Caring for a newly sanded wooden floor

When we deliver a newly sanded floor, the customer always receives the same message: the result only lasts if you take care of the floor from day one. The first few weeks after a professional floor sanding determine whether the treatment binds properly and lasts for many years, or if it wears down long before its time. Here are the tips we give our customers when we pack up our machines.

Why is a newly sanded floor vulnerable?

Sanding removes the old finish and exposes the wood before a new treatment is applied. The surface may feel dry before it has fully cured. During that period, furniture, water and heavy use can leave marks, so follow the care instructions for the actual product used.

Drying and curing times vary by product, temperature and humidity. Some finishes allow light use after 24 to 48 hours but need longer before furniture, rugs or washing. A lye-treated floor follows the instructions for its final soap or oil treatment. For help choosing a finish, see our comparison of lacquer or oil. The rule of thumb is the same for all products: gentle use at first, then gradually increase.

The first 48-72 hours: stay off the floor

Immediately after treatment, the floor needs peace. Stay completely off it for the first 24 hours, and avoid heavy loads for the next two to three days. This may sound overly cautious, but it is during these hours that the treatment binds to the wood. If something goes wrong here, the damage cannot be polished away afterwards.

• Keep water away. Water is the worst enemy during the curing period. If you spill, wipe it up immediately and let floor washing wait until after the first few days.
• Wait with furniture. Heavy furniture and chairs with hard legs will leave marks on a surface that has not fully cured. Only move in after the first few days have passed.
• No hard soles. High heels and shoes with stiff soles create point pressure that can press permanent marks into the soft treatment. Walk in socks or indoor shoes.
• Ventilate well. Ventilate as the finish manufacturer recommends to help moisture and odour disperse. Avoid disrupting the application with strong draughts.

Weeks one to four: use the floor, but with care

After the first few days, you can move back in. Place felt pads under all furniture legs before anything touches the floor. The sofa, dining table, chairs, shelves. Felt pads cost almost nothing and are the cheapest insurance against scratches you can buy. Leave them on permanently, not just during the curing period, and replace them when they are worn flat.

If you have a dog or cat, clip their claws, or keep the animals out of the room for the first few weeks. Long claws easily scratch a surface that has not fully cured, and those marks will remain.

Sweep or vacuum regularly. Sand and grit under shoes act like sandpaper and wear down the treatment much faster than normal walking in socks. A solid mat at the front door catches most of it before it reaches the floor, and this is one of those habits that can really be seen on the floor in five years.

How to clean without causing damage

Cleaning is where we see the most damage to newly sanded floors, and that kind of damage is difficult to repair. The most important rule is simple: a wooden floor cannot tolerate standing water. If water penetrates the wood, it can cause the boards to swell and lift the treatment from below.

For daily cleaning, a dry microfibre mop or a vacuum cleaner with a soft brush nozzle is sufficient. If you want to wash the floor, wring the mop out thoroughly. It should not drip, and the floor should be dry again after a couple of minutes. Only use products that are suitable for the treatment your floor has received. Oiled floors should use soap-based products that also nourish the wood, while lacquered floors can manage with a neutral floor cleaner. And leave the steam cleaner in the cupboard. Steam forces moisture into the wood and is too aggressive for all types of treatment, even fully cured lacquer.

Oiled and lye-treated floors require more from you

Lacquer forms a protective film. Oil penetrates the wood and needs periodic maintenance. Lye is a pre-treatment rather than protection on its own, so care depends on whether it is followed by soap or oil.

For the first year, most manufacturers recommend that an oiled floor receives maintenance oil two to three times. A treatment in the autumn and one in the spring is a good rhythm for most homes. The purpose is to keep the wood saturated so that it resists daily wear and moisture. Lye-treated floors should be cared for according to the same principle, using the products that belong to the treatment.

Look out for light or whitish spots. These are usually signs that the wood is becoming dry and needs oil. Take a cloth and some maintenance oil, and treat the small area immediately. It takes ten minutes and is much easier than waiting until the spot has spread over half the living room.

Four habits that protect the floor in everyday life

• Lift furniture when moving it around. Pushing and dragging are behind most of the deep scratches we see at customers' homes.
• Place a chair mat under your office chair. Chair wheels are one of the harshest things a wooden floor is exposed to in a normal home.
• Keep mats at all exterior doors. The less sand and grit inside, the slower the surface wears down.
• Check felt pads a couple of times a year. They fall off and collect grit, and a felt pad with a grain of grit scratches worse than nothing.

How long does the result last?

With normal use and sensible care, a sanding and treatment typically lasts eight to twelve years. The range is wide because traffic makes all the difference. The hallway in a family with children wears many times faster than a bedroom where people mostly walk in socks. If the floor one day reaches a point where the surface is dull and grey and cannot be refreshed, we have written a guide on when a wooden floor needs sanding, so you can assess if the time is right. The sooner a professional looks at it, the less of the wood's thickness needs to be sanded off.

Should we take a look at your floor?

If you are unsure how to care for your newly sanded floor, or if the floor needs new sanding and treatment, please call us at 20 98 88 11. We will inspect the floor and provide a fixed price before we start, and you will receive a response within 24 hours.

Frequently Asked Questions

When can I wash a newly sanded floor?

Wait until the finish manufacturer permits washing. Drying and curing times differ between products, so the first 48 to 72 hours are not a universal clearance to use water. Until washing is allowed, use a dry mop or soft vacuum attachment. Afterwards, use a well-wrung mop and a cleaner suitable for the finish.

How long does it take for lacquer to cure?

The product instructions give the actual curing time. A lacquer may allow light use after 24 to 48 hours while still needing longer before heavy furniture, rugs or washing. Temperature, humidity and coat thickness matter. Oil finishes have their own drying and curing requirements.

Should an oiled floor be treated again in the first year?

Yes. Most manufacturers recommend maintenance oil two to three times in the first year, for example, once in the spring and once in the autumn. Always follow the instructions for the oil used on your floor.

What do I do about scratches on a newly sanded floor?

Superficial scratches on an oiled floor can often be repaired locally with maintenance oil and a cloth. Deeper scratches in lacquer require local sanding and new treatment of the area. If the scratch has penetrated into the wood itself, a full or partial sanding is required.

Do you live in Aarhus or Copenhagen? See our local pages on floor sanding in Aarhus and floor sanding in Copenhagen with price examples and references from your area.