description 20 ft. type ia aluminum extension ladder the 20-foot aluminum extension ladder from werner® is a reliable ladder that's ideal for industrial use. this heavy-duty extension ladder has a max extended height of 20-feet to take on a variety of field projects. it has a strong duty rating with a load capacity of 300 pounds. like all werner extension ladders, this features a patented alflo® rung-joint which prevents twisting of the ladder when fully extended and when being used as a catwalk. with the safety of traction-tred® d-rungs, you can enjoy secure footing with slip-resistant pads. the ladder extends smoothly with the use of spring-loaded rung locks and durable guide brackets aid to easily lock them in place. this two-section ladder can be separated into two individual ladders. you can use and store the werner extension ladder outside since it's made with weather-resistant material. it's osha-approved for the workplace. california proposition 65 warning. features maximum reach: 20-ft exclusive alflo rung joint means twist-proof performance 1-3/4-in slip-resistant traction-tred d-rungs heavy-duty extruded rung locks are spring loaded to operate smoothly base and fly separate easily for use as an extension or 2 single sections smooth operating pulley design, with the enclosed shape providing additional protection of the pulley guide brackets mounted at the top and bottom of the rail for durability and smooth operation of fly section extra heavy-duty i-beam rails rugged shoe rests flat or is held in spur position with shu-lok feature specifications acme tools brand name werner acme tools part number d1520-2 acme tools supplier bullet 1 in store pick up pricing may vary ansi approved yes ansi ladder rating type ia assembled weight (lbs) 37.0 base spread (in) 0.0 base width (in) 18.125 california proposition 65 warning required no country of origin mexico csa certified no duty rating (lbs) 300.0 globaltradeitemnumber (gtin) 00051751012323 internal supplier part # d1520-2 internet product code (ipc) fcc989b82c8 ladder length (ft) 20.0 ladder material aluminum ladder type extension manufacturer warranty na meets ansi or osha standards yes osha approved yes package depth 0.55 package height 10.0 package weight 37.0 package weight (lbs) 37 telescoping no upc 051751012323 weather resistance yes weather resistant yes