Buy electrical items now?

I would clarify that beforehand if I were you. It is said that thinking should be left to the horses, they have bigger heads..

4500m slots??? In a single-family house?

Hello apokolok Of course, it was 4,500 meters of cable. The slots for it, which I made myself, were significantly fewer. I advise the thread starter to carefully consider where the cables will be laid. Then rent a wall chaser. Cut all the slots within a few days. Afterwards, chisel the slots free. And buy a diamond-tipped flush cutter. That makes it much easier. A good drill is also necessary. I bought a blue one from Bosch for 800 euros. I thought, if it survives the construction, the money is well spent. What can I say: It will probably outlive me. Steven