A speaker's wire plugs are generally red (positive) and black (negative). Red wires connect to red plugs, and black wires connect to black plugs. If a speaker's wires contain different colors, the wires should be matched to their plugs by their positive and negative symbols. Full Answer >.
Finding wall studs. Wall studs in modern homes are spaced 16 inches on center -- that is thedistance from the center of one wall stud to the center of the next is 16inches. In older homes, studs may be 24 inches apart, or spaced irregularly.
The center spacing determines how far apart your posts are set from each other on the sidewall. If the barn is to be built in area that typically receives snow, we highly recommend 10' foot center. A 12' foot center is desirable when you need to have wider openings or roll-up doors on the side of the structure. This is useful for structures that may be used for horse stables, or a car garage with side entry.