Hey all, I've got a run of quite small 6mm swa cable to run probably along a block wall, but things is the wall has got a number of differing levels on it's face such as 2 inches sticking out then maybe 4 inches next metre along for about a foot. Almost like someone built strength pillars into the wall. Anybody had a pain like this before as I'm thinking cleats as fixing probably won't work now unless the client wants an armoured caterpillar humping across the wall !
