How much will it cost? How long it takes?
For a rough idea for time line. For a 100 square foot room going with natural color with water-based finish the room will take 2 days to finish as recommended by the finish manufacturer and the same for a colored floor if using a quick dry stain. The first day is for sanding (staining) and Appling the 1st two coats of finish and the second day for the last coat of finish. But most companies will do all 3 on the first day.
For a natural color floor using oil-based finish it will take 4 days to finish due to dry time of the oil finish And up to 5 days for a stained floor using an alkyd based stain unless the stain they used contains a sealer and is a quick dry.
It's not recommended to use a water base stain with an oil floor and vice a versa unless specifically manufactured for staining hardwood floors.
Cost and time line really depends on what all you want done and what type of finish products are being used.
You can plan on spending anywhere between a $1.00 a square foot for natural finish and color for a very bad job to be done with cheap products that won't last and the workmanship will be just as bad as the products
And up to $4.50 a square foot for natural colour and finish.
And for a color stained floor
You can be anywhere from $2.00 a square foot up to $7.00 a square foot.
Time line for finishing the job depends on the finishes that you choose.
water-based finishes dry quickly and generally take 2 days to do 3 coats and you need to give it 24 hours before you apply the last coat even though each coat will dry within an hour of applying it and with
oil-based finishes it can take up to 48 hours for each coat to dry if applied with a lamb's-wool mop compared to being applied with a paint roller that can dry within 12 hours but you still needed to give it time to off gas before lightly sanding it between coats.
Other factors that you will need to consider when planning for the time line is if there is any repairs that need to be done to the floor and how much stuff is in the house that needs to be moved.
I hope that this is more than enough information to help you with with making your decision on refinishing your hardwood floors.
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