I'm hiding some HDMI cables in the wall and have metal capping to protect the cables. The metal backboxes have those holes which you push out, but they aren't wide enough for a HDMI to pass through. I've cut between them with an angle grinder to create a big hole but it's a bit of a mess. I know they won't be seen but surely there has to be a neater way of doing this?
It's a dot and dab wall so the box would need to be 25mm which rules out cavity boxes as they seem to start at 35mm.
It's a dot and dab wall so the box would need to be 25mm which rules out cavity boxes as they seem to start at 35mm.