6. To determine how long to cut your
studs, measure from floor to ceiling. Subtract 3 ½ inches (1 ½
inches each for top and bottom plates, and an extra ½ to allow
you to tip the wall) to get your final length.
7. Cut 7 studs of this length, and nail them to the top and bottom
plates (on the "Xs" that you marked earlier) using 2 12D nails
on each end.
8. Snap a chalk line on the ceiling and floor along the entire
length of the wall. Use a plumb bob to ensure the lines are even
(so you know your wall will be vertically level).
9. Raise your wall into place along the top and bottom chalk
lines.
10. Use 12D nails to secure the top of the wall to the joist
(or blocking). Use shims as necessary to fill the gaps.
11. Secure the bottom plate to your concrete floor using a ramset
or masonry screws. (Or you can use masonry nails and a big hammer!)
Your finished wall section should look like this:

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