At the house I like to do most of mt GT work in the garage, but lately I have too much stuff with yo put away and have room to work also. So I picked up a couple Cookie sheets or Bread racks with casters on them. I cut plywood to fit the racks and I can slide the plywood in and out to make different height shelves. One has 16" X 24" shelves and the other is 18" X 24". I can almost put all the parts from a Gt I'm restoring on one of these units. I can also park these right against the fixed shelves on the walls and pull out of the way when I need to get to those shelves behind them.