The following lines were added (+) and removed (-):
* Mark the centerline of the new wall across the ceiling. At each end of the line, measure and mark half the width of the new wall's top plate in one direction. Snap a chalk line between these marks. Plan one stud at each end and, from the end that meets a wall, measure 151/4 inches to locate the inside edge of the first intermediate stud, then 16 inches to the same edge of each additional stud.* Mark the centerline of the new wall across the ceiling. At each end of the line, measure and mark half the width of the new wall's top plate in one direction. Snap a chalk line between these marks. Plan one stud at each end and, from the end that meets a wall, measure 151/4 inches to locate the inside edge of the first intermediate stud, then 16 inches to the same edge of each additional stud ([[16-inch stud spacing standard]]).