The Shower Floor Feels Squishy

If left unattended eventually the entire flooring system under the bathroom will collapse.

The shower floor feels squishy.

Thank you for any help. Best is to remove the tub shower unit rip out and throw away the rotted. If the floor deflects a 1 2 of an inch there may be a concern. If this material is subject to moisture or hidden leaks the plywood will rot and the floor will start to feel soft or spongy in places.

Fiberglass bathtubs cultured marble tubs plastic bathtubs etc. Sub floor undersized or engineered. But i can feel it with the ball of my foot or my hand. I ve noticed a soft spot on the tub floor about 3 round.

Does the floor feel soft or squishy. If we press down on certain areas it makes a squishy sound some small pieces of grout are missing. There are no visible cracks and no water damage to the floor underneath it s over a second bathroom. I just bought the house 4 months ago.

After the shower is used and the floor has dried stepping on some of the tiles results in a squish noise and a little water comes up through the grout. The master bathroom has a tile shower. If there s a crawl space under the house you could brace it from underneath but that s not the right thing to do. As an aside the caulking where the shower tub meets the floor looks like it needs to be replaced which is on the to do list but we don t shower in this bathroom and the tile that is squishy isn t next to this area.

Not to mention i have to battle mildew growing on parts of the grout even though we wipe down the shower after every use and leave the fan on. Normal amount of flex few prefabricated shower pans will feel as rock solid as a tiled shower base. We noticed that our shower floor is sinking. This condition allows the floor to give slightly when you step.

Basically undersized floor joists or trusses or spacing too far apart may lead to sponginess. If you are accustomed to a tiled shower base you will immediately sense the difference. Does your bathtub or shower have a crack in the floor. Some bathtubs commonly develop soft spongy floors over time that lead to cracking and sometimes will cause leaks underneath the bathtub.

No jets so no access panel. Your toilet may also feel unstable rocking when you sit down. A spongy feel underfoot might indicate that the subfloor is not securely attached to the floor joists. I cannot see it with my eyes its that shallow.