"micky" wrote in message

stuff snipped

I suspect your casters, if they are typical rolling chair casters, are
made
from very hard plastic. Switching to a rubberized wheel will greatly
reduce
the damage to your flooring. You're looking for something soft enough so
that you fingernail will be able to make an obvious dent when pushed
against
it.

Thanks. I like the standard with the fingernail. The chart Vic
posted led to pages with both rubber casters and soft rubber casters.
That goes with what you're saying. I havent' seen rubber casters for
a long time, and they sort of remind me of the 1920's, but I guess I
haven't looked.

The problem with the fingernail standard is that it's kinda hard to apply to
casters purchased over the internet. (-: I think one problem you'll find
is that rubber-wheeled casters tend to be oversized and may not look so good
on your chairs.

--
Bobby G.