How To Fix Wood Floor Cupping?

Jul 9, 2024
How To Fix Wood Floor Cupping?

You have a stunning hardwood floor in your house. However, something doesn’t feel or look right. Perhaps there are ripples, or the floor appears “wavy.” Certain floor planks have thin, raised ridges running along their edges.

What’s that? And can it be fixed? It’s nothing but the wood floor cupping. In this blog, we will understand what it is and how we can fix wood floor cupping with some easy steps. So, hold on and keep reading this blog post.

What Is Wood Floor Cupping?

What Is Wood Floor Cupping?

A moisture imbalance rises from the floor’s bottom to its top, causing each plank to take on a concave shape with noticeably elevated edges. This imbalance is known as wood floor cupping. Changes in moisture levels, whether from rising moisture from below the floor or falling relative humidity in the air above, are what induce cupping in hardwood floors. So, let’s understand how to fix it.

5 Steps To Fix Wood Floor Cupping

Cupping phenomenon can be fixed with a proactive procedure that follows five simple steps. Here is an effective and easy way to fix cupping on wooden floors.

Step 1: Measure The Moisture Level

Measure The Moisture Level

Use a trustworthy wood moisture meter to find wet problem areas or gauge how much the wood moisture content has increased. It will help you determine the scale of the problem that arises.

Step 2: Determine The Source Of Moisture

As previously said, is the cupping consistent and seasonal? Does it only happen in one place? Is the floor relatively new, or is the moisture level in your basement or crawlspace higher than in your living area? Or is it because of the leaks in the subfloor that requires water-damaged wood floors to be restored?

Step 3: Dehumidify The Floor

Dehumidify The Floor

Now that you have identified the scale and type of issue, it’s time to address it. The only solution is to dry the surface from moisture. You might need to run a humidifier occasionally if you live somewhere with muggy summers. But if the floor is in a moist condition, you need to run the humidifier much more often and maintain a constant and controlled environment in your house.

Step 4: Maintain Dry Atmosphere

Once you have dried the floor and the moisture in the room, it’s time to maintain the constant dry atmosphere using a dehumidifier, as moisture can lead to further cupping of your wood floor.

Step 5: Get Professional Help

Even though you try drying the wooden floor on your own, some moisture remains, and the possibilities are that the cupped floor stays upfront. So, always rely on a professional wood floor repair expert to help you fix common wood floor problems, including cupping.

Tips To Avoid Wooden Floors Cupping

Allow wood to become used to regular living conditions in your home before installing.
Always wipe up spills on flooring right away.
Avoid damp mopping wood floors.
Keep an eye on the home’s moisture levels and maintain their consistency.
Verify with the installers that the subfloor has an appropriate moisture barrier installed.
Do not sand down a floor that’s cupping.

Call Us To Fix Cupped Wood Floor

Reducing the moisture level with a dehumidifier can naturally allow a cupped wood floor to come back to its original state in most cases. But if they don’t return to their normal state even after humidity stabilises, it could be a sign of a severe problem needing expert attention. Wood floor repair experts can assess the actual issue and help you fix your floors

At Sanding Wood Floors, we offer expert wood floor maintenance and repair services and can help you fix the cupped floor. Our team uses advanced techniques and effective tools to rediscover the wooden floor’s aesthetic beauty. We are just a call away to fix your wooden floor.


Q.1 Will Cupped Wood Floors Go Back To Normal?

Seasonal changes in humidity lead to typical alterations in cupping, which will naturally resolve as the seasons change.

Q.2 Does Wood Cupping Go Away?

For a solid floor, the first cupping will go away as the flooring adjusts to the area, and gapping will become a problem with the completed floor. In this instance, letting the flooring go through a full heating season should resolve the cupping because the heating will eliminate the high moisture and cause the flooring to flatten.

Q.3 How Do You Prevent Wood Cupping?

Maintaining a steady temperature in the space helps prevent the moisture differential that leads to cupping on wood floors.

Q.4 What Causes Cupping On Wood Floors?

A moisture imbalance in the flooring is the reason behind hardwood floor cupping. This phenomenon occurs when a wood floor absorbs more moisture on one side of the boards, causing the boards to swell and seem raised on the outside while remaining flat in the middle.

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