AL-1 Specifications (Dimensions in inches, weight in pounds) Width, overall 28 1/2 Length, overall, ladder erected 46 1/4 Length, top section folded down 66 1/4 Height, overall, ladder erected 103 Work tray fully extended 136 1/2 Height with top section folded down 79 Height, top step and standing platform 90 Average maximum eye level 160 Work tray size 12x23 1/2 Top shelf size 16 1/4 x 20 1/4 Bottom shelf 28 1/4 x 42 Clearance, bottom shelf (above tank) 31 1/2 Center frame to top shelf 29 3/4 Steps 4 3/4 x 17 Weight, truck, ballast tank empty 149 Weight, truck, ballast tank full 319 Shipping weight (estimated) 169 Load capacity, load at rest 500 List Price (Call for dealer information) Pricing (any shelf capable of bearing total load capacity) Material-satin-finish aluminum, 1/8" sheet and 3/4" IPS pipe. Casters-5", corner-mounted, 2 fixed, 2 swivel on ladder end. *51" with optional extension ttAdd 3 lbs. for optional shelf extension