16 gauge steel diameter with square, round, oval pipes Horse panels, or corral panels are made from heavy duty galvanized steel tubes, which are welded together by vertical e corral panels Features: Robust structure. Horse panels are made from heavy duty steel tubes. They are welded by 360 degree. The sturdy structure makes horse panels stable and not easy to break. Corrosion resistant and durable. The galvanized and painted coated surface make the panels anti-corrosion & rust and long service life. Easy assembly and disassembly. Horse panels are jointed with pin latches or chains. The j-legs and metal base enable horse panels to stand freely without the need to dig holes on ground or lay foundations. Safety guarantee. The panels are galvanized and polished without sharp edges. Thereby, the panels will not cause injury to your horses. Various shapes of tubes. Horse panels tubes are available in round tubes, square tubes and oval tubes with different