Q: I had an old 50+ year wood floor that was upstairs in
Cupping
All our Q&A on cupping in wood floors, the causes and solutions.
Rushed new floor is cupping
Q: Last December ’16 we had a new subfloor and 3/4in oak floors installed in our dining room, to replace a floor that had buckled. Also in 2 bedrooms we removed carpet to find oak floors there too. We had a few boards replaced because they had been pulled up in the closets during previous remodel.
Small section of new floor cupping after one month
Q: I have a brand new hardwood floor. Oak. I have a small 16″x16″ section cupping after one month. The installer told me it was due to humidity, but it only occurred in that one small spot throughout the whole condo. Could it be installed wrong in that one spot? Or sealed while there was moisture underneath?
Can water popping cause cupping?
Q: Can water popping cause cupping? Out Southern pine floors were installed and sanded. Then they water popped the floor to apply stain, which ended up looking very good. Sadly the floors looked cupped almost right after the finish was done.
Glaze applied to floor causing cupping?
Q: I had my 75 year old hardwood oak floors re-glazed with —– by a company about a year or so ago. They are cupping pretty badly. Since there are rooms that weren’t refinished by them that aren’t cupping, I assume the company created the problem.
Floor both cupping and gapping
Q: I have 2 year old maple 3/4 inch floor with varying widths. It has had cupping in some areas and ugly cracks between the wider boards.
Hardwood floor in basement cupping
Q: My basement was finished by the previous owners about 30 years ago, and they put down hardwood floors, possibly directly on the concrete. The boards have bowed up in a large section in the center of the floor, and you can bounce on them.
Hickory floor cupping
Q: When I moved into my house 1 1/2 years ago I had carpet and ceramic floors removed and new hickory prefinished hardwood put in my entire downstairs. Almost immediately my floors started cupping, some areas are raised and some have vertical cracks in the wood. You can feel when you walk over and it’s on over 50% of floor.
More likely a wider board will cup?
Q: Can one expect that 3 1/4 oak flooring will be just as stable as 2 1/4 oak flooring? Is there more of a tendency for the wider board to cup over time?
My hardwood is in a convex shape (cupping vs crowing)
Q: My hardwood is in a convex shape; meaning, the two sides of the wood are up, but the middle part is down. A “C” shape. What is going on and how can I fix it?