just build it with 2x4's, prime it with kilz, and paint it.. should never rot...that layout is the best for stand building... dont need the center brace.... also build it to eye level when your are looking at the tank. build it too tall, cant see while sitting in a chair...or too short and you bend down to view it when standing.... also keep in mind the amount of room you have to do maintenance in the sump below. removing skimmer cup, cleaning.. etc... nothing worse than building a stand and realizing it should have been bigger....sucks!