How to frame to thicken an interior wall?

[MarcusNils]

Hello!

I have plans to thicken an interior wall at home partly to get rid of the feeling of thin walls, but also because I want to build a wall niche and I prefer to have some depth in it (today, so hurry to answer!! 😂).

I will frame and plaster. I wonder if the new studs need to be attached to the existing wall for stability, or if I can have a gap between the new studs and the existing wall. The reason I ask is that 70mm studs are cheaper than 145mm 😁. Will it be unstable with 70mm since there is only plaster on one side of the stud?

All the best!

 

[Suvi5700]

Hello!

I plan to thicken an interior wall at home partly to get rid of the feeling of thin walls, but also because I'm thinking of building a wall niche and would prefer to have some depth on this (today, so hurry to respond!! 😂).

Gonna frame and drywall. I'm wondering if the new studs need to be attached to the existing wall for stability, or if I can have a gap between the new studs and the existing wall. The reason I'm asking is that 70mm studs are cheaper than 145mm 😁. Will it be unstable with 70mm since there's only drywall on one side of the stud?

All the best!

Studs that are 145 mm in an interior wall are incredibly oversized. Most likely it's 70 mm in place today.
Take a picture so we can see.

 

[fribygg]

You can certainly build a wall with 45*70 or 45*45, but skimping on the studs probably makes very little difference in the total cost of a single interior wall.

 

[rotbackarn]

For soundproofing, separate frameworks for the two sides are ideal. So 70 studs that stand independently compared to the existing ones. And insulation in the space.

 

[MarcusNils]

For soundproofing, separate studs for the two sides are ideal. So 70 studs that stand freely compared to the existing ones. And insulation in the space.

I like this answer! Do you think it will be stable enough even though there will only be plasterboard on one side? The concern is mainly about cracking in the plasterboard joints in the future.

 

[AXS]

Place spacers at a few points from the new studs to the existing wall. Sure, slightly worse sound insulation but much more stable.

 

[zarkov]

I like this answer! Do you think it will be stable enough even if there is only plasterboard on one side? The main concern is cracking in the plasterboard joints in the future.

Place some noggings (cross battens) at different heights or even better OSB/plywood under the plasterboard to minimize the risk. Then fill thoroughly with a tape so it would take a lot for it to crack.

 

[Workingclasshero]

Hello
Frame up a new wall, it's cheap.
But... spend the money to clad with OSB, raw paneling, chipboard behind the drywall, and build the niches with the same material which you then cover with drywall.
Everything will be quieter than before and sturdier and better and more beautiful
Good luck.
/W

 

[rotbackarn]

Simple plasterboard on a frame will always feel a bit thin. OSB or equivalent under the plasterboard makes a big difference. Much more comfortable if you are mounting things on the wall as well.
You can take the opportunity to glue wood to the backside of the other wall once it's open.