Evaluate yard and dock configuration, racked versus bulk storage, available cube and throughput capacity, carrier connectivity for your key lanes, and the 3PL's experience with your SKU profile. Verify peak handling capacity, pick accuracy targets, and formal SLAs for lead times and chargebacks.

Proximity to main highways, feeder services to coastal ports or airports, and a robust pool of regional carriers shorten transit windows and lower freight spend. Select warehouses with direct carrier integrations and consolidated routing options to reduce LTL costs and improve predictability.

Negotiate transparent line-item pricing for receiving, storage, and handling; index escalators tied to measurable cost drivers; clear minimums and volume tiers; and predefined peak-season rates or volume-flex clauses. Insist on audit rights and KPIs tied to billing adjustments.

Run a staged pilot covering integration, sample SKUs, and peak-day volumes. Track KPIs such as order-to-ship time, pick accuracy, inventory reconciliation variance, and chargeback incidence. Require sandbox API access, EDI or modern WMS integration tests, and a remediation plan for SLA breaches.