12' stall [solid] panel w/door12 Horse Stall Solid Front Panel w Door Modular Horse Stalls are affordable, easy to set up modular systems allowing for various row configurations. Made with heavy 14 gauge, 2 round tube framing. Each reversible stall front comes with a 4 left hand rolling door and 2 feed door. Panels and Fronts can be filled with customer supplied 2 lumber (includes instructions and chart on how to cut wood).