I realise this will be spec'd in the installation manual for the hob, but I haven't bought that yet and need to plan the cupboard layout. The "re-use of gas appliances" guidance doc suggests, in the absence of other info, 50mm separation between the edge of a hob and overhead cupboards (not to an adjacent vertical surface); I'm planning on 100mm so am assuming that this will be OK for any normal 600mm four burner hob
- unless someone here tells me otherwise ... ?