I've been familiar with gas, diesel, and electric forklifts since 1981.
45 years , 12 mfgrs., from 500 lbs. 8 ft high to 50 tons, 100 ft high loading,unloading, riggig, inventory, quality control, verification of materials, have handled all types of lumber, trusses, doors, windows, prefab panels, any materials required to expedite on time deliveries. Have also operated 2Brower cranes, 250 ft. And 450 ft, bobcats, backhoes, dozers, pole cranes for setting trusses on 3 to 6 story bldgs. Minder