Can I lay slate on wooden floor boards?

[JugglingChaotically]

Small Victorian terrace. Kitchen at back will be in slate. Sitting room off hall is in wood - has been for ages. Stairs carpeted (possibly with runner).
Builder suggesting amtico for hall but I think stairs, hall, sitting room kitchen all different will look really odd.
So would like to take slate from back door through kitchen and hall to front door.
Builder says not on wooden base.
But part of kitchen is wood?
And tiles on bathroom floor on wood??
Confused so advice appreciated!

You would need to out down some kind of hardboard in the floorboards otherwise the slate will be liable to cracking as the boards move.

Would that work? It's what we've done in bathroom. Builder not at all keen!

We had slate on marine ply in our old house kitchen. Was down for about 7 years without any damage

Might be an obvious question, but do you mean slate tiles with grout in between? If so I agree with your builder, the grout will continually crack as there will always be some movement from the 'give' of the floor boards. I wouldn't

I don't think it's impossible, but you'd want to put a zillion screws (not nails) in the floor boards to hold them solid and cover the boards in large sheets of ply, again screwed down very well. This would trash your floorboards - there'd be no going back!

FWIW I don't think it looks odd to have different flooring in different rooms. Do think about the noise of having slate in the hall as it's a high traffic area.

If you put ply wood over your floor boards will that give you a height difference between rooms? Imo having different flooring would look better than having the hall floor higher than the other rooms.

Agree with others - you ideally need to take up all the floorboards and replace with firmly screwed down hardboard/ply (having first checked that all the joist surfaces are level and even so that your hardboard will sit evenly).

Personally if you have decent floorboards in your hall I'd stick with those - much warmer and quieter than slate and will match the sitting room.