In some instance walls are constructed without additional bracing, using plywood or OSB sheathing at the corners to brace and square the wall section. And in some cases the sheathing is applied to the wall frame before erecting the wall. In either case the wall section is first squared by measuring diagonally from corner to corner, then from opposite corner to corner and shifting the wall section to create an equal measurement and a squared wall. A large wooden 90-degree triangle can also be used. A temporary brace is then installed to hold the wall square.
In many instances hurricane bracing is added to the walls. This consists of purchases metal strips or 1x4’s set diagonally across the wall and cut into the outside edges of the 2x4’s. With sole plate and top plate nailed into the studs, again use a tape measure to measure diagonally from corner to corner and square up the wall. Temporarily tack the furring bracing in place and mark the cut locations. Use a saw to cut the notches, and then remove material between the saw marks with a chisel. Anchor the bracing in place with two 8d nails at each stud, and then cut the ends of the bracing off flush with the plate edges.
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