Ideal wherever there is a need to reach bulky materials Rolls easily into position and locks firmly to the floor for maximum safety 2 to 6 step ladders operate on spring-loaded casters Casters retract under operator's weight, rubber feet drop down Non-clogging slip-resistant steel steps Frame is rugged welded 1" round steel tubing Durable Kleton blue polyurethane finish Weight capacity tested to 4:1 Safety Factor on all steps and full structure CSA certified to the ANSI standard A14.7 ; Note: Ladders are not to be used as work platforms. CSA certified to ANSI-ASC A14.7-2011 American National Standard for Mobile Ladder Stands and Mobile Ladder Stand Platforms Capacity 300 lbs. Certification(s) CSA certified to the ANSI standard A14.7 Frame Material Steel Manufacturer's Warranty 1 Year Limited Platform Depth 16" Step Size 22" W x 8" D Step Type Perforated Step Width 22" Top Step Size 22" W x 16" D