I wish to put up stud walling in a first floor bedroom. One wall will cross floor joists perpendicularly and the other will run parallel to the floor joists. For the parallel wall how should the floor be strengthened (if at all) if it doesnt lie directly over a joist. the joists are approx 120mm deep and at 450mm spacing.
Both walls are at most 1.75m long.
Both walls are at most 1.75m long.
