Minimum width of utility room

[ItsNotAGameOfSubbuteoMatthew]

Splitting a 4m space into a study and utility room. Utility room would literally be washing machine at the bottom, shelf on top with tumble dryer on it. My washing machine is only 80cm wide. What's the minimum width you would think is acceptable if you were buying a house with a separate utility room? Door would open into the utility room.

Why not make a laundry cupboard with a door that opens outwards?

Mines too narrow and I regret it.
Counters = 60cm
Walk space = 100cm

Mine is 180cm which is ample room but door does not open into it.

I think as long as the door can open and one person can stand in the room and put clothes in the washing machine then that's fine.

It's not possible to have an opening outwards door as it would be at the bottom of the stairs. It will be 2m depth but wondering how wide as it won't need to have a sink. I'm thinking 1m wide?

I'm thinking 1.2m x 2m might give me storage space for airers down the side of the washing machine.