Constructed of non-conductive, hi-viz yellow “C” channel side rails, and 3" wide slip-resistant serrated aluminum steps for safe climbing. Inside spreader arms feature “wrap-around” sleeves that strengthen spreader-to-rail connection and protect spreader arms during storage/loading/transit. Each step is reinforced with zinc-coated steel diagonal braces providing incredible strength and stiffness. Rear horizontal struts reinforced with zinc-coated steel diagonal braces offer maximum rigidity. Extra-large PVC rubber safety boots are heavy-duty and provide increased rail protection and slip-resistance. Large, comfortable standing platform measures 14" x 18". Meets or exceeds CSA Grade 1A, ANSI Type 1A.