var/icon_regular_floor = "floor" //Determines what icon the steel version of the floor should have. Determined at floor creation (New() proc). If the icon_state of the floor at that point is one from the global icons_to_ignore_at_floor_init var, then this variable is assigned the value "floor". The icons_to_ignore_at_floor_init list contains broken, plating, burnt and non-steel icon_states from icons/turf/floors.dmi

 heat_capacity = 10000 //When a fire (hotspot) on the tile exceeds this number, the floor has a chance of melting. The more the number is exceeded, the higher the chance of melting.

 var/broken = 0 //This mostly only determins if you'll get the tile back when you use the crowbar

 var/burnt = 0 //This mostly only determins if you'll get the tile back when you use the crowbar

 var/obj/item/stack/tile/floor_tile = new/obj/item/stack/tile/steel //What floor tile is on the tile