Rails prevent forklift and personnel mishaps. corrosion resistant, 10 gauge galvanized steel rails measure 12"h x 3-3/8"w and include visibility stripes. includes (2) brackets and hardware. requires 2 mounting posts (sold separately). constructed of 10 gauge galvanized steel. crash rating of 4,000 lbs. at 4mph. overall 50-23/32"w x 5-15/32"l x 12-13/16"h. choose the posts that meet your needs: spring posts flex to absorb impact. 18"h or 42"h posts mount rails permanently or allows rails to be uninstalled as needed (use with straight rails only). double rail posts hold 2 rails for added vertical protection. additional notes: crash rating applicable when railing is properly anchored. floor thickness/conditions may cause post failure (bolt pullout) before the rail fails.