These things are fantastic. Did my first siding job ever with Certianteed concrete siding putting up 10 square to side a workshop. These worked perfectly and made the job easy. Worth their weight in gold. Very sturdy and strong, easily holding a 12' piece of siding. Wonderful!!!!Get more detail about PacTool International SA903 2-Piece Gecko Gauge Hardi Board Siding Gauges.
