Cutting Floor Joists For Shower

It s cheap insurance against future cracking of the mud job and tiles.

Cutting floor joists for shower.

The joist size is 100mm by 50mm and i need to cut it to 50mm by 50mm. Line the chalk line up with the rim line and snap the line. If the cut outs are too large or in the wrong location the joist can be weakened and unable to support the load it was designed for. In this case the bathroom floor framing there cannot be the danger of a structural catastrophe but instead we may have to deal with an excessive deflection.

Set the joists to the layout on the rim line using a two man team. Add 1 8 inch of additional length so you can fit. Resizing joists for walk in shower. Note the photos show a recent bathroom remodel where we relocated the tub drain across several floor joists.

The joist was encased in spray foam so it was invisable to the home inspection we had done. I want to make a walk in shower and i need to cut into the floor joists so the fall and mortar bed can be built. Pry the floor joist from the subfloor with the back of your hammer. Start by cutting out a small 1 2 in 2 5 5 1 cm section of the floor joist with a reciprocating saw.

Also all that mud and tile plus showering people are heavy and the extra support would be good to have. Sometimes joists are notched at the end where they bear on a wall or sill. Fine homebuilding with jim anderson demonstrates how to cut floor joists to length. Instead of standing the joists up to square them cut them on both ends.

Tradespeople often need to cut notches or holes in floor and ceiling joists to run pipes ductwork or wires. Tap a nail into the joist to keep it from moving around. So the only solution is to cut a few inches from the existing joist tops. Then use pry bars and your reciprocating saw to pry and cut the floor joist away from the subfloor.

The best in my mind is dropping 3 of joist and pouring the pan over rubber membrane. The floor system is 2 10 joists spaced 12 inches on center. Prior to drilling holes in these floor joists we installed 3 4 inch plywood to each one. As this is half the joist i need to re support the joist and i planned to sister the joist with another 50mm by 50mm and also add trimmers for extra support.

If it were my house besides the sistering mentioned above i would also add a 6 inch deep joist between each cut down joist to cut the span in half. We cut out and doubled up a header where the tub p trap was to be installed. Inspect the rim line to know where to set the joists. Cutting from the joist height has always been and is a sensitive issue.

This was the likely cause of the crack in this shower pan in a house only 5 years old when we bought it. This will create a weak spot.