Use the 7' 9" starter panel to connect to either your For-most chute or For-most crowd tub. Then use For-most Corral panels and bows to complete your alley. Made of the same durable, quality material as all the For-Most corral panels, this one is 5 1/2 ft tall. 14ga 1 1/2" square tubing outer frame with 13ga 1 1/2" round tube horizontals. These may out last your chute!