A 3PL warehouse is a building run by a third-party logistics operator that holds and ships stock the operator does not own, for a storage fee by the pallet or the bin and a handling fee by the receipt, the line or the order. Most of what is written about the model is written for the shipper choosing one; this page is written from the other side, for the person running the building, because what makes a 3PL warehouse work is not the contract but the five processes each client's stock passes through and how consistently they are followed. The US Census files the activity under NAICS 493110, general warehousing and storage, and the operator's day is receiving, putaway, picking, packing and returns, per client, every shift.
What the operator sells, and what the client is paying for
A 3PL sells space and handling. Space is storage, usually priced by the pallet position or the bin per month; handling is the work done to a client's stock, priced per receipt, per order, per line or per unit, sometimes with a monthly account fee on top. The client is paying for two things it cannot see from its own office: that the stock is where the system says it is, and that an order placed by noon leaves by the cut-off. Both are procedures before they are promises.
The five processes every client's stock passes through
Receiving checks a delivery against what the client said was coming; putaway moves it to a scanned location; picking pulls lines for orders along a pick path; packing turns picks into shipments to the client's spec; and returns take goods back and decide their disposition. Each is a procedure with the client's own variations, and a 3PL with three clients has three variants of each. The free worksheet on this site counts that pack and the training it takes before the first shift runs on it.
What a small 3PL gets wrong first
The usual failure is running client four on client one's procedures because nobody wrote client four's down. Labelling differs, lot control differs, packing specs differ, and the accuracy figure on the report is the first place it shows. Writing the pack per client, sizing the training, and keeping each SOP with a version and a review date is the operator's discipline that no software supplies on its own, and Pickpathly Pro is the record that keeps it.
Questions people ask about 3pl warehouse
What does 3PL stand for?
Third-party logistics: a company that handles storage, fulfilment and sometimes transport for another company's goods, as a service. The warehouse it runs holds stock it does not own, per client, and charges for space and handling.
How does a 3PL warehouse charge?
By space (a pallet position or a bin per month) and by handling (a fee per receipt, per order, per line or per unit), often with a monthly account fee. The rate card is the operator's; the figures the client checks it against, cost per order and accuracy, are what the worksheets on this site work from the operator's own totals.
What procedures does a 3PL warehouse need per client?
At least one for each of receiving, putaway, picking, packing and returns, with a variant wherever the client's labelling, lot control, packing spec or return rule differs. The warehouse SOP template worksheet sizes that pack and the training it takes; what each procedure says is the operator's own.