If the living room is carpeted with thick pile, it might not be immediately apparent that your son would be able to use the floor's slope when he practices his skateboarding techniques. Inspectors don't check to make sure that rooms are square and floors are level -- because most of them just aren't. How unsquare and unlevel may mean the difference between lounging on your sofa and hanging on for dear life. Houses go up quickly these days, so don't expect the price of your home to be the determiner of quality workmanship. Grab a level (and a T square) and check for yourself.