How To Make Floor Joist Cross Bracing

The usual procedure is to fasten only the top end of the cross bridging.

How to make floor joist cross bracing. The lumber should be the same depth as the joist. Cross bracing on i joists phil we did a project two years ago that involved solid bridging to remedy a bouncy floor. Working your way across the floor add the braces. Cross braces are typically constructed from wooden 1x4s although metal cross bracing ties are sometimes used as well.

Hammer your nails through the blocking and the joists. The joists were undersized for the span and set on 16 o c. For example if you have 2 8 joists make sure to use 2 8 lumber for the blocking. The bracing consists of two pieces of framing lumber.

The floor was very bouncy to the point that the homeowner was concerned about her. If it is wood it is nailed to the upper top of the side of the floor joist before the floor or sub floor is installed on the joists. Cross braces may be installed during the construction process or added to older homes and it involves nailing small wooden braces from the top of one floor joist to the bottom of the next joist and vice versa to form an x. When cross bridging is used wood or metal the upper portion of the bridge is nailed into the top of the floor joist if it is metal.

The architect designed the floor framing and the tji engineer approved the plan. Glue and screw a 2x4 6 to the bottom of each joist. Joists can be strengthened by installing diagonal cross bracing using one by four lumber or metal strips. Nails are started at each end before the cross bridging is placed between the joists.

End with 6d or 8d nails. Cross bridging is toenailed at each figure 1 26 wood cross bridging. It is installed as shown in figure 1 26. In effect it works just like an i joist.

The guys at the ceramic tile form wil swear that cross bracing does little to stiffen a floor. Cut the lumber to fit between the two joists. Pieces are usually precut on a radial arm saw.