Replacing Floor Joists From Below

Working in the unfinished basement below the bouncy floor we had to remove the plumbing and electrical lines running through the joists and then rerun the lines.

Replacing floor joists from below. It was a complex expensive job. Start by cutting out a small 1 2 in 2 5 5 1 cm section of the floor joist with a reciprocating saw. Put the tip of the crowbar between the boards and push it in using the hammer to tap on the end. First you re working from below.

But if there s limited access to the joists it may be necessary to work from above removing the flooring and subflooring to repair or replace any damaged floor joists. From initial inspection it appeared that someone had notched the joist too much and then installed a makeshift patch. Typically floor joists are repaired or replaced working from below in a basement or crawl space. Subfloor is glued and screwed on top for a squeak free floor.

Installing a floor joist is a relatively easy task in new construction. Thre ways to fix a sagging or sloping floor. Depending upon the conditions it is possible to strengthen or repair existing framing members such as floor joists or roof rafters by adding reinforcing material sandwiching the member on either side with plywood is sometimes worthwhile but the plywood must be installed correctly for greatest strength. To replace floor joists you must first remove the floorboards that cover them.

Lower the piece of subfloor you. Years ago while working as a carpenter i helped stiffen a bouncy floor by nailing a new 2 10 to each of the 2 10 joists that supported the floor. Continue reading below our video of the day get out your crowbar and your hammer. That s a different story.

Using some construction adhesive like loctite pl premium available on amazon in a caulking gun run a small bead of adhesive along the top of the floor joists. The notch was made where the floor joist recessed into a wood beam supported by chimney corbeling. But replacing a joist in a house that already stands. Pry the floor joist from the subfloor with the back of your hammer.

Replacing the floor under the bathtub toilet and the sink. The foundation is open and the joists just drop in from above.