We used the oribital on a hundred yo oak floor that is about 12x30. We used
(and finished) with 20 grit. We spent about 24 actual sanding hours.
Looking back, we should have used the drum, but we were not familiar with
it's use and didn't want to ruin the first floor we tried. We have since
used the drum, and it takes some getting used to to avoid serious damage,
but if you have a place to practice for about 30 minutes, you'll be ok.

s


"Davej" wrote in message
...
Went to Home Depot yesterday and see they have two sanders for rent.
One is a belt sander and the other is a large orbital. Both are
intended for floors. I just need to take the varnish off an old floor.
Is the big orbital the best tool for this? The room is 15x20ft. Any
idea how long this will take me or suggestions on the grit to begin
with? Thanks.