Hello againRickard. said:
I don't quite understand what you mean but of course 70mm is more stable, but I have both variants in my house and I don't feel any direct difference. I have chosen to place 45x70 "the wrong way" sometimes to avoid working with crooked 45x45. Connecting to wood or concrete is done the same way regardless of the stud dimension.
For the answer to the first question see picture
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Yes, it happens in the same way regardless of concrete or wood, it's just that my 50s walls are already challenging to screw things into as they are, uneven, different measurements at the top and bottom, etc. I appreciate reading tips and experiences. Maybe an idea then to use both reversed 70 studs and 45 studs since I've already ordered 45 studs. So you mean you don't experience any significant difference in stability? Reinforcing diagonally is also good if you have narrower studs. Or to combine 45 studs with steel studs for the frame. (More are welcome to comment on this thought)
Thanks for a good laugh and great tips, what a fantastic picture.
A 45 frame is good enough for floor heights around 2.50. As for sound reduction due to weakness, that's not true. Slightly worse than a 70 frame by 2-3 dB perhaps. If you frame 450 cc and use double layerboards, it's good enough. Maybe not for driving tanks in. But as a simple interior wall in a residence, it's okay. On the border between kitchen and bedroom perhaps. Personally, I prefer 70 and always go for metal framing. If I'm using wood, it still ends up being in the ceiling, preferably in the floor too.A Arne Vedefors said:
I divided a large bedroom (22m2) into 2 smaller ones with 45/70 studs, OSB, and 6mm gypsum on one side for space reasons and 13mm on the other.
45 can be a bit wobbly, which doesn't matter much.
But for a wall between two rooms like a living room/bedroom, I would definitely go for 120 if I had the option, primarily for soundproofing between the rooms.
I made my wall between two bedrooms as wide as I could without moving a bathroom door, and from a soundproofing perspective, it was okay, but I would have preferred to use 120 if I had the space.
45 can be a bit wobbly, which doesn't matter much.
But for a wall between two rooms like a living room/bedroom, I would definitely go for 120 if I had the option, primarily for soundproofing between the rooms.
I made my wall between two bedrooms as wide as I could without moving a bathroom door, and from a soundproofing perspective, it was okay, but I would have preferred to use 120 if I had the space.
Hello again
You had such a good straightforward answer last time, so I hope you might be able to help me again. There were no 70 studs left, so it ended up being 45mm anyway. I've finally got the ceiling stud up against the dreadful concrete ceiling. It's anchored with a 10 mm sturdy concrete screw, plug, and strong adhesive. The stud is where it is. But now I'm wondering about the cc distance between these screws so I haven't made a mistake. We managed to get 4 screws in, the length of the stud is 3.86. I'm thinking now, what if I've under-dimensioned it now. But I really couldn't get through the concrete on my own (despite a Monster concrete drill), it was my sister who helped me with the other 4. I'm considering if I might get away with using brackets instead. I'd love to hear your comments on this. The cc varies now between the screws. I can come back with a picture and more exact cc measurements.
Thanks a lot in advance.
The screws/glue only need to prevent the wall from tipping sideways, so nothing fancy is needed, as long as it's secured, it's fine.
Hello everyone
I wanted to give some feedback for learning purposes that it went perfectly fine to build a partition wall with 45*45 studs. With several cross braces and OSB, it became very stable along with some angle irons. It was true that 45 studs are often crooked. If I were to do this again, I would use turned 70 studs.
Thank you for your answers and good luck with your projects 👌🏾
I wanted to give some feedback for learning purposes that it went perfectly fine to build a partition wall with 45*45 studs. With several cross braces and OSB, it became very stable along with some angle irons. It was true that 45 studs are often crooked. If I were to do this again, I would use turned 70 studs.
Thank you for your answers and good luck with your projects 👌🏾
What is a reversed 70 stud?N NatBat said:
It was already done&paid for, but as a curiosity, I can mention that in the early '90s, I was an electrical assembler for a short period, and we did electrical work for a house manufacturer where all non-load-bearing inner walls were 45*45 hollow without insulation with 13 mm gypsum, and it worked, albeit a bit rattly.
And why would it be incorrectly oriented? A stud on its "edge" is significantly stronger at taking up vertical loads.Z z_bumbi said:
The point is that you can't turn it wrong, just that it has different properties depending on its orientation.FredrikR said:
I avoid believing and guessing, and base it on what TS actually writes.