In a lot of Pennsylvania houses the best floor available is the one already down there, under the carpet, doing nothing.
Narrow-strip oak is hiding in more houses than people expect
Narrow-strip oak was standard in Pennsylvania for decades, and wall-to-wall carpet was standard
on top of it for a few decades after that. Pull back a corner in a bedroom of a mid-century house
and there is a genuine chance you are looking at a floor worth keeping. Refinishing it typically
costs around a third of what replacing it would, and it is the original floor rather than an
imitation of one.
How to tell whether yours can be sanded
What you are checking is how much wood sits above the tongue. Pull a floor vent and look at the
cut edge of a board — that gives you a free cross-section. Solid strip flooring can usually take
several sandings across its life; under roughly three-quarters of an inch of remaining face, a full
sand becomes a gamble because the sander can reach the tongue and the nails.
Engineered wood is a completely different question, and the answer is often no. It depends
entirely on the thickness of the top veneer, and a great deal of what was sold in the 2000s cannot
be sanded even once.
Things that do not automatically rule out refinishing: dark stains, deep scratches, pet
damage, several old coats of polyurethane, and gaps between boards. Things that usually do: water
damage that has cupped boards badly enough to crack them, and areas where the wood has been sanded
so thin that the nail heads are already visible.
What refinishing costs in Pennsylvania
Refinishing runs roughly $3 to $8 a square foot in Pennsylvania, against $6 to
$21 to install new hardwood. Most of the spread inside that range is about how much repair the floor
needs first — replacing damaged boards, filling, dealing with old adhesive — and whether you want a
site-finished oil or a waterborne finish.
An estimate, not a quote. These are planning ranges for Pennsylvania, not a quote. What you actually pay depends on your rooms, your subfloor and the material you choose — final price depends on your project.
Waterborne finishes cure faster and smell far less, which matters a great deal if you are living
in the house while it happens. Oil-modified finishes amber over time, which some people want in a
period house and some people hate. Neither is wrong; they are just different floors in five years.
The old-house part
If your house predates the 1950s, the boards may sit on 1×6 planks laid diagonally rather than on
plywood. That is fine for refinishing — it is the original assembly and sanding does not care. It
matters enormously if you are considering replacing the floor instead, because most floating systems
need a flat continuous surface underneath, and that means an underlayment or a plywood overlay goes
down first.
The other old-house condition worth naming: if there is 9×9 tile anywhere in the basement or back
hall, treat it as asbestos-containing until a lab says otherwise, and do not let anyone grind it up
to level a floor.
Frequently asked questions
How many times can a hardwood floor be refinished?
A ¾-inch solid floor can typically take somewhere between four and seven full sandings across its
entire life, depending on how aggressive each one was. Most Pennsylvania floors of that age have had
one or two.
Can I refinish just one room?
Physically yes. Visually, a newly sanded room next to an older one will not match, even with the
same stain, because the old finish has ambered. Doing a whole floor level at once is usually the
better outcome.
How long before I can put furniture back?
Walking on a waterborne finish is often possible within a day; furniture usually wants several
days and area rugs want considerably longer, because the finish continues curing after it feels dry.
Follow the specific product’s cure schedule rather than a rule of thumb.