Planning to lower the ceiling in the bedroom and I'm wondering about the dimension of the studs I should use. Initially, I thought about attaching 45x45 to the ceiling to avoid lowering it too much. But that becomes quite tricky since the ceiling is concrete. Instead, I thought of installing steel tracks on each side of the room and spacing them with studs across. The span is 425cm, so is 70x45 sufficient?
If they are steel rails typically used for sills and hammer beams, I cannot see it being a good solution. A better option would be to build a frame around the room with 45x70 and use angled screws to fasten studs in between. However, you need to reinforce the studs at, in my opinion, at least two points, which is most easily done with a 70-angle that you attach with concrete screws or alternatively nail plugs in the ceiling.
Another option that builds with the least space is, of course, to space with 28x70, which you attach with concrete screws at cc120.
Another option that builds with the least space is, of course, to space with 28x70, which you attach with concrete screws at cc120.
