How much can a floor deflect?
The wall enclosing the refrigerator/freezer has been removed. The studs had about 2mm of space above and below. There was a 9mm particle board holding the studs in place. The refrigerator/freezer has been turned 90 degrees counter-clockwise so that they are along the remaining wall.
The floor in the front, between the refrigerator/freezer, now deflects 5mm, causing the units to lean beautifully towards each other. There was a depression there even before the new refrigerator/freezer was installed. The area is in the middle of the previous placement of the refrigerator/freezer.
I have also measured the studs in the crawl space, and surprisingly, there is a stud right across the depression +/- 10cm.
The floor consists of Kährs-Linneá, beneath it 18mm particle board, studs, insulation, and a crawl space.
How much can a floor or a stud deflect?
Is there something that needs to be addressed?
The wall enclosing the refrigerator/freezer has been removed. The studs had about 2mm of space above and below. There was a 9mm particle board holding the studs in place. The refrigerator/freezer has been turned 90 degrees counter-clockwise so that they are along the remaining wall.
The floor in the front, between the refrigerator/freezer, now deflects 5mm, causing the units to lean beautifully towards each other. There was a depression there even before the new refrigerator/freezer was installed. The area is in the middle of the previous placement of the refrigerator/freezer.
I have also measured the studs in the crawl space, and surprisingly, there is a stud right across the depression +/- 10cm.
The floor consists of Kährs-Linneá, beneath it 18mm particle board, studs, insulation, and a crawl space.
How much can a floor or a stud deflect?
Is there something that needs to be addressed?
Last edited:
Hello,
I think you are in the wrong part of the forum to get an answer to this question.
To begin with, I guess you are mixing up 'svikt' with 'svacka'? 'Svikt' is when the floor temporarily bows down under load. There are some regulations for how much a floor is allowed to "flex," but I can't remember off the top of my head. A 'svacka' doesn't necessarily need to be addressed; however, it might be wise to consider why it appeared. I believe you don't need to worry about as little as 5mm. It could be as simple as the beam underneath having dried a bit more than the ones next to it.
As I write this, I think I understand more what you mean. You might have a 'svacka' in your subfloor with a parquet floor on top that flexes in the 'svacka'. That 'svacka' should ideally have been addressed before the parquet floor was laid!
I think you are in the wrong part of the forum to get an answer to this question.
To begin with, I guess you are mixing up 'svikt' with 'svacka'? 'Svikt' is when the floor temporarily bows down under load. There are some regulations for how much a floor is allowed to "flex," but I can't remember off the top of my head. A 'svacka' doesn't necessarily need to be addressed; however, it might be wise to consider why it appeared. I believe you don't need to worry about as little as 5mm. It could be as simple as the beam underneath having dried a bit more than the ones next to it.
As I write this, I think I understand more what you mean. You might have a 'svacka' in your subfloor with a parquet floor on top that flexes in the 'svacka'. That 'svacka' should ideally have been addressed before the parquet floor was laid!
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· Västra götaland
· 118 posts
If you can get down into the crawl space, I would consider propping up that specific board that is under the sag and trying to press it up to level, if possible.
If it's possible, remember a capillary-breaking layer under the support.
If it's possible, remember a capillary-breaking layer under the support.
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