Floor Finish Coverage per Gallon: How Much Finish a Recoat Takes

One gallon of FloorIt Two-Part Finish covers about 500 to 600 square feet in one coat. The manufacturer's data sheet gives a range of 450 to 600. Plan your jobs on about 550 square feet a gallon.

Coverage is the area a gallon covers at the right thickness. It is not the most area you can push a gallon across. A finish rolled thinner than its rated coverage looks fine on day one and wears through sooner.

The floor changes it too. Worn, dry traffic lanes are thirsty, and the first coat soaks into them. On a worn floor, expect coverage toward the low end. The FloorIt job steps say to keep to about 450 to 500 square feet a gallon when you roll, and never spread thin.

You need the square footage and the number of coats.

A 1,000 square foot floor, one coat: 1,000 divided by 550 is about 1.8 gallons. Bring 2, plus your spare.

A 1,400 square foot floor, two coats: 1,400 divided by 550 is about 2.5 gallons a coat, so about 5 gallons for two coats. Bring 5, plus your spare.

The finish ships in cases of 4 gallons, so keep enough on hand for the jobs on your calendar, not just the next one.

At the partner reorder price, FloorIt Two-Part Finish runs about 22 to 26 cents a square foot per coat, about 24 cents on average.

On an average 1,000 square foot floor, one coat is about 1.8 gallons, about $236 of finish. Two coats is about double.

That is a small share of what a recoat job brings in. It is also the one material cost that grows with every square foot you do, so it is worth knowing to the penny.

The big-brand two-part pro finish is a good one. Its US data sheet lists coverage of 350 to 400 square feet a gallon.

Ours covers 500 to 600. So a gallon of ours goes about 50% further.

Per square foot, the big-brand pro finish runs about 30 to 43 cents a coat, depending on where you buy it. Ours runs about 24 cents. That is about 40% less per foot.

On a 1,000 square foot coat, that is about $236 of ours against about $300 to $430 of the big-brand pro finish. A partner keeps about $64 to $164 more on a 1,000 square foot job.

It is tempting to stretch the last gallon across one more room. Do not.

A thin coat wears out early. When the manufacturer looked at the worst cases they have seen, coats that were too thin were on the list, along with shoes in the house, no felt pads and no regular cleaning.

A thin coat also looks uneven. Thin drags and dry spots show in a water-based finish. Saving a few dollars of finish to get a callback is a bad trade.

Roll it at the rated coverage, keep a wet edge and work toward the door.

A quick check helps. Before you start a room, know its square footage and how much finish it should take. If you reach the end of the room with a lot of finish left in the gallon, or run out early, your coat was too thick or too thin. Adjust on the next room, not the next job.

Once you add the crosslinker, mixed finish stays usable for about 8 hours. That is plenty for one job, but not for tomorrow.

Mix what the job needs. If you are not sure the last room will need a full gallon, wait to mix it until you get there. Leftover mixed finish has to harden in an open container before it is thrown out, and that is money in the trash.

Unopened, the finish has a 1-year shelf life. Every gallon has a 1-year shelf warranty.

Store it above freezing and below 95 degrees. Keep it inside, and never leave it in the truck overnight, in winter or summer.

Reorders ship to your door in cases of 4 gallons, the same product every time.