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Ecommerce Warehouse
Three names for one building, and only one of them appears on your invoice
An ecommerce warehouse stores goods that leave as individual consumer orders. A fulfilment centre stores goods and also performs the picking, packing and carrier handover. A distribution centre receives bulk and re-ships bulk — to stores or to other warehouses — and never touches a parcel label. In conversation the three are interchangeable. On a contract they are not, and the confusion is expensive in one specific direction: a seller who needs order-level execution signs a storage agreement, then finds every pick, carton and label priced as an extra.
So the first question is not how big the ecommerce warehouse is, but which of the three jobs you are buying. Goods moving to consumers one parcel at a time means you are buying execution, and storage is a by-product. Goods moving to a retailer by the pallet means you are buying storage and handling, and the parcel infrastructure is irrelevant.
How space is billed, and why the unit beats the number
Two quotes can show the same monthly figure and differ threefold once your real stock profile is applied. The unit of measurement does the damage.
| Billing unit | Suited to | The trap |
|---|---|---|
| Pallet position | Homogeneous, palletised, slow-moving stock | A half-empty pallet bills as a full one, so low-density goods pay for air |
| Bin or shelf location | Small, light, fast-moving SKUs picked piece by piece | Bin counts look cheap until a seasonal SKU needs three and the quote assumed one |
| Volumetric (m³ / CBM) | Mixed density, irregular cartons | Fair for light bulky goods, punishing for dense ones |
| Floor area (m²) | Oversized items, furniture, project cargo | Aisle space is often inside your square metre, so usable area is smaller than billed area |
Three mechanics decide more than the headline unit. Minimums: a floor charge makes a small account expensive per unit and is the most common first-year surprise. In-and-out versus storage-only: some operators bill receipt and dispatch handling separately from occupancy, others bundle it — the bundled quote looks cheaper until turnover is high. Tiered duration: charges stepping up after 30, 60 or 90 days are a policy statement about what the operator wants your stock to do; if your sell-through is slower than their assumption, you are subsidising their space plan.
Slotting is the decision that sets your pick time
Slotting means deciding where each SKU lives. It is the least visible operation in an ecommerce warehouse and the one with the largest effect on labour per order, because walking dominates picking time in almost every manual operation.
The standard approach ranks SKUs by pick frequency into velocity tiers and places the fastest tier where it is most accessible — waist to shoulder height, near the pack benches, at the front of the pick face. Two refinements separate a competent operation from a good one. Cube versus frequency: a fast mover that is physically large can cost more in travel than it saves, so tier assignment has to weigh both. Re-slotting cadence: a map built in January describes January's catalogue. Seasonal ranges, promotions and a sudden bestseller all invalidate it, and an operator who re-slots only when a location runs empty is working from last quarter's map.
Inventory accuracy is a practice, not a promise
Every provider says their accuracy is high. The revealing question is how they know, and there are few honest answers.
- Cycle counting — a slice of locations counted daily on rotation, weighted to fast movers and high-value SKUs. It yields a continuous figure and catches drift while it is still small.
- Wall-to-wall counting — everything counted once or twice a year behind an operation freeze. It gives a clean annual number and says nothing about March.
- Receipt variance handling — what happens when nine cartons arrive against a list of ten. If the variance is booked to your account instead of raised with the factory inside a defined window, you have funded somebody else's shortage.
- Adjustment trail — every correction carrying a reason code, timestamp and approver. Where stock can be adjusted silently there is no accuracy figure, only an opinion.
- Quarantine — damaged or suspect units separated physically and systemically from sellable stock, so a damaged unit becomes a claim rather than a customer complaint.
Peak capacity has to be reserved, not hoped for
The fourth quarter tests an ecommerce warehouse on space and hands at once. Space is the easier resource because it can be planned months ahead. Labour is harder: the people who pick accurately in November are usually the ones trained in August, so an operator recruiting only for peak is training them during your busiest week.
Three questions reveal whether a plan exists. When is your volume forecast needed, and what happens if you exceed it — a surge allocation, a waiting list, or a quiet re-prioritisation behind larger accounts? What is the cut-off after which promotional stock can no longer be received, slotted and made pickable in time? And what happens to inbound containers when port congestion or a blank sailing throws arrivals out by ten days, since goods landing after the cut-off do not become sellable merely by being on the premises?
Eight demonstrations worth demanding
- Price my actual SKU dimensions and volumes, not a rate card.
- What is the minimum monthly charge, and at what volume does my account stop paying it?
- How are receipt variances raised with my supplier, and within what window?
- Is counting cyclic or annual, and can I see last month's accuracy figure with its definition?
- How is accuracy defined — by location, SKU, unit or order? The four give different numbers from one operation.
- Where are damaged and returned units held, physically and in the system?
- What is the daily dispatch cut-off in a stated time zone, and what proportion of pre-cut-off orders actually left that day?
- Which filings and how many years of operation stand behind the answers?
What that looks like on our side
FulfillDock by SBT runs three linked cloud warehouses in Shenzhen, Suzhou and Dongguan — 3,000 m², 13,000 m² and 8,000 m², totalling 24,000 m² — sited for the manufacturing clusters and ports of South China and the Yangtze Delta, with more than twenty domestic receiving points behind them. Orders placed before the 16:00 China-time cut-off are picked, packed and handed over the same day with same-day tracking; there is no minimum order quantity, and the mis-pick and miss-ship rate runs below 0.01%, that figure counted per line, not per order. Delivery reaches more than fifty countries across fifty-plus shipping channels, with the channel chosen per order rather than per account. Exceptions carry a two-hour response and a twenty-four-hour resolution target under a named English-speaking account manager. The company was founded in 2011 and reports an 85% repeat-client rate.
Which end of the network should hold your stock is a different question from how a warehouse bills and counts, and it has its own page: Inventory Placement. If your orders leave as parcels rather than pallets, the piece-level operation is described in Ecommerce Fulfillment Services.
Frequently asked questions
What is an ecommerce warehouse?
A facility holding stock destined to leave as individual consumer orders rather than bulk shipments. It differs from conventional storage in layout and labour: piece-level pick faces rather than pallet racking alone, packing benches rather than one shipping door, and a systems layer connecting orders to locations one unit at a time.
How does an ecommerce warehouse differ from a fulfilment centre?
In scope. A warehouse may only store and release; a fulfilment centre stores, picks, packs, labels and hands over to carriers. The distinction is commercial, because storage and execution are billed separately — and an ecommerce fulfillment company quoting only occupancy has not yet told you what an order costs.
How do I compare two ecommerce warehouse quotes fairly?
Normalise them onto your own data first: real carton dimensions and weights, monthly receipt volume, average order lines, peak-to-average ratio. Then ask each provider to price that profile. Two quotes built on different density and turnover assumptions are not comparable, however similar the headline numbers look.
Can one warehouse serve both marketplace stock and my own website orders?
Usually, and that is the normal reason sellers consolidate. It requires labelling discipline — marketplace stock often needs its own identifier applied to a published specification — and system separation, so the same physical unit is not committed twice. Ask how the operator prevents an oversell across two channels drawing on one pool.
What should an ecommerce fulfillment company be able to show before I commit stock?
Four things: a counting method with a recent accuracy figure and its definition, a written receipt-variance procedure, a stated dispatch cut-off in a named time zone with last month's on-time proportion, and the regulatory filings and years of operation standing behind the contract. Anything else is a promise without a record.
