Lay the top plate and bottom plate down edge up. Measure out a little more than 30 feet in between the plates.
Lay out the studs edge to edge until they equal 30 feet. This will require you to measure and cut the last stud.
Splice the studs together using another stud. Next, double up the studs you just laid out. Make sure that the breaks are at least four feet from another break in the studs; an easy way to do this is to lay the double studs down in the opposite direction of step two.
Nail the double studs together; the most efficient way to do this is by using a nail gun. Next, nail the bottom plate and top plate to your studs. Your studs should be spaced 16 inches on center when nailing to the plates. Then add the double top plate and nail it down.
Install the fire blocks spanning the entire wall; these blocks will be nailed in between the studs in a straight line. Make sure to go up about every eight feet when installing fire blocks. To ensure that the wall is square before you raise it, measure from corner to corner. After you have squared the wall, nail some diagonal braces to it to keep it square. Finally, raise the wall and brace it into place.