Description All poly feed bunks are roto-molded with extra thick, FDA-approved, food-grade polyethylene that is easy to clean and corrosion free and also feature ribbed, double-wall construction. The deep, rounded feed troughs and drain openings help prevent spoiling of feed and are tested to -20ÂF. The pluggable drain also allows these bunks to be used as water troughs.Width: 31? Height: 20" Length: 120" Weight: 110 lb