Wayfair Seller Tools — Free Calculators
Free, no-login calculators built for Wayfair suppliers — the full CastleGate cost stack in one place.
Wayfair CastleGate Fee Calculator
Free CastleGate fee calculator: unload, positioning, storage curve and fulfillment by size class for Wayfair suppliers.
Open tool ↗Wayfair China to US Landed Cost
FOB + freight on volumetric weight + Section 301 duty + port fees + distribution mode — true landed cost per unit.
Open tool ↗Wayfair Margin Scenario
Wholesale price vs landed cost + CastleGate + promotion + deductions — net per unit, break-even price and price sensitivity.
Open tool ↗Wayfair Deduction Tracker
Log every return/damage/chargeback line, accepted vs disputed totals, and project annual returns + deduction cost.
Open tool ↗All tools open in a new tab. Reference rates are editable and clearly marked — replace with the latest official Wayfair figures before relying on them.
Wayfair supplier costs in 2026 — the full breakdown
Wayfair is a supplier model — no referral commission, you set a wholesale price and Wayfair prices retail. The real cost is what it takes to land and store goods, mostly through CastleGate.
Cost snapshot
| Cost | 2026 rate | Notes |
|---|---|---|
| Commission | none | supplier model — wholesale price is your only revenue line |
| CastleGate unload + fulfillment | $0.02 + $0.26 to $4.96 + $12.00 | per carton, by size class (Bin to Heavy 250–800 lb) |
| Positioning fee | $0 to $1.19 / cu ft | $0 for Asia Logistics; Wayfair-Chosen $0.59/$0.22, Supplier-Chosen $1.19/$0.59 |
| Storage | $0.75 to $4.20 / cu ft / mo | 90 days free, then $0.44/$0.70/$1.05/$1.40/$4.20 by dwell |
| Multichannel pick & ship | $17.05 first lb + $0.20/lb | volume discounts at 10k/20k units |
What the numbers mean for a supplier
The per-carton unload and fulfillment fees are set by size class, so a 48×30×30 carton at 40 lb lands in Oversize, not Large-Heavy. Storage is billed daily and the dwell tier you land in changes the number more than any other input. The CastleGate fee calculator walks the whole stack to a per-carton total.
Where each number gets calculated
- CastleGate fee calculator — unload + positioning + storage + fulfillment
- China to US landed cost — FOB + freight + duty + port fees
- Margin scenario — break-even wholesale price and price sensitivity
What Wayfair sellers need to track
Free calculators that surface each real cost of selling on Wayfair before it eats your margin.
CastleGate is a cost stack, not a line item
Wayfair's supplier model has no referral fee — the real costs are CastleGate's unload, positioning, storage curve and fulfillment by size class. Classify your carton and get the true per-unit cost before you set a wholesale price.
Route and dwell decide the number
Asia Logistics inbound removes the positioning fee (plus a $0.09/cu ft Document Credit), and 90-day free storage rewards fast movers. Run your carton at different dwell windows to find the break-even point.
Wayfair Seller Tools — FAQ
Are these official Wayfair calculators?
Why does Wayfair need a separate calculator?
Do the rates update automatically?
Is my data sent anywhere?
Sources & methodology
How this calculator was built and where the reference figures come from.
Last verified: August 2026 · Confidence: High
Primary source: Wayfair CastleGate rate card (SRC/TOS, effective 2026-07-01)
Reference rates are editable and drawn from public policy reports; confirm the exact figures with your Wayfair seller agreement and the relevant authority before relying on them.