What Is Floor Joist Blocking

Prolong the health of your framing with joist tape.

What is floor joist blocking.

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. Tying the joists together with blocking makes the floor even stronger and stiffer. Engineered i joists can span long distances to make a flat and solid subfloor. The wood used when blocking is usually made up of short defective pieces of wood that can t be used in other pieces of construction.

Two common reasons for squash blocks are. 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. Making professional blocks to make the blocks i cut sections of i joist 1 inches smaller than the space between the joists. Squash blocks do not provide lateral support.

Blocking bridging or strapping at 8 ft on center forces the joists to take the path of maximum resistance down making them slightly stiffer. 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. Solid wood blocking helps reduce up or down movement and the twisting of joists.

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