A great modular designed panel system. Each panel is framed using 1 1/2” U-channels the top portion uses 1/4’ wire mesh at 2”x 2” spacing. The bottom portion is designed to be filled with either vertical or horizontal board lumber. We recommend 2” x 6”tongue & grove pressure treated lumber installed vertically for strength. Each panel has our easy drop pin connectors attached on either end for quick set up. This exerciser as with most of our systems can use either a swinging gate or sliding gate system.