What Is Floor Joist Blocking

So one of the last things that need to be done before sheathing the deck is to fill in with blocking.

What is floor joist blocking.

To carry load bearing walls that stack above walls or beams. Blocking when talking about floor joists is when short wood blocks are used to fill or reinforce floor joists under floors that have a space below them. Limiting joist movement also helps prevent gapping between deck boards for a uniform finish. Floor joist blocking when an improperly designed floor joist is loaded it tries to take the path of least resistance which is to twist to the side.

Engineered i joists can span long distances to make a flat and solid subfloor. Blocking your deck joists blocks cut from the same material as your joists should be installed at regular intervals perpendicular to the length of the joists. Prolong the health of your framing with joist tape. They help to stiffen the deck s frame and prevent joists from moving or twisting as the lumber expands and contracts.

Joist blocking blocking provides the floor joists with lateral support and it provides a way to transfer shear and vertical loads from the walls above to the foundation below. Two common reasons for squash blocks are. Squash blocks do not provide lateral support. Tying the joists together with blocking makes the floor even stronger and stiffer.

Solid wood blocking helps reduce up or down movement and the twisting of joists. Making professional blocks to make the blocks i cut sections of i joist 1 inches smaller than the space between the joists.