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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33 views

How can I provide effective access to a subdivided space below a non-structural floor?

One problem faced when finished spaces are built atop concrete slab floors (whether slab-on-grade/slab-as-basement-floor, or a suspended reinforced concrete structural slab floor) is "where do the ...
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1answer
643 views

Is This Wood Still Good? (Water Stained or Rotten)

I have an attachment on the side of my house, basically an enclosed porch but could also be a mudroom. One of the doors leads to a deck where the prior owners let the gutter downspout fall out of ...
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How to fix joist hangers where joist is not fully on seat of hanger

This is an old house and pictures show the framing and joists around a stairway opening. Compared to the “before” picture, you can see that the wood was removed from both sides of the double header. ...
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1answer
875 views

Joist hanger too low?

I'm in the process of replacing the joists in a room in my 100 year old house (original members were too far gone with termite damage to do sistering). Original joists were true 2x8s with a 12 foot ...
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3answers
629 views

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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How do I stop a rolling chair from rolling on a warped floor?

My floors are heavily warped. My desk and office chairs are in one of these warped areas. Since my office chair is on wheels that means it rolls down away from where I want it. How do I eliminate the ...
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2answers
1k views

How do I patch a subfloor over a return duct cavity

I need to patch these holes in the subfloor where the vents are. These holes are from a return vent that is being moved, the joist cavity below these holes is a return duct. I'm assuming using ...
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Is a tablespoon of vinegar and a cloth adequate to clean tiles with compiled soap, dirt residue?

What is a good product that can effectively clean tiles without damaging them? The type of tiles are floor tiles I think are ceramic based on this and are not shiny. I would like to clean them of ...
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2k views

Removing white layer which appears on floor after spilling water

I'm pretty careless and sometimes spill a bit of water on our floor. When I do, some strange white layer appears on the floor within a minute. I took some photos to demo. Usually it gets much much ...
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1answer
335 views

Building a raised platform fort

I want to build a 4m x 5m raised platform for my kids fort. It will be 2m high. I have a few questions: It is OK to attach the posts at the corners or will I need more in the middle? What do I ...
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6answers
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How should I prepare a plywood subfloor for floating vinyl plank flooring?

The floor of my laundry room was three layers of hideous vinyl flooring of various vintages, a layer of 3/4" plywood underlayment (to match the height of the vinyl to surrounding hardwood flooring) ...
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How heavy can my fireplace be?

Hello: I am a diy and am relocating a gas fireplace. It backs on an outside wall with one floor joist parallel to the wall under the fireplace. The joist is 2x10 x25ft. Beneath is a wall on an ...
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1answer
2k views

What to do about gap in bottom of plasterboard wall when fitting floating floor (UK)

I have removed the skirting boards in my new build house, as I am going to fit engineered wood floor via the floating method. The issue I have is that after removing the skirting, I was presented ...
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New hardwood floor crackles

It would be really great if someone could give me some advice on the following issue: Last year I bought a house and had a hardwood floor installed (solid hardwood, stapled on plywood over crawlspace)...
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Any ideas on how to keep a refrigerator from moving without wheel locks?

I've got a frig on a tile floor without any wheel locks, and it likes to slide forward every time I open a refrigerator door quickly. So far I have tried: toilet shims shoved under the wheels. ...
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1answer
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Why are boards replaced in a laminate floor duller than the others?

We recently had to replace several planks. We used what we had left over from the initial installation. Those boards are dull and I'm unable to get it to the same finish as the original. Any ideas ...
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2answers
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How do I stop the rubber sweep on my front door from squeaking as it moves against the floor?

The main door into my house has rubber at the base of it and it has started to squeak against the wooden floor when opened. How do I fix this problem?
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Heated flooring under subfloor

I'm trying to make the best of a bad situation here. New (old) house + slow drain + airhead teenage daughter = flooded 2nd floor bathroom. It flooded so bad that the ceiling in my entryway ...
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4answers
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What are these spongy/soft spots on my hardwood floor?

The house I recently bought has hardwood floors, but I've noticed that some spots are spongy when I walk over them. There is visible downward flex in certain spots to an observer of someone walking ...
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3answers
69 views

Are there any special tools, materials or techniques required for building a staircase door?

I have recently moved to a house that has a converted attic. It isn't a huge space but would make a reasonable den or man-cave were it not for the fact that the staircase cuts the room almost in half ...
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2answers
459 views

Water under shower floor caulk

Shower walls and floor are ceramic tile and caulked around bottom. That caulk keeps getting moldy fairly fast, so I removed caulk (this is second time in a few years) and was going to replace. I ...
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1920’s 2 story brick home sagging ceilings down the middle

I am not sure if I should sister joists for both the 1st floor ceiling and then the second story floor or can I jack up just the 1st floor ceiling and take care of it that way. Its a hip roof with no ...
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2answers
961 views

LVL Span Ratings and Beam Placement

I work with LVL beams frequently and see a lot of them placed under I-Joists to carry load of the floor. This is usually no big deal in 9' deep basements but in 8' basements an 11-7/8" triple LVL beam ...
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1answer
143 views

Subfloor tolerance for engineered hardwood

I am installing (floating) 3/8" engineered hardwood with 1/8" QuietWalk underlayment on a cement slab. I have used a grinder and leveling compound to remove the large valleys and hills. Now I have ...
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1answer
311 views

Spider-like / roots? mold?

We recently discovered our dishwasher was leaking under our flooring into the subfloor (formerly the floor - oak before the previous owner added pergo). We’re in the process of cleaning it up and see ...
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1answer
587 views

Proper subfloor for hardwood in a renovation

I'm doing some work on the 2nd floor of a 1955 cape. The subfloor is 3/4" tongue and groove planks and there are 3/4" (maybe 5/8") fir plywood sheets installed over that. The sheets are... odd... ...
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1answer
45 views

Peel & stick tiles for temporary floor covering over chip board?

We recently had a toilet tank crack. I caught it within two hours. stripped the carpet and foam underlay from the affected hallway, vacuumed up the water, and had a fan on the chip board all within ...
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2answers
123 views

Reinforcing concrete parapet?

One small section of our roof's parapet looks like this. We will be installing one 3/8" x 3" havy-duty concrete screw anchor in that area. The ideal solution is to remove and replace with new ...
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1answer
64 views

spa weight of 4,250 lbs

I have a pre-existing patio and would like to add a spa tub which weighs 4,250 lbs filled with water. Unknow is, re-enforced with re-bar? the exposed one side appears to be at least 18 inches thick. ...
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1answer
2k views

Orange material in grout lines - need help to identify

Having recently moved into a new (resale) house, I looked closely at the grout lines on one of the tiled shower floors and noticed many small gaps in the grout lines with an unidentified orange ...
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6answers
2k views

How to laser-level close to a surface

Many self-leveling lasers, including my Bosch GCL 2-160, have a limitation when used to level a ceiling or a floor: the horizontal laser beam often cannot get within several inches of the ceiling or ...
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1answer
75 views

How to close this wall

My house has a small "porch" near the main door. In many years I've been here, I never once used this area that is on the North side of the house as a porch. It tends to collect junk that I need to ...
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Uneven floors from settling rim joist

We're trying to fix the uneven floors in our 850 sqft, 80 year-old house in San Jose. Our contractor opened up the floors and the problem appears to be that the floor joists rest on a skid, while the ...
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4answers
55k views

How do I meet the 7 feet high ceiling requirement after finishing the basement?

My basement ceiling joists are exactly 7 feet above the concrete slab. The requirement for finished living space is 7 ft from the finished floor to the finished ceiling. Since I'll loose a couple of ...
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3answers
284 views

Concrete or mud pad below two layers of tile in bathroom. Not sure what it is and whether to demo it?

I recently started renovating one of our bathrooms. After removing a few tiles there was a second layer of tile beneath. Below the second set was a concrete/mortar base that is ~1.5 inches thick and ...
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3answers
21k views

What can I do about mild water/moisture damage to laminate wooden flooring?

Yesterday, I accidentally left the window open while it was raining heavily. Some rain poured in for a while (maybe a half-hour or so) before I noticed. After I had wiped off the floor, some dark ...
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Domed concrete floor (garage) needs leveling

I am about to replace a 14ft wide garage door. The concrete floor is domed in the centre of the doors width. The mid section of floor is roughly level for about 6 feet wide but falls away each side ...
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4answers
5k views

How can I repair this small hole in my basement floor?

Last summer I noticed water coming up from my basement, always in the same spot. The rest of the basement is bone dry and we have french drains so I was baffled. This winter, I tore up the tile that ...
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1answer
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Q: What is the safest way to clean soiled concrete for tiling in a small kitchen?

I'm planning on tiling my kitchen floor which is bare concrete. However, I did a water test on the concrete and it's soiled to the point that water beads up on the surface. The floor most likely needs ...
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3answers
677 views

Small geyser coming out of the basement floor

My house is 40 years old. I have had basement flooding issues for years. With heavy rain, water comes out of my floors. I have a sump pump that takes care of it. Despite knowing better, Ive been able ...
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5answers
40k views

What is the easiest way to stop a door from catching on the floor?

When I open and close my bathroom door, it catches on the floor. This makes it hard to open and close it, and also makes a really annoying sound. What is the easiest way to stop the door from ...
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1answer
4k views

Cutting already installed tile?

I am planning on installing floating laminate flooring in my hallway among other places in my house. I wanted to take out the tile on the outside of this small bathroom and I wanted to wait to replace ...
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1answer
238 views

What STAINABLE wood fill is best to use on a plywood floor? [closed]

I am doing a quick fix on an existing plywood, unfinished floor. I need to fill the gaps between boards before staining, then applying polyurethane. I have plenty of Minwax Stainable Wood Filler to ...
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1answer
405 views

Leveling the sagging side of the home

I am buying a home and one part of the home is actually visibly sagging. While looking at the crawlspace, I've noticed that some work was done to support the home. It seems like there is no new ...
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2answers
173 views

New construction subfloor unlevel

So noticed my floor is unlevel in a new construction house. It is only sinking at the 2x4. Is in lake county Indiana. I look in the basement and see at the subfloor seam it did not hit the joist so ...
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11answers
15k views

Is this cracking foundation under a jack post a problem that requires repair?

I am buying an already-built new home. I find this in the basement. The builder says it's okay, but I am really concerned. Is this really a big issue? What steps would be required to repair it? This ...
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3answers
2k views

Heating basement floor with water heater

Can I simply add a loop of pex from my water heater, under my flooring, and back into itself? Would I need some sort of pump? I haven't laid the tile yet and water heater is right on the outside wall ...
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787 views

What is the recommended technique for refinishing hardwood floors?

I have old hardwood floors in my home that I'd like to refinish myself. I'm ok with all sorts of manual labor, but I'd like to know the preferred method for refinishing them without damaging my walls ...
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1answer
51 views

Will using a paint or sealer on a concrete floor damage it?

I live in a 1st floor flat (relatively new build) that has concrete underneath the carpet. I'd like to remove the carpet and treat the concrete and have concrete floor. The floor seems pretty solid ...
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Do I need to remove the adhesive from peel & stick vinyl when putting hardwood with rosin paper?

I am removing peel and stick vinyl from plywood and will be putting nailed 3/4 in hardwood in its place. Do I need to get all of the adhesive up or is it ok to just put my rosin paper or other ...

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