Sink with stud screw on squared timber

  • Erstellt am 2022-01-20 14:44:36

ismon_rlp

2022-01-20 14:44:36
  • #1
Hello everyone,

we are currently renovating the bathroom of our old building. Due to the thin walls (bathroom is in a dormer), water and sewage pipes (both new) for the washbasin are surface-mounted on the wall. We now want to install a pre-wall in front of it ourselves. Since the bathroom is very small (5 m2), and every centimeter counts, the pre-wall should be as slim as possible (small depth). The plan is to screw 4 rows of 44 mm thick squared timber to the wall and then cover it with 15 mm OSB and 10 mm Fermacell. The pre-wall will be about 1.6 m long, 1.2 m high, and tiled at the end with a depth of about 90 mm.

The question now is how best to hang the washbasin (mineral cast + cabinet).

My idea was to make sure that at the height where the washbasin is to be hung, a squared timber is definitely installed and then later two threaded rods (M10) are screwed into the wood, on which the washbasin can then hang. The load-bearing area would then be about 60 mm thick (44 mm squared timber + 15 mm OSB).

I cannot say exactly how heavy the washbasin is at the moment. It is definitely mineral cast (so rather lighter than ceramic) and 70 x 45 cm.

Do you think that two threaded rods sitting in 6 cm of wood can safely carry the washbasin?

Best regards,
Simon
 

Tolentino

2022-01-20 14:53:21
  • #2
So I was promised by the drywall installer and plumber that even 25mm gypsum board would hold 50kg per screw.
In that sense, I wouldn't worry too much about your setup....
 

ismon_rlp

2022-01-20 17:03:10
  • #3
hm 50 or 100 kg can quickly add up when there is water in the sink and maybe a child is hanging on it. :)
 

Nida35a

2022-01-20 17:18:32
  • #4
If the panels are standing on the floor, they hold that easily, with water and child and man. With 15mm OSB and 10mm Fermacel, I would work with 10mm holes and 10mm dowels and 6/8mm screws, e.g. UX from [Angler]
 

Tolentino

2022-01-20 18:10:14
  • #5


Per screw. You use six screws, three on top and three on the bottom. You just have to use proper cavity anchors or your threaded setup.
 

ismon_rlp

2022-01-21 08:32:59
  • #6
So I didn't want to use a dowel in this case. I would have used a threaded rod (160mm) for wood. So on one side a wood screw thread and on the other side an M10 screw thread. The wood thread I would have screwed directly into the 60 mm wood. There is no cavity in this construction at this point.

Or would it be better to create a cavity where the sink hangs and then work with hollow wall anchors?
 

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