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Hi All, I am in the process of building a stand alone (donga style) bathroom, shower, toilet, vanity. It will be approx 4m x 3m. It will sit over a concrete slab with the floor raised approx 160mm, level with a nearby building floor. The floor frame will be steel. So my question is, would yellow/green tongue, flooring be ok, with the area under the shower, sealed. I plan on using some type of panels for the shower walls and an acrylic type floor pan.
Slim
Yellowtongue flooring in wet areas is a common building practice but you need to fully membrane the floor in the room not just the shwr.
Alternatives are fibre cement or plywood
I know some will say it is particle board and will swell if it gets wet and that is true but in practice the flooring material is there to support a waterproof membrane and if the flooring is getting wet the bathroom has already failed anyway and floor will need to be removed
What Beardy said or you could use the Hardi sheet Just a moment... in the shower area only and the yellow tongue for the rest