Wall-mount sink on plaster wall

Hi everyone. We are renovating a small second-floor bathroom in a 1901 brownstone and want to use either a pedestal or wall-mounted sink. The wall to which the sink would be mounted is plaster. (Currently, there is a sink there with a large vanity/cabinet thing, which we haven’t removed yet.) What do we need to know and what should we be thinking about in installing something that is mounted on the wall here? Thank you !

mstamib

in General Discussion 4 years and 11 months ago

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stevecym | 4 years and 11 months ago

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is this going on an exterior wall, with plaster right to the brick? so you can drill holes not only into the plaster but clear through and into the brick and mount with anchors. i often use the cheap plastic ones but i toss the screws they sell in the kits and i buy longer ones to really get into the underlying and stronger wall. if it crumbles while doing this, i insert a thick epoxy, the stick type, and then push the anchor into it and get the screw in before it all hardens.

the wall between our bathroom and bedroom has something between it that i would not call studs. more like heavy firring strips. but it holds the wall up. would i trust these to support something heavy, perhaps not. it might hold it until someone leans on it.

there are other ways to hang things on walls which have compromised integrity. if op comes back on and tells what they think the situation really is, maybe this can be parsed out-

Guest User | 4 years and 11 months ago

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there have to be studs, otherwise you wouldn’t have a wall…
i think you should expect a fair amount of damage to the plaster that is currently hiding behind the existing vanity and you might need to do some replacement work there before putting up a new sink.

mstamib

in General Discussion 4 years and 11 months ago

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Thanks. I think wall-mounted sinks are typically mounted to studs or wood framing attached to studs, but I don’t think we have studs behind the plaster–that’s why I am wondering how these things would be mounted…

stevecym | 4 years and 11 months ago

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years ago i watched a plumber mount a sink to a bathroom wall. the edge of the sink rested on a metal bracket. that bracket has to be mounted to studs in the wall. that much i can tell you.

with respect to what i say above, a lot has changed since i saw this done. a lot. so maybe they don’t mount that way anymore, i do not know. everything we see now seems to have a vanity under it.