GOLD MINE METAL WORX Metal Signs and Art Our signs and Metal Art are cut using CNC plasma technology. Most of our signs are cut from 16 gauge or larger thickness steel depending on the size of the piece. Project Gallery Custom Benches Our custom benches are constructed of 2 inch 14 gauge square tubing for the frame and 10 gauge steel for the decorative backing. Project Gallery Metal combined with other Materials We have recently been combining Metal along with other materials to give another level of detail and design to our work. Project Gallery