How To Hang Floor Joists On Concrete Block Wall

Build a ledge on the inside of the building to set the joist on.

How to hang floor joists on concrete block wall.

Joists sit horizontally on edge on cinder block crawl space foundations or basement walls to support the floors of a home. And have him stand on a chair or more safely. The exact number of floor joists you ll need will depend on the size of the floor. When this is the case the floor joist against the block wall should be pressure treated wood.

Stick framed floors typically consist of 3 main components the sill plate which goes on top of the concrete foundation the rim joists which box in the edges of the sill plate and the floor joists which run parallel to one another to provide internal support. Secure each length to the slab with concrete nails spaced approximately 32 inches apart and 8 to 12 inches from each end. You can use engineered i beam trusses as joists or choose to use 2 by 12. The most common means of securing floor joists to a concrete wall is to install a ledger board that matches the joist size.

These will be the end sill plates that support the ends of the floor joists. The method used in typical 2 by 8 floor joist construction will insure proper support for the floor joists. Keep in mind that my basement is unfinished so the ceiling of the basement is the floor joists. With most concrete block construction blocks comprise the outer walls of a house and floor joists for the main and upper floor attach between the walls.

Install it flat on the slab surface with the outside edge aligned against the side wall or the edge of the floor line. The most common method involves attaching a wooden ledger board usually a 2 10 or 2 12 to the wall and then using steel joist hangers. Then grab your tall dark and handsome son don t have one. For applications where the floor joists run parallel to the concrete block wall the floor joist that runs adjacent to the wall can be installed in the same manner as the ledger beam using concrete anchors.

A step ladder and screw the 1 x 2 x 5 boards into the floor joists right up against the cement block wall. Sometimes the design of a home s floor structure calls for attaching floor joists to a concrete block wall.