Install kitchen on "only etc" is it possible? As well as 45*45 studs.

[RicKul]

Hello!

Is there a kind soul who can answer questions?

During an ongoing renovation, where the kitchen wall was intended for me to renovate myself (replace the drywall), I discovered after the boards were torn down that:

The wall consists of 45*45 studs and not 45*70
There was only one drywall board (10mm). No insulation.

Now the question is, in order to avoid making the kitchen even smaller (it's already small), is it possible to keep the studs, and put up OSB boards (the previous kitchen was mounted on the studs) and then install the new kitchen directly on top? (Most of the wall will be hidden behind kitchen cabinets, then maybe renovation wallpaper can be applied, etc.? The areas that need splash protection/laminate?)

The wall has, on the other side, incoming electricity (i.e., the electrical cabinet). Could that be why it's not insulated?

Then it seems they have used scrap wood (filled with nails!) as "extra-material" to mount the electrical cabinet on. These seem to have been exposed to mold, I think, but seem dry. (See image)
I have a builder on site who is renovating the bathroom. He says the wall "needs to be replaced" with 45*70 studs and that all the old should be removed. Is it 100% necessary, or does he just want to earn more money?

 

[hapazard]

Goes well, but put plaster on the places you might want to tile.

 

[Daniel Barnaniel]

Run a row of shortlings where the cabinets are attached. I wouldn't hang upper cabinets on just OSB, in that case ply.
Don't see any reason to change the road, what arguments are there for this?

 

[RicKul]

Run a row of short braces where the cabinets are mounted. I wouldn't hang overhead cabinets in just OSB, prefer ply instead.
I don't see any reason to replace the wall, what are the arguments for this?

Ok, my interpretation of everyone praising OSB was that the material is so strong it should handle much heavier weights than gypsum (including wall cabinets). The idea is IKEA with a rail. But you still recommend studs?

I think one of the reasons is the studs that hold up the electrical cabinet, they look a bit unattractive, and if they need to be replaced, you might as well review the wall.

 

[Rowah]

Yes? And ply is stronger than OSB which is quite easy to strip if you're not careful when the cabinets are screwed up.

 

[Daniel Barnaniel]

Handles more than gypsum of course, but wasn’t that the question? You want something to attach the kitchen to—nogging rows so you can drywall directly or ply, preferably 15 I would say. Unclear about the wall by the electrical cabinet, you might need to talk to the craftsman again?