Levelling floor-standing radiators on floors that aren't level!

[Beautes]

We're having 12, floor standing, traditional cast iron radiators installed... on floors that aren't perfectly level.

What would you suggest using to pack under the legs to make them level? They will be installed on a combination of wood, tiled and carpeted floors.

I was considering using metal washers, painted black to match the radiators. But I'm no plumber!

Do you think this would work? Can anyone suggest a better solution? Some of the levels are out by almost an inch - that's a lot of washers! I'm not sure how easy it would be to stack them. I suppose they could be held together by putting a piece of pipe through the hole in the centre of the washer...

I attach a photo of one of the legs (needs to be rotated but I can't work out how). The contact area with the floor is about 1cm wide.

 

[joni os]

Castor Cups under each foot will give uniform appearance and washers inside to adjust level.
Deep cups needed.

 

[ShaunCorbs]

Or chop/ cut the legs I've done before

 

[snowhead]

Cut the legs as above as a first choice.

Or use nuts (not Brazils or Hazlenut) and put a screw though the middle to hold them in place

 

[Chalked]

Generally, if it's just a slight wobble. Grinding a mm or so of one leg works.
Don't forget these are heavy rads, so need a fixing to the wall too.

 

[Beautes]

All of these responses are GREAT. Thank you. I've been going round in circles with it. I really like the idea of grinding the legs because it will give a clean and simple finished look, and the nuts idea is super too. I've spoken to the plumber who's going to do the work and he's happy with it too.

Very many thanks.

(Brazil nuts, right? :winkiss