Hi,
I've discovered a series of holes used to carry a cable through a number of joists. These are nowhere near the centre of the joists, in fact I doubt if any of them are actually 50mm from the surface. Should the cables be re-run or could I just put steel plates over the top. I could do with running another cable through these holes and it seems a bit ridiculous to further weaken the joist adding even more holes.
Thanks
Jim