Audio rack

Hello I am looking into designing an audio rack for my equipment. I am not sure if it should be made all of wood, metal or a combination. I would like it to be about 50 inches tall and about 24 inches wide. This would be for a turntable, tube preamp, cd player, tuner, phono pre amp and some vinyl and cd storage at the bottom.I don't want it to resonate and I was looking into some spikes for coupling it to the floor. My tube mono blocks would have there own stands. Any thoughts or ideas? Jim