I am trying to install a pedestal sink. I cut out a piece of drywall from
the area that I need to install a 2x4 wood plank to anchor the sink. However
after cutting out a small piece of drywall, I found that there was a PVC
pipe that runs between the studs!! So, right now there is no room to fit a
2x4 piece of wood in between the studs. Is there another method to
install/anchor the pedestal sink without calling the plumber? Thanks!
Thanks for the reply.
The instructions state that there needs to be something there. I've read a
lot of conflicting posts about how much weight the pedestal actually holds
vs. how much the wall actually holds. This does worry me so I'm trying to
stay with installing the wood plank. However, if there are no answers, i
might just try this approach.
Well, the obvious answer is the correct one here: the pedestal holds
*all* of the sink's weight. Connecting it to the wall is just to keep it
from moving around (in the x-y direction, not the z-axis).
When I installed a pedestal sink for my friends, I ended up simply
gluing (caulking) it to their tile wall. Works fine, even with a small
kid in the family.
The best argument against democracy is a five-minute
conversation with the average voter.
to be more specific, the wall I want to attach the pedestal sink to is
shared between two rooms. So, the pipe that I'm referring to has drywall on
two sides of it. The diameter of the PVC pipe is close to the distance
between the two drywalls (difference is less than 2"), so I don't know if
is any space to install the 2x4 plank.
If anyone has any ideas, let me know. Thanks!
All it does is keep the pedestal from tipping; i.e., there is not normally
any "pull" on it. Even a piece of 1/8" ply can do that assuming the ply is
firmly attached to/in the wall. Now, 1/8 would be no good if you tried to
afix the pedestal to it with screws as there is not enough thickness for
screws to bite; however, bolts would work just fine. I am not suggesting
you actually use 1/8" ply, just using it as an example to demonstrate that
the thickness is pretty much immaterial.
Doesn't need to be a 2 X 4.
Notch the 2 studs to accept a slab of 1/2" plywood,
maybe 3" wide. Screw the ply to the studs and then
use a pair of closet screws like this:
One end has wood threads, other has 1/4-20 machine thread.
Mark where the screw(s) needs to be and screw into the ply.
Slip the basin onto the stud ends and use washers and hex nuts.
To avoid cracking the basin, put a rubber washer in the stack.
There are other variations on that theme, but you
get the idea...
The basin needs solid support, not for the weight,
but because of loads imposed when someone leans on it
or otherwise tries to pull away from wall.
You could use wood instead of drywall if it would be completely covered by
the basin, this could allow 1/2 plywood to be surface installed. Be careful
you don't hit the pipes when driving the screws or anchor bolts.
This is the best answer so far. Get a hunk of finish grade plywood the
same thickness as the drywall, and flush it into the wall where the sink
needs to go, mud and paint to suit. Needs to extend across at least 2
studs, 3 is better, unless the sink mount points happen to line up
exactly in one stud bay. You want at least a foot tall, with 3-4 screws
per stud. Cabinet-hanging screws, not drywall screws- those snap off
sometimes. Construction adhesive can't hurt, just for a little
belt'n'suspenders. The note about not penetrating pipes (including vent
stacks) is a very valid point. Unlike a copper or iron pipe, you can
drill/screw into PVC without even noticing it. When you have the wall
open to put in the plywood, make some witness marks on the wall outside
of the area that will be repainted. (light pencil wipes right off.)
Note than on many modern non-commercial pedestal sinks, the pedestal is
mainly a decorative pipe cover.
This is a very interesting idea! So, there is material that can be used as a
substitute for drywall? Or would I get plywood and just put mud over it (i
guess the joint compound sticks to everything pretty well)? And then doing
it this way the plywood would provide sufficient support for the sink?
I just wnat to be sure before i tackle this project this weekend. Thanks!
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