Strong spun-rung 7 tread platform step that is light & easy to handle. Ideal for offices & areas with restricted storage space. Closed Height (m) 2.2. Open Height (m) 2.2 Rungs/ Treads 7 Material Aluminium. Usage Type Medium Duty. Warranty 3-Year. Standard EN131. Platform Height (m) 1.42. Weight (kg) 6.5