Concrete, framing and equipment: On farms, building and repairing and remodeling of livestock buildings. Repairing and installing curtains, installation of feeders and feed lines, installation of gates. Tin sheeting walls, install doors, caulk structures, welding and cleaning of jobsite. Installation of equipment used to care for, treat, feed and raise livestock. Laying of forms, tying rebar, pouring concrete. Digging post holes. Unload and layout lumber and steel, erect walls and trusses.