One of the most reliable barricades on the market, the 8.5 Foot Heavy Duty Steel Barricade is made from marine grade, hot-dipped galvanized steel. At 8.5 feet long, these barricades will cover more ground than most other barricades on the market. The premium hot dipped galvanized coating and 16 gauge steel make it the ideal barricade for any weather condition. With its simple interlocking design.