Replacing Bathroom Floor Joists

Use a tape measure to measure the length width and height of your existing floor joist.

Replacing bathroom floor joists.

Typical floor joists are two by eight or larger. Find a replacement joist that is the same size as your floor joist. Continue reading below our video of the day get out your crowbar and your hammer. Costs will vary widely depending on the extent and nature of the original problem.

3 measure and mark the. Before you replace damaged floor joists you must exterminate the insects or improve the drainage and ventilation so the problem won t reoccur. Find a new floor joist with these exact same dimensions. When you replace the subfloor the new ends have to sit on the joists so cut out your wet subfloor along two joists on either side of the damage.

Floor joists can be damaged by boring insects such as termites or extended exposure to water. To replace floor joists you must first remove the floorboards that cover them. Put the tip of the crowbar between the boards and push it in using the hammer to tap on the end. Make sure to get all of the damaged or moldy.

Exit the area below the subfloor through the crawl space and obtain a piece of framing lumber as the replacement joist.