located in the middle wall 88 of the channel member 82 to further secure the panel extension bracket 80 a carriage bolt 94 extends downward through the aperture 92 and the top member 28 of the base frame 20 a nut is attached to the threaded portion of the bolt 94 extending out a bottom surface 95 of the top member 28 of the base wall panel frame 20 the panel extension bracket 80 further includes a pair of spaced parallel side sections 96 extending upward from the channel member 82 the side sections 96 slope upwardly from the top member 28 of the base frame 20 to the extension member 100 thereby forming a substantially triangular shape a vertically extending flange 102 runs between the two side sections 96 thereby connecting the side surfaces 96 the flange 102 is connected to the front wall 104 of the extension member 100 the extension member 100 extends upward from the channel member 82 and directly above a side member of the base frame 20 the height of the frame member 100 may be adjusted to correspond with the height of an associated panel although 32 inches is the preferred height a vertically extending cavity 105 runs in the extension member 100 a j shaped channel 108 runs up a first side wall 110 of the extension member 100 the channel 108 is sized to mate with an adjacent extension panel thereby better securing the adjacent extension panel a front wall 112 and a back wall 114 of.