Mine is a huge set up too. I have a sheet of 3/8" plywood under the sockets to screw the metal tracks to. I have at least 300 if not more in the one drawer and the big stuff is lined along the edges of both my boxes ( I have a duplicate at work) impacts are in the back along the edge to keep the weigh off the front of the slides. on a side note I had a Matco box drop a full width draw many years back under the weight of so many tools. took hours to round them all up, and the box was never the same.