lc155

An older topic that came across to me due to Google. I've always understood the centre to mean the green line, and I guess that is what my father (retired Scottish spark) did as well, as all the sockets in his house were 300mm up the wall to that green line. I've continued that trend because I think 450mm up the wall looks stupid as hell. I like them nice and low, 300mm to centre green line is good.