What Storage Information Does a 3PL Need to Quote Accurately?
An accurate 3PL storage quote starts with more than an average pallet count. Use this practical SKU, carton and inventory-profile checklist.
The short answer: a 3PL can quote storage accurately only when it knows what is being stored, how it arrives, how inventory changes through the month, and which units must remain separately identifiable. A single “average pallet count” is rarely enough.
Storage is one component of fulfillment pricing, but it can be distorted by incomplete inputs. A brand may say it holds 40 pallets while omitting that half of those pallets are broken down into hundreds of pick faces, that five SKUs require lot control, or that inventory doubles before peak. The provider then has to price uncertainty into the quote—or revise the estimate after onboarding.
Describe inventory in the units the warehouse will handle
Start with the physical form of each SKU. For every active SKU, provide the master-carton dimensions and weight, units per carton, pallet configuration if applicable, and the sellable-unit dimensions and weight. Identify items that cannot be stacked, overhang a standard pallet, contain liquids, require special handling, or need temperature conditions beyond ordinary ambient storage.
The distinction between reserve storage and forward picking matters. Reserve stock may stay on a pallet until replenishment is needed. Forward stock may occupy a bin, shelf or case location close to the packing area. A catalogue with many slow-moving SKUs can consume more locations than a smaller catalogue with the same unit count.
| Input | What to provide | Why the 3PL needs it |
|---|---|---|
| SKU dimensions | Sellable unit and master carton | Determines cube, slot type and handling |
| Case pack | Units per carton and cartons per pallet | Connects unit forecasts to physical storage |
| Inventory profile | Average, peak and month-end units by SKU | Shows normal and surge capacity |
| Control requirements | Lot, expiry, serial or status segregation | May require separate locations and records |
| Inbound form | Floor-loaded, palletized or mixed-SKU cartons | Affects receiving and putaway work |
Use a monthly inventory curve, not one snapshot
An average can hide the period that drives capacity. Give the provider at least 12 months of month-end inventory by SKU, or a forward forecast if the business is new. Mark product launches, seasonal builds, subscription drops, wholesale allocations and expected clearance periods. If inventory normally ranges from 18 to 35 pallets but reaches 70 before the holidays, the quote should make clear how the peak is handled and priced.
Also separate sellable, damaged, quarantined, return-pending and marketing inventory. Inventory control is not merely a total on-hand number; the warehouse may need to preserve different statuses so unsuitable units are not released to customers.
A worked storage-profile example
Hypothetical example in Canadian dollars; this is not a 247 Fulfillment rate card.
A skincare brand reports 24 pallets on average. A closer inventory file shows 12 full reserve pallets, 900 units spread across 60 active pick faces, four pallets of returned or quarantined goods, and a peak of 48 reserve pallets for eight weeks.
Suppose a hypothetical provider charges CAD $24 per reserve pallet per month, CAD $3 per pick location per month and CAD $30 per segregated pallet per month. A normal-month illustration would be:
- 12 reserve pallets × CAD $24 = CAD $288
- 60 pick locations × CAD $3 = CAD $180
- 4 segregated pallets × CAD $30 = CAD $120
- Illustrative normal-month storage: CAD $588
During the eight-week build, 36 additional reserve pallets would add CAD $864 per month under the same hypothetical assumptions. That changes the budgeting conversation materially. The recommendation would also change if the provider stores all inventory by pallet position, includes pick-face space in another fee, or bills by cubic foot. Compare the charging unit, not just the rate beside it.
Questions to ask about the storage method
- What is the billing unit? Pallet, bin, shelf, location, cubic foot, square foot or another measure?
- How is partial occupancy rounded? A half-full pallet position may still be one billable position.
- When is inventory measured? Daily average, weekly snapshot, month-end count or maximum occupied space?
- Are pick faces billed separately? If so, how many can one SKU require?
- How are peak and overflow periods handled? Ask about lead time, temporary space and rate changes.
- What triggers re-slotting or storage-class changes? New packaging dimensions can alter the answer.
Build a quote-ready storage worksheet
For each SKU, create columns for unit dimensions and weight, master-carton dimensions and weight, case pack, pallet pattern, average units, peak units, monthly velocity, control requirement and stackability. Add a second tab with projected inbound dates and total pallet or carton counts. Reconcile units to cartons and pallets; unexplained differences are exactly what create surprises during receiving.
Pair the storage file with the order profile used in your broader 3PL quote comparison. Storage cannot be optimized independently of picking: a low-rate remote location may increase replenishment touches, while more forward locations may reduce travel but use more accessible space.
What evidence should a provider return?
A useful proposal should state its assumptions: estimated pallet positions or pick locations, normal and peak footprint, included inventory statuses, billing cadence, and exclusions. Ask the provider to show how the estimate changes when inventory rises 25% or when the active SKU count doubles. That sensitivity test is more informative than a single neat total.
If a provider cannot explain how your inventory file becomes billable storage, the quote is not yet decision-ready. 247 Fulfillment can review a SKU and inventory profile as part of a fulfillment quote; sending the physical and seasonal data above will make that conversation faster and more useful.
