Hi All
I have stairway that has a complete turn from lounge to upper floor i.e. 180degree turn.
I have access in the under stairs cupboard to the whole of the 'turn section'.
My problem, over time the back of the tread has started to part company from the riser such that you can see through the gap created in some places - at this join they are simply nailed together ! Most advice I have seen about stairs repairs refer to fixing creaking etc by fixing blocks to the tread/riser at the inner angle and checking that the side pieces are sound and secure BUT I can not find any guide as the best/correct way to repair my sort of problem. Simply re nailing does not last long.
I hope I have described the problem OK and would appreciate any guidance and pointers to materials required and sources if obscure to do the repair.

I have stairway that has a complete turn from lounge to upper floor i.e. 180degree turn.
I have access in the under stairs cupboard to the whole of the 'turn section'.
My problem, over time the back of the tread has started to part company from the riser such that you can see through the gap created in some places - at this join they are simply nailed together ! Most advice I have seen about stairs repairs refer to fixing creaking etc by fixing blocks to the tread/riser at the inner angle and checking that the side pieces are sound and secure BUT I can not find any guide as the best/correct way to repair my sort of problem. Simply re nailing does not last long.
I hope I have described the problem OK and would appreciate any guidance and pointers to materials required and sources if obscure to do the repair.