ᐅ Freestanding bathroom wall: Can the wall support a double sink?

Hello everyone,

I need a quick assessment.

We want to build a freestanding wall in our bathroom (about 2m x 2.2m [6.6 ft x 7.2 ft]). I planned to build it with aerated concrete blocks, 17.5cm (7 inches) thick, directly on the raw floor (the screed will be installed afterwards). The wall will have no additional support or connection to other masonry.

Will the wall hold if we later mount a double washbasin on it?

Should I perhaps build it 24cm (9.5 inches) thick instead?

What is your opinion?

Thanks for any help.

I would first fasten 2-3 “studs” to the raw subfloor and embed them into the masonry (for example, Würth C-profile with base flange), basically as a substitute for connection reinforcement.

Otherwise, I would be concerned that the joint between the raw ceiling and the first course of blocks would not hold because the overturning moment on the wall would be too large.

Yes, I do have some concerns about that. Thank you for your assessment.

And you think I can then lean against it? I can’t imagine that with aerated concrete.

At 17.5, I think it’s possible. Leaning against it should still work. Jumping against it might be difficult ;-)

Schluffi0815 schrieb:
Should I possibly go for 24cm (9.5 inches) thick walls instead?

That won’t make a difference. Nowadays, we’re no longer dealing with small-format bricks where a 24cm (9.5 inches) wall would alternate between stretcher and header courses. The suggestion with the angles is already a good one. And, even though I’m glad to see someone not planning a "T" shape: how about considering a slight "L" shape (or even a "Z")?

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