With all the web sites — OK, I’ve seen two — covering adjustable-height workbenches/tables using scissor jacks and torsion-box construction, it must mean a resurgence of something or other (height? adjustability? scissor jacks? torsion-boxes?). The Jack Bench, shown above and seen on LumberJocks, is a mobile-base, adjustable-height workbench that adjusts from 29″ to 43″ high. Designed by Charlie Kocourek, its telescoping legs are torsion boxes, and the bench is raised and lowered by an ordinary scissors jack. Standard ¾” pipe clamps lock the legs into one solid base unit at the desired height. A second scissors jack raises the bench off the floor and onto its mobile base, allowing the bench to be wheeled around. Charlie has detailed plans available on his web site for $29.95. He also has several videos showing the operation of the Jack Bench.
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