When you build a wall, the studs should be spaced equidistant from each other. Here's why the standard is 16 inches "on center", and an easy way to mark them. "16 inches on center" means the ...

Floor joists are the framing members that support the floor and walls above them. They run horizontally and are usually spaced 12, 16 or 24 inches on-center. They are supported by the foundation ...