I need to cut some holes in my joists for rewire and have the following questions:
1) - What size holes should I cut and how many wires is it safe to feed through them. (I'm doing both ring main and lighting circuits)
2) - Where abouts in the joist is safe to drill so not to weaken the joist?
3) If I have to drill several holes in the same joist how far should I space them apart?
3) - I can't use a wood cutting bit in my drill as the space between the joists is too narrow. Will I be OK with a hole cutting fixing? (I'm guessing they are shorter)
Many thanks
1) - What size holes should I cut and how many wires is it safe to feed through them. (I'm doing both ring main and lighting circuits)
2) - Where abouts in the joist is safe to drill so not to weaken the joist?
3) If I have to drill several holes in the same joist how far should I space them apart?
3) - I can't use a wood cutting bit in my drill as the space between the joists is too narrow. Will I be OK with a hole cutting fixing? (I'm guessing they are shorter)
Many thanks