The one my buddy has at the garage has a sawed out spot in the floor on each side. The cement goes down 4'X 3' with rebar every 1' sq down the 4' piece it has cables too. I have saw way to many cables break in food production for me to feel safe under one with cable even though they have locks. Man I have to agree with Denny what in the world you guys lifting up that weights 6 or 7 ton!
62Blue
Don
