Vantech Sprinter 2002-06 HighTop H1 3 bar ladder roof rack 64" bars Steel A500 crossbars are made from 14-gauge steel, 2" X 1" rectangular bar. Max Load capacity of 1000 lbs. Galvanized mounting base and accessories for additional protection against rusting Clamps directly onto gutter rails for drill free installation Mounting bases are 10 gauge steel and 14 gauge cross bars System is powder coated for superior protection against rust and corrosion