Questions tagged [floor]

For questions generally relating to the structure and construction of floors in buildings, including designs, materials, support mechanisms, load-bearing calculations, etc. For questions specifically about the top-layer covering of a floor (tile, carpet, hardwood) see the "flooring" tag.

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Floor heat cables under linoleum flooring?

everyone. Is it possible to lay heat cables on a bathroom floor before I lay down linoleum. We would like to help create some warmth in the winter. Given our current situation I don't think it's ...
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1answer
383 views

Is this mold, mildew or just dirt?

We just removed some molding from our floor only to reveal some kind of black substance that looks like dirt. We are not sure what it is. See the following photograph.
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1answer
143 views

Need help leveling part of a floor

We had an 8 foot square hottub in our bedroom for 10+ years. Because of the weight, the floor has sagged in that section. The tub is gone now and we had carpeted around it, but now there is a big ...
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1answer
107 views

Load Bearing or Not How Can I Know For Sure

We have an unusual 3 inch thick poured concrete floor in a steel mesh in the ground floor of our house, under this is a basement like area with an old riveted steel across half of it and a couple of ...
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1answer
90 views

How much heat can be saved by insulating under the floor? [closed]

How much heat can be saved by insulating under the floor, in the crawl area of my house?
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1answer
2k views

Should I triple up 2x6, or 2x8 to help level a floor? [closed]

I want to level my first floor dining room. The joists supporting the floor is 2x8", 13' long on that side of the main support beam. They are spaced between 16 to 19" apart, there was some moisture ...
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1answer
69 views

House floors I can feel the cat walk across while sitting in a chair [duplicate]

I wrote earlier I can feel the cat walk across the floor-- while sitting in the sofa chair this has increased over the a short period of time. The cat weighs 7 lbs. This is the only house I have ...
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1answer
565 views

How long can I run a joist without supporting it in the middle?

I am building a tree house with a bridge from one tree to another. What is the maximum distance I could run a joist for the bridge without supporting it in the middle?