensional weight charges. Home goods and furniture sellers get hit hardest here. Ask your provider what their divisor is and whether oversize surcharges apply to your product category.
Shipping Label and Carrier Fees
Some providers print shipping labels free; others charge $0.05–$0.15 per label. That adds up with high order volume. A few centers also apply a per-shipment carrier fee ($0.25–$1.00) when they hand off to FedEx, UPS, or USPS.
Clarify whether they're negotiating carrier rates on your behalf. Major fulfillment centers often qualify for better shipping discounts than you'd get directly, which can offset their base fees.
Returns Processing and Inbound Freight
Returns handling typically costs $1.50–$4.00 per return, covering receiving, inspection, and restocking. Inbound freight charges vary widely: some centers waive them for palletized shipments, others charge $0.10–$0.25 per unit to receive and put away inventory.
If you're sending in frequent small shipments, inbound fees can surprise you. Negotiate a flat rate for regular shipments if you know your volume pattern.
Hidden Fees to Watch For
- Hazmat or restricted items: flammable goods, batteries, or electronics may incur special handling fees ($2–$10+ per unit)
- Long-term storage surcharges: inventory sitting untouched for 6+ months often triggers extra fees ($0.05–$0.30/cu ft/month)
- Inventory shrink allowances: some contracts pass loss to you above a stated threshold
- Integration or API access: some centers charge $50–$500/month for tech connectivity
Request an itemized rate sheet that spells out all fees and thresholds.
Comparing Across Providers
Use a tiered cost model: calculate costs at your current monthly order volume, then at 50% and 200% growth. Plug in your average items per order, package dimensions, and monthly inventory size. When comparing quotes, ensure each provider is using identical assumptions about your product specs.
Tools like Mercoly help you compare multiple fulfillment center quotes and verified provider details side by side, cutting the legwork of sourcing and vetting.
Frequently Asked Questions
Q: Are monthly storage fees negotiable? Yes—most centers offer volume discounts or tiered pricing starting at 1,000–2,000 cubic feet. Lock in rates in writing and confirm whether they adjust if you dip below minimums.
Q: What's the real cost difference between a $1 and $2 pick-and-pack fee? At 5,000 orders monthly, that's a $5,000 difference. Request a detailed order breakdown from your current fulfillment data to model actual costs before signing.
Q: Do fulfillment centers refund overage fees if I pick up inventory early? Rarely for monthly storage, but some centers credit inbound fees if you remove inventory mid-month. Always ask upfront.
Compare quotes from multiple providers on Mercoly to find the best fit for your specific product type and order patterns.