Under general supervision performs routine loading and unloading of materials within yard or work site; assembles load packages into truck for delivery to customer job sites. Loads and unloads materials onto or from pallets, trucks or customer vehicles and installs strapping, bracing or padding to prevent shifting or damage in transit. Drives various lifting devices (e.g. forklift) to move products, equipment of materials around the warehouse, shop or yard. Performs load-building, determining the appropriate weight, composition, and placement of load based on customer order and capacity of delivery vehicle to ensure load is balanced and safe for hauling. Conveys materials to or from storage to designated area using hand truck, electric dolly, forklift or other devices. Attaches identifying tags or labels to materials or marks information on cases, bales or other containers so as to provide correct identification of items.