A pair of spaced-apart openings 132, 134 is formed in the planar member 130 in general alignment with the apertures 120, 122 in the horizontal part 116; the openings 132, 134 are configured to receive fastening elements, such as screws or nails therethrough such that the fastening elements extend through the second bracket member 114, through the first bracket member 112 and then attach the bracke