The short answer
3PL pricing is usually a collection of operational fees rather than one universal per-order number. Receiving, storage, picking, packing, materials, shipping, returns, minimums, and special projects can all affect the total.
Common cost categories
A clear proposal names the unit behind each fee and explains when it applies.
- Inbound receiving by hour, pallet, carton, or unit
- Storage by pallet, shelf, bin, or cubic volume
- Base order and additional-item picks
- Packaging materials and branded inserts
- Carrier postage and related adjustments
- Returns, kitting, labeling, and project work
Build a representative month
Use recent order data to model a normal month. Include multi-item orders, common destinations, returns, subscription releases, promotions, and storage throughout the month. Repeat the exercise for a peak period.
- Keep volume and order mix identical across proposals
- Separate estimated postage from fulfillment labor
- Include minimums and technology fees
- Ask how pricing changes as the account grows
Cost is also operational
Error recovery, delayed communication, inflexible rules, or missing visibility can cost more than a small line-item difference. Compare the full relationship and operating model, not only the lowest modeled total.