Legged Freestalls This Freestall becomes very strong with an all welded construction and a leg that is poured into the concrete floor. This unit has the plastic rust shield on the leg at the concrete line and 3 hole 1" x 2" heavy duty mounting channel. The main frame is 1 5/8" x 10 gauge triple coated galvanized high strength steel tubing with rust shield at concrete line and 20" solid shaft to help insure a long life for the fine Freestall.