I have a question..
I am going to build a slot or box in the ceiling, about 45 cm wide out from the wall and 8-10 cm high down from the ceiling.
Today, the ceiling has gypsum planks and nail battens that are not at the measurements where I am going to frame the ceiling.
I was thinking of attaching a 28x70 sparse, but is it enough to screw it subsequently cc30 into the gypsum planks and use adhesive? I don't want it to fall down.
Or do you have a good solution?
