My simple design features two-piece legs that are hinged in the middle. At its full height, the legs are firmly locked in position with barrel bolts. When a shorter table is needed, the top can be lifted off and the legs folded down (Figure 2).
The construction is simple and solid. I used 4x4s for the legs and 2x4s for the stretchers. The removable top is cut from 3/4″ plywood.
Have a nice weekend,