METAL FRAMING, BACK TO BACK COMBINATION TYPE; ASTM A1011/A653 LOW CARBON STEEL MATERIAL; PRE-GALVANIZED FINISH; 120 INCH; 1-5/8 INCH; 1-5/8 INCH; SOLID CONFIGURATION; 16 GAUGE THICKNESS; COLD FORMED PROCESS; 2 CHANNEL(S); 1.564 INCH DEFLECTION