Prioritize 3PLs with direct access to arterial roads (A19/A1), nearby port and airport links, and proven parcel-carrier integrations. Evaluate dock capacity, trailer parks, cross-dock capabilities, and carrier pickup frequencies to ensure reliable lead times and lower last-mile costs.

Benchmark on landed cost-to-serve: storage rates per pallet/day, pick/pack labor rates, outbound carton handling, and inbound receiving. Factor local labor availability, fuel surcharges, and transit zones—northern locations often offer lower rents but review carrier transit premiums to key customer markets.

Require real-time inventory visibility, API connectivity for order flows, and performance SLAs for OTIF, pick accuracy, and order cycle time. Confirm support for barcode/RFID, batch/lot tracking, returns workflows, and EDI or RESTful integrations to minimize reconciliation and out-of-stocks.

Request zone-based transit matrices, sample carrier manifests, and carrier pickup schedules. Perform test shipments to representative postal codes, review access to national parcel networks and port/airport forwarding lanes, and analyze historical transit performance for peak and off-peak periods.