How to hang cabinets in double plasterboard, too tight behind plaster for toggle anchor

[msvenssion]

I am going to hang an Ikea Ivar cabinet on a drywall. I was planning to use two molly bolts, but after drilling, I discovered that it is double drywall ~26mm. Additionally, there seems to be another wall behind the drywall, so there is no room for longer bolts/screws than 55mm. I can't find any molly bolts under 55mm made for double drywall. Does anyone have tips on how I can hang the cabinet?

 

[Jocke Best]

It depends a bit on what the wall behind is made of, if you can insert something like a threaded rod. Otherwise, I would experiment with some type of sealant or adhesive in a hole, and then press in a plug before it hardens. It will hold like a rock if you press it in so it forms a lump between the walls.

 

[fribygg]

Screw in the reglarna.

 

[msvenssion]

Depends a bit on what the wall behind is, if you can insert something like a threaded rod. Otherwise, I would have experimented with some type of sealant or setting adhesive in a hole, and then pressed in a plug before it cured. It will hold like a rock if you press it in to form a lump between the walls.

I don't really know what the wall behind is, so I would preferably not drill into it. What type of plug would be suitable in combination with sealant or setting adhesive?

 

[msvenssion]

Screw into the studs.

Seems to be steel studs, if I understand correctly you can't fasten anything to those.

 

[fribygg]

Seems to be steel studs, if I understand correctly you can't fasten anything to those.

Of course you can, there are already two layers of plasterboard, so with the right screw you can hang up your shelf too.

 

[camaro z28]

You can't just hang a cabinet with molly plugs in a drywall! At least that's what I think!

 

[Matti_75]

But if you have steel studs, you have air behind the drywall. You don't have more layers of boards behind, do you?
What kind of house is it and what kind of wall? Against a neighbor if it's a multi-family house?

 

[msvenssion]

Of course it does, there are already two layers of plasterboard so with the right screw you can hang up your shelf too

Aha, that could be something. So what is the right screw in that context?

 

[msvenssion]

But if you have steel studs, then you have air behind the drywall. You don't have more layers of boards behind just that?
What kind of house is it and what kind of wall? Against a neighbor if it's a multi-family house?

Doesn't seem to be more than 30mm of air behind the boards. The wall behind feels like concrete. It faces a neighbor, it's a multi-family house.

 

[fribygg]

Aha det kan ju vara något. Vad är i såfall rätt skruv i sammanhanget?

I would choose montageskruv

 

[Gooli]

If you hang the cabinets on a mounting rail, perhaps you can place the screws so they hit the studs?

 

[Matti_75]

But if you have 30mm air + 26mm drywall, doesn't a 55mm Molly plug work?

 

[msvenssion]

But if you have 30mm air + 26mm plasterboard, then a 55mm Molly plug should work?

Yes, it should work, but I can't find any 55mm plugs for double plasterboard. If you're aware of any, I'd gladly appreciate suggestions.

 

[Matti_75]

Fischer duoHM is a variant