This is a sink I used in my darkroom and it served me very well. The wall thickness is 1.15 mm (0.0453"), so it is likely 20 gauge steel. I also build a wood frame to support the sink, which the buyer is more than welcome to have. The drain end of the frame puts the sink bottom at 37" above the floor and the other end of the frame puts the sink bottom at 39" above the floor.