6500 series extra heavy duty fiberglass platform step ladder. Meets or exceeds CSA Grade 1A, ANSI Type 1A. Extra heavy duty non-conductive “C” channel side rails in high visibility safety yellow. Large safe and comfortable standing platform, 14 x 18 inch. Wide 3 inch slip-resistant serrated aluminum steps for safe climbing. Inside spreader arms complete with “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.