Simpson Strong Tie ITS2.37/14 2-5/16-Inch by 14-Inch Top Flange I-Joist Hanger The Strong-Grip seat firmly secures I-joists with flange thickness from 1 1/8 in. to 1 1/2 in No joist nailing required for standard I-joist installation without web stiffeners Actual Joist Size: 2-5/16 in. x 14 in Made from 18 gauge steel Galvanized for extra corrosion resistance