21 deep top step, with handrail. Lock has spring loaded casters that retract when stepping on ladder; rubber feet grip floor. Ladder rolls freely after you step off.HEIGHT INCHES TO TOP STEP. HEIGHT TO TOP STEP/PLATFORM RANGE. Grip 16W 7 Step Steel Rolling Ladder 21D Top Step With Handrails" is in sale since Saturday, March 31, 2018. This item is in the category "Business & Industrial\Material Handling\Ladders, Scaffolding & Platforms\Rolling Ladders & Scaffolds". The seller is "y2-supply2013" and is located in USA. This item can be shipped to United States.