Warehousing services are the storage and handling of your inventory by someone who runs the building: receiving your stock, putting it away in bins, on shelves or in pallet positions, keeping the counts straight, and releasing it when it is needed. For an online brand, the useful version includes fulfillment too: picking, packing and shipping each customer order from that stock, and taking returns back in.
That second half is where most of the confusion sits. Many companies that advertise warehousing services are pallet warehouses built for freight: a truckload in, a truckload out. They are good at that and will quote a low per-pallet rate, but they won't pick one candle out of a case and mail it to a customer in Ohio. If your orders are single parcels to consumers, you need a warehouse with fulfillment attached, which is what a third-party logistics provider (3PL) sells.
Four ways to get warehouse space
Option | Who does the work | How you pay | Fits when |
|---|---|---|---|
Your own space (a garage, a rented unit, a leased warehouse) | You and your staff | Rent, payroll, racking, software | Volume is low or you want full control |
Storage-only warehouse | Their staff receive and release pallets; nobody packs orders | Per pallet or per square foot, plus in/out handling | You move inventory in bulk to retailers or another facility |
On-demand warehousing | A marketplace places you in spare space in someone else's building, month to month | Per pallet per month, plus handling | Overflow, a seasonal surge, a temporary second location |
3PL that stores and fulfills | Their staff receive, store, pick, pack, ship and process returns | Monthly storage plus a per-order fee | You ship parcels to customers and want out of the packing |
Running your own space is the cheapest option right up until it isn't. Rent, racking and a part-time packer are fixed costs you carry whether you ship 200 orders or 2,000 in a month, and a launch or the holidays means finding people and square footage in a hurry. A 3PL charges for what you use, so the swing lands on their shared staff and floor instead of your lease. The trade is control: your customer's experience now depends on a partner's accuracy and speed, so the choice of partner matters more than the decision to outsource. Our in-house vs. 3PL comparison runs the numbers on that decision.
If what you need is somewhere to keep inventory you rarely touch, plain storage is a different product. Warehousing vs. storage explains where the line falls.
What a 3PL's warehousing service includes
Receiving. Inbound shipments are checked against your packing list or advance shipment notice, counted, and logged into inventory. Most providers publish receiving requirements (labeled cartons, standard pallets, a delivery booked ahead), and freight that doesn't meet them costs extra, so read that document before your first shipment.
Storage. Each SKU is put away in a location sized to it, a bin, a shelf or a pallet position, and the system records where it is. This is the line you pay for monthly, and the next section covers how it is billed.
Inventory tracking. Counts update as stock is received, picked and returned, and sync to your store so you don't oversell. Ask how often counts are reconciled and how discrepancies are reported to you.
Pick, pack and ship. When an order comes in, staff pull the items, pack them, print the label and hand the parcel to a carrier. The per-order fee covers this, and it is where accuracy and cutoff times matter most. How ecommerce fulfillment works walks through the whole sequence.
Returns. Returned items are inspected, restocked if sellable, and otherwise set aside or disposed of per your instructions. Some 3PLs give you a branded returns portal so the customer experience stays yours.
Reporting and integrations. The warehouse software is how you see stock and orders. A direct connection to Shopify, Amazon or whichever channels you sell on is what makes the whole arrangement run without manual work.
How warehouse storage is billed
Storage is the one line that keeps billing whether or not you sell anything, so the unit matters as much as the rate.
Per pallet. The industry default. In The Fulfillment Advisor's 2026 survey of 500 providers, 94% offer pallet pricing, at an average of $19.37 per pallet per month and a reported range of roughly $6 to $40. Good for case-pack inventory; wasteful if your whole catalog would fit on two shelves.
Per bin or shelf. Built for ecommerce catalogs with many small SKUs. About 40% of surveyed providers offer bin pricing, averaging $3.03 per bin per month. ShipBob's published US rates, for example, are $5 per bin, $10 per shelf and $40 per pallet per month.
Per cubic foot. Charged on the volume your inventory occupies, usually measured as a daily average. About 21% of surveyed providers bill this way (survey average $0.45 per cubic foot per month), and it is how Amazon FBA bills: the base monthly storage fee is $0.78 per cubic foot for standard-size items from January through September and $2.40 from October through December, for inventory that is not classified as dangerous goods, with a utilization surcharge added when you hold a lot of stock relative to what you sell. Cubic-foot billing tracks your actual volume closely, but it is the hardest unit to forecast from a spreadsheet.
Per square foot. Dedicated floor space, used for oversized goods or when you want a caged area of your own.
Simpl bills by storage type rather than by volume: $3 a month for a small bin, $5 for a large bin, $15 for a shelf and $40 for a pallet, all of it ambient storage. If your inventory occupies 20 small bins, 5 large bins, 2 shelves and 1 pallet, that month's storage is $60 + $25 + $30 + $40 = $155, billed separately from the per-order fee. The storage pricing answer has the detail.
Whatever the unit, ask three questions before you sign: is storage prorated or charged on the month's peak, does the rate change with inventory age, and what counts toward any monthly minimum. Among surveyed providers that set a minimum, the average was $752.08 per month, and providers differ on whether storage counts toward it.
What slow and seasonal stock costs to sit there
The storage line is easy to underestimate when the catalog has a long tail. A pallet of a slow seller at $19 a month is $228 a year before you count the cash tied up in it, and a seasonal line that lands in August and sells in December pays four months of storage on every unit, sold or not.
Some providers add an age penalty on top. In the same survey, 41% of warehouses charge long-term storage fees, using models that range from a fixed per-pallet charge to a rate increase after 180 days. Amazon is the clearest published example: FBA's aged inventory surcharge applies to units that have been in its network for 181 days or longer, on top of the monthly storage fee. For most categories it starts at $0.50 per cubic foot at 181 to 210 days; clothing, shoes, bags, jewelry and watches are exempt until day 271. It rises to $7.90 per cubic foot or $0.35 per unit, whichever is greater, once inventory passes 455 days.
Three habits keep that bill small. Send in what you expect to sell in a quarter or two rather than a year. Keep slow SKUs in the smallest storage unit the provider offers instead of a pallet position. And ask for an inventory-age report so you can mark down or pull stock before it crosses whatever threshold applies. If you sell on Amazon, holding reserve stock at a 3PL and sending it in as prepped FBA shipments in smaller batches is one way to keep FBA inventory young.
How to compare warehousing providers
Location. Where the building sits sets transit time and postage to your customers. Ask for ground transit days from the facility to the regions where most of your orders go.
What the per-order rate includes. Some quotes bundle picks, packing, packaging and postage; others bill each separately and add postage at the 3PL's negotiated rate, sometimes with a markup. Convert every quote to a cost per shipped order for your typical order before you compare. Our 3PL pricing guide breaks down the fee categories.
Storage unit and minimums. Covered above. Send your SKU list and have each provider price it under its own model instead of comparing headline rates.
Receiving terms. Get the receiving requirements in writing, along with what non-compliant freight costs.
Visibility and integration. Live inventory counts, order status and a native connection to your store platform. A provider that needs spreadsheets to keep your store in sync will cost you hours every week.
Contract and exit. Expect a term and a notice period; read both before you sign, and ask how inventory is released if you leave.
For the longer checklist, see how to choose a 3PL. If you are mainly trying to understand what a fulfillment-focused warehouse is, what a fulfillment center is covers that.
How Simpl handles warehousing
Simpl Fulfillment stores and ships from one warehouse in Austin, Texas. All storage is ambient and billed by the storage types above. Fulfillment is a flat rate per order starting at $7, which includes up to 3 picks, packing, packaging and postage; carrier surcharges, when they apply, are billed per our terms. Receiving is free for every client, with inbound freight that doesn't meet our receiving requirements billed at $45 per person-hour under our terms of service. Orders received before 12pm CT ship the same day, order accuracy runs 99.99% with any error corrected at Simpl's cost, including return shipping and re-fulfillment, and every client gets a branded returns portal. Connect Shopify, Amazon, WooCommerce, Walmart, eBay, Etsy, and TikTok Shop. Need something custom? Ask us about API integrations.
Standard ecommerce fulfillment accounts have a $750 monthly minimum, billed pay-the-difference: if a month's order billing comes in under $750, we bill the shortfall so order billing reaches $750; storage is billed separately. The minimum works out to roughly 90 to 100 orders a month for light packages on standard shipping; heavier, larger or faster shipments reach it with fewer orders. If you are shipping well under that, packing orders yourself a while longer is often the cheaper call.
See what is included on the ecommerce fulfillment page, check the pricing page for how the per-order rate works, or get started and ask us to confirm which storage types your inventory would use before you ship it in.