Adding Cross Bracing To Floor Joists

The difference is that the cross bracing uses two pieces of support in a diagonal shape that creates an x between the joists instead of a solid block in blocking.

Adding cross bracing to floor joists.

Cut a piece of 2 by 6 or 2 by 8 lumber according to the width. Because of this x shape one brace will be forced upon and under tension while the other brace will be compressed. 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 bracing and solid blocking.

Measure the width between the span of two joists. Bridging or x bracing allows joists to share weight. By the diy experts of the family handyman magazine nail bridging on all joists. As a footstep falls on one joist some of the force is transferred to neighboring joists.

Nail the block in place with 16d. A floor that bounces as you walk across it may just need to be stiffened with bridging which spreads the load on each joist to adjoining joists strengthening the whole floor. Residential building code requires the use of cross bracing or blocking for floor joists exceeding 2 inches by 12 inches but many homes especially older ones have creaky uneven floors because. This can allow for floors to be sturdier and more stable.

Bracing will stiffen a floor system prevent floor joists from twisting and increase overall stability. Continue reading below our video of the day. Place the lumber block between the two joists.