Hi, I need to raise the floor level over a cellar to match the concrete floors of the rest of the house. Current floor is regular floor boards on joists and needs to be raised approx 70mm.
I am thinking 50 mm celotex boards on top of current floor boards, then
18 mm t&g chipboard flooring, with no overlapping joists. The final floor covering will be 19mm hard wood flooring.
Any tips or advice gratefully received.
Thank you