Yaofeng wrote:

Over the Labor day weekend, I refinished a 120 square ft room as a
test run in preparation for the much bigger living room, adjoining
dining room downstairs hard wood floor totaling about 600 square ft.
Although the results looks pretty good, it took almost the complete
weekend to finish. Sanded the floor first with a belt sander rented
from Home Depot (4 hour rental), cleaned, and coated with three coats
of gloss polyeeurathane (oil based), eight hours between coat and
sanding before each coat.

I used a gallon of polyeurathane. The label said coverage is 400 to
500 sq ft. I found 1 gallon is barely enough for a shining floor.

I wonder if I can do the 600 square ft floor over a regular weekend.
It was easy to keep my two dogs away from the room. The living
room/dining room is very open. It may be a challenge. Also what
about using the rotary sander? I think I should do it before the
weather gets cold.

Would appreciate opinions from those who have done this before.

I did the samething, smaller rooms to work up to the larger ones. The
smaller ones took a weekend whereas the larger room(s) took about 1
week. And yes, we had to live a different life until it was finally
done.

I rented sanders from HD too. The initial sanding took all day. So I
rented the sanders for 24 hours -- it's only like a $10 difference. I
used 30,60,80,100 grit in that order. The edging and filling in the
cracks and staple holes took a lot of time as well.

Vacuumed and used tack cloth before staining twice the entire floor with
an oil base finish. Since the stain the was oil based and the poly was
water base, I had to wait 72 hours before I could poly the floor.

I used a sheep skin fleece applicator and the water base poly. I used 3
cots and sanded with 150 screen on a pole sander in between coats. The
water base poly dried in only 1-2 hours. So the poly was done in only
one day.

Hope this helps.
--
JaKe, Seattle
"If you can read this thank a teacher.
If you are reading it in English
thank a veteran."