Hello.
I have had a floor on the upper level that flexes, allowing sound to travel clearly down to the lower level, where you can both see and hear the ceiling light shaking (on the lower level). In my son's room on the upper level, toys can fall over when jumping on the floor.
I have now entertained myself by installing cc30 instead of cc60, see image.
The span is about 3600mm, and I have installed C24 -195x45s which are supported on either side by the lower level walls.
It still doesn't feel completely solid.
Do you have any tips on what I can do before I put it all together for maximum 'sturdiness'?
The floor before was 18mm + parquet; I plan to maintain the same height for a floating floor.
I have tongue-and-groove wood from the 1950s that I plan to use. Or should I consider chipboard?
I placed two rows of nogging according to the messy image on the right.
All tips are welcome.