I'm going to be making a "granny charger" board for the garage wall as soon as a circular saw arrives that I won on ebay.
I'm just laying out the 32a rated commando socket as well because that will eventually be used to plug in a variable power Zencar portable charger with different power settings ranging from 10a,16a,20a,24,32a when I get the armoured steel 6mm2 core cable laid.