The 10 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 257 open height m 237 rungstreads 10 material aluminium usage type heavy duty warranty 5 year standard bs 2037 class 1 platform height m 244 open depth m 166 weight kg 10 please note number of treads includes the top platform th