Hey guys, I have a quick question about roughing in a drain for a tub in my basement. What dimension should the wood box i install in the floor around the 2" pipe (12 x 12" or 14 x 14"?), and what is the basic off stud detentions (how far in, roughly, should the drain be installed, from the base plates, from the long side and short side. I'm buying the tub from home depot and when i asked the sales rep for the detentions they told me they didnt know, but they do know that they are standard. Left side drain, although, I would guess that doesn't matter. My second question is, what is the point of the box? So there is some room to wiggle when installing the tub? I'd rather not buy the tub before im ready to install it if possible because i dont really have room to put it...