I bought a piece of 1/2" MDF I got it to hold my PJ on my ceiling (CRT approx 140lbs) It will be secured with MANY screws in 3 places. Along the short edge, 3 rows basically like beams accross the MDF with 2.5" screws. I am then going to bolt my pj mount to the MDF with 4 bolts, the 4 bolts will all be fairly close to the screwed edges. What do you "wood experts" think. They guy at home depot seemed like he knew what he was talking about, he said it should be no problem.