The 8 tread industrial swingback step is constructed from heavy duty channel section stiles with riveted treads this no nonsense aluminium platform step is a simple yet reliable performer for daily use in harsh environments closed height m 212 open height m 195 rungstreads 8 material aluminium usage type heavy duty warranty 5 year standard bs 2037 class 1 platform height m 195 open depth m 139 weight kg 8 please note number of treads includes the top platform