I recommend against a wooden squat rack, for much the same reason that I recommend against a wooden car.
Opinions are like phasers - everybody ought to have one.
There is no substitute for milk. Sorry.
There are few things graven in stone, except that you have to squat or you're a pussy.
What we're trying to do is get things fixed, not allow them to stay broke.
Start training yourself. You don't have to have been an elite lifter to be a good coach - I sure as hell wasn't. But you have to at least have been under the bar enough to know why wedon't look up at the bleeding ceiling when we squat!