How to install a lavatory on plaster wall!

[Seckin]

We have a wall made of plaster in bathroom. I have to install a wall hung lavatory on the wall. Should I believe the wall could withstand the weight of the lavatory? Do I need to locate any plate or any material to mount the studs and use the lavatory safely?

Have you ever seen any plaster wall to install a wall-hung lavatory ?

 

[PlumbBobBob]

when you say wall hung is it high level or low level?

 

[dontknowitall]

A sheet of plasterboard won't hold a wall hung wc!!

You'll need to break into the wall and build a decent wooden frame to hold the wc and/or use the supporting brackets designed for the wc.

 

[Best]

If it isnt a close coupled toilet - in other words if the cistern is not sitting on the pan, so therefore a high or low level cistern which relies totally on the screws at top to stop it pulling away from wall, & brackets below it, to take the weight, then you need wall opened up & timber put in, for screws. Cistern full of water is heavy, obviously.

 

[PlumbBobBob]

:iagree:

 

[Seckin]

The item is a wash-basin. Do you mean the same features must be provided for a wall-hung wash-basin?

 

[WaterTight]

Surely if appropriate heavy duty plasterboard fixings can be used to hang large rads on plasterboard walls (even if not the preferred method) they can be used to support a WC cistern.

But a wall hung pan I'm guessing too much.

Not clear which is being proposed. If there are instructions with item in question it will probably state requirements which will probably exclude use of such fixings.

 

[MattWeth]

I'd seriously ask myself if a wall hung WC is the best choice on a stud wall like this. Anything is possible but whether the extra work is worth it is another question...

Edit: hang on - I just heard goalposts moving - are we talking about a washbasin or a toilet?

 

[WaterTight]

I thought it was a loo?

In either case. Best method is to fix to studs if you can find them or studs you install if not so lucky. But that's not to say you couldn't get away with using other fixings, it just probably isn't sleep-at-night-inducive.

 

[dontknowitall]

A sheet of plasterboard won't hold a wall hung wash basin!!

You'll need to break into the wall and build a decent wooden frame (preferably with a sheet of ply to the floor) to hold the wash basin and/or use long, Fischer type fixings to go through to the brickwork.


NEXT!!! ...

:wink5:

 

[WaterTight]

Surely if appropriate heavy duty plasterboard fixings can be used to hang large rads on plasterboard walls (even if not the preferred method) they can be used to support a WC cistern.

But a wall hung pan I'm guessing too much.

I guess the difference is a large rad has much more limited outward pull than a pan or basin?

 

[PlumbBobBob]

don't forget a rad has brackets which usually have two screws each

 

[WaterTight]

Yeah. Which is what I was thinking originall with a WC cistern. For instance those low level plastic ones which are lightweight and have four screwholes. Surely they'd be ok on a pasterboard wall with correct fixings?

 

[mountainman]

There could be up to 4gallons of water in the cistern = 40lbs.
Add weight of cistern, say 5lbs.

Should be Ok until you consider that the plasterboard would weaken over time due to water absorption.
Add to this the stresses of regular flushing and occasional use as a steadying point while fellas take aim.

Won't be too long before wall mounted cistern becomes floor mounted.
MM

 

[PowerFlusher2]

There could be up to 4gallons of water in the cistern = 40lbs.
Add weight of cistern, say 5lbs.

Should be Ok until you consider that the plasterboard would weaken over time due to water absorption.
Add to this the stresses of regular flushing and occasional use as a steadying point while fellas take aim.
Won't be too long before wall mounted cistern becomes floor mounted.
MM

This assumes somebody doesn't come along and lean on the cistern or wash basin, or even grab it as they slip in the bathroom, bringing the whole lot down on top of them. If you have a brick wall behind the drywall, fix the things to that and not the drywall. If you have a stud partition without brickwork then break in and build up the stud work where you need to attach the cistern/wash basin!

 

[dontknowitall]

I was more thinking that a wall hung wc was the pan connector hanging off the wall, so these weights of 40lb or whatever are rather dwarfed by Mrs Jones sitting down (or her heavy husband ...)

 

[glenno1]

As an absolute minimum i would advise opening the wall up and putting a nogging in to screw into