The "move a fridge without damaging the floor" thread reminded me of this problem, but I thought I'd start a new thread rather than clutter up that one.
I have a 50 Kg tumble drier stacked on top of an 80 Kg washing machine resting a pair of metal rollers, similar to these...
... on top of a just-big-enough piece of hardboard on top of vinyl flooring on top of chipboard on top of a suspended t&g floor (whew!). The large heavy white tower is rolled into a gap, about 75 cm wide, in the laundry room, between the pipe-work and the side wall. It's all pretty tight, but it went in OK. That was about eight years ago.
I'm not looking forward to the time I have to get it out again. The problem is that the washing machine has walked half-way off its rollers, and it's going to be quite a job getting it back onto them in order to slide it all out. The only access is to he front panel and the front half of one side panel. I don't think there's much I can do about that, though, one day or another it will have to be done.
Then I'll have to put it all back again, and that's where I'm looking for suggestions. Is there anything more durable that I could buy, or make, to allow 130 Kg of appliance to be wheeled in and out, that will stand up to the rocking and vibration of the washing machine? Any suggestions?
Looking on the bright side, there's plenty of room above the tumble drier, so the platform or whatever can be any height, within reason.
[1] Great picture! Just how (any why) did they remove the rollers after putting the tumble-drier in place?