Wade - I ran into a similar problem this spring. I followed JM's instructions as indicated above. Worked great. All you need is a couple L brackets from Lowes, nuts, washers, and a "board" cut so size. I thought I would have some starboard left over from my amp rack but unf. I didn't. I went to Target and picked up one of these and cut to size: http://www.target.com/p/superboard-p...4x17/-/A-85899
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