This is designed to be mounted with a post vise on a beam (either welded or bolted). This is made from 1/4" plate and is quite heavy duty. We acquired this particular design from Uncle Buck's Forge. The flat on it is 6" across. It can easily be mounted on a 6-7" beam. At its widest point, it is approximately 13.5". It features 1" and 2" openings for hammers and tongs. (The last photo shows what it can look like when you mount it to a vise stand with your vise.)
