I'm currently sorting my garden and want to provide electrics outside, a couple of garden lights and maybe a socket and light in my shed. My shed is approx 20 metres from the house and socket will be used for lawnmower/pressure washer. What size cable and how many cores does it need as have seen many variations on ebay! Also regarding connecting it in the house - I ideally don't want to run the cable all the way to the junction box as that is another 30 metres from the back of the house as its a long thin terrace with no easy route. I have a heavy duty cooker cable (10mm) already running from the main junction box(MCB-1B50) to the rear of the house (25m) for when we put an electric oven in. Can this cable be used to to put a small consumer unit with 2 breakers in the kitchen - one for cooker and other for garden cable. What size MCB's would the small unit in the kitchen need? Any help would be greatly appreciated - I am costing this up at the moment and would do all running of cables and get a qualified electrician in to do the connecting up.