description 4 ft. type iaa fiberglass stepladder the werner®4 foot type iaa fiberglass step ladder is ideal for professionals who value safety and efficiency. it's duty rated for 375 pounds to support tools and equipment. the holstertop and its lock-in system keep tools in place while working for easy access. the steps of the werner step ladder feature slip-resistant traction-tred® technology, and are double riveted, and knee braced for high stability. it comes with a complete set of rear horizontals and internal heavy-duty spreaders for versatility. four rivets secure the top to each front rail of the heavy duty step ladder, and the top hinge has a shoulder bolt and nut. the edge® system minimizes damage to the rail, and the foot pads of the steps are connected to this system with rivets. this 4-foot step ladder is ansi and osha approved. california proposition 65 warning. features holstertop lock-in system prevents tools from falling off ladder heavy-duty step ladder has a 375-pound duty rating traction-tred steps are knee braced, double riveted, and slip-resistant complete set of rear horizontals internal heavy-duty spreaders four rivets secure top to front rails shoulder bolt and nut on top hinge edge system protects rails from damage werner four foot type iaa fiberglass step ladder meets ansi and osha standards specifications acme tools brand name werner acme tools part number 6304w ansi approved yes ansi ladder rating type iaa assembled weight (lbs) 16.0 base spread (in) 29.0 base width (in) 19.88 california proposition 65 warning required yes country of origin united states distance between rung/steps (in) 12.0 duty rating (lbs) 375.0 globaltradeitemnumber (gtin) 00051751033038 internal supplier part # 6304 internet product code (ipc) efa6af160ba ladder length (ft) 4.0 ladder material fiberglass ladder type step manufacturer warranty na meets ansi or osha standards yes number of steps 3 osha approved yes package weight 16.0 package weight (lbs) 16 rung/step depth (in) 3.0 step color aluminum upc 051751033038 weight (lbs) 16.0