Dell wrote:
Hi Rob; I used two pieces of 1 1/2 angle iron tacked together for the base, then used some 18ga with 5/16 holes in the center with 1/4- 28 nuts tacked over he holes. I tacked the 18ga to the lags of the angle iron to line up with drain holes in bottom of the box. In the pictures you can see the 18ga bent and welded to the fixed end and the removable end that attaches with 2 1/4-28 bolts in the drilled and taped holes. I hope this help and not difficult to build. Dell