Features heavy gauge aluminum Tool-Tra-Top®. 4 solid 1/4" aluminum rivet attach top to each front and back rail. Back-up aluminum plate reinforces all top connectors. Heavy-duty 1-1/4" inside aluminum spreader bars. 3-1/4" extra wide Traction-Tred® deeply serrated aluminum steps, knee-braced and triple riveted. Full set of extra-strength knee-braced rear horizontals spaced one per foot. Lower rails reinforced with attached black non-conductive fiberglass rail shields to resist abuse. Combination rail end shield and shoe with extruded rubber slip-resistant foot pad. Front rails 3-3/8"W. Flange 1-3/16"W. Rear Rails 2"W. Flange 1-7/8"W. Steps are 3-1/4"W. Top is 7-1/4"W x 14"L. Meets ANSI and OSHA Standards. FOB Shipping Point.