Hello,
I'm thinking of starting to put up some shelves and I'm not very knowledgeable... After a series of Google searches, I'm completely lost as to what type of walls I have in my apartment (30s building in the city center) and now I'm wondering what to do.
In one hole, I encountered some form of wood, I think, as sawdust came out, this was after the plaster. After careful drilling back and forth for the remaining holes, it's a mix. Black powder/dust, darker gravel, a few bluish gravel pieces, and some finer gray powder/dust. Drilled up to 11 cm, and then it felt like there was a small cavity at the end. I drilled hoping to hit more wood but without success.
I used a metal drill and it was very easy to drill all the way.
What do I do to get something up on the walls? Any help is greatly appreciated!
Thanks a lot!
I'm thinking of starting to put up some shelves and I'm not very knowledgeable... After a series of Google searches, I'm completely lost as to what type of walls I have in my apartment (30s building in the city center) and now I'm wondering what to do.
In one hole, I encountered some form of wood, I think, as sawdust came out, this was after the plaster. After careful drilling back and forth for the remaining holes, it's a mix. Black powder/dust, darker gravel, a few bluish gravel pieces, and some finer gray powder/dust. Drilled up to 11 cm, and then it felt like there was a small cavity at the end. I drilled hoping to hit more wood but without success.
I used a metal drill and it was very easy to drill all the way.
What do I do to get something up on the walls? Any help is greatly appreciated!
Thanks a lot!
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It might be good to talk to neighbors and the board since others have also wanted to put things up on the walls.
In 1930s houses, I believe there are wooden frame structures covered with reed matting that have then been plastered, but also slag stone that is dark gray (sometimes bluish) and brick. The latter are porous and difficult to attach things to, so back when the houses were new, they had floor-standing bookshelves and only put up light items like paintings on the walls. But you can try with chemical anchors.
In 1930s houses, I believe there are wooden frame structures covered with reed matting that have then been plastered, but also slag stone that is dark gray (sometimes bluish) and brick. The latter are porous and difficult to attach things to, so back when the houses were new, they had floor-standing bookshelves and only put up light items like paintings on the walls. But you can try with chemical anchors.
I'll have to take a round, I asked the neighbor on the board but she wasn't quite sure.BirgitS said:
How deep should the plank frame lie? I've gone 11 cm in and still haven't encountered anything different. Should I check even deeper?
If it were brick, shouldn't it be red and more powdery rather than gravelly? It sounds like it might be slag stone then... what length of screw and depth with chemical anchors?
Thank you so much for the help!
The slag stone I have encountered has been more like concrete. Very dusty (black/dark gray) and it has worked well with plugs and screws. What type of 1930s house is it? Size?
well, thanks for the help
I'll have to test it out, see what holds and what doesn't
it's porous so lightweight clinker or slag stone are probably the options. lightweight concrete plugs or sturdy nylon plugs are the alternatives available. if it doesn't work, I'll have to try some special solution, like fill and fix, house fix, chemical anchor or maybe anchor mass. feels like a lot of work to get something up on the wall but oh well
I'll have to test it out, see what holds and what doesn't
it's porous so lightweight clinker or slag stone are probably the options. lightweight concrete plugs or sturdy nylon plugs are the alternatives available. if it doesn't work, I'll have to try some special solution, like fill and fix, house fix, chemical anchor or maybe anchor mass. feels like a lot of work to get something up on the wall but oh well