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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Stain not drying on hardwoods

We’re staining our sanded hardwood floors with a Minwax oil based stain. We were staining our floors without heat in the house, while it was cooler and damp outside. It’s been almost 24 hours with our ...
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Can floor joists be fastened directly to beams secured on sonotube piers with U-brackets [duplicate]

Let's say we have as the "foundation" for an oblong shed two rows of sonotube piers with U-brackets, and two wooden beams 6"x6" by 20' long bolted into the brackets, one beam on ...
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How to create a sloped floor for drainage on existing flat level floor joists?

I'm building a traditional outdoor wood-fired sauna cabin. The traditional Finnish ways to build drainage is either gaps in the wood floor to allow direct drainage to the ground, or sloped floors into ...
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1 answer
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Stains on an oiled wood floor

I'm my kitchen I have a floor made of oil treated wood. I do not know the type of wood as it's not clear from the manufacturers info that I have. I also did not buy or install it myself as this is a ...
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How to rebuild door threshold when using self leveler to outside door

I am pouring self leveler before putting in new floors. I have to raise the floor 1 inch. How should I rebuild the threshold of the outside door? I thought to just use self leveler all the way to the ...
2 votes
1 answer
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What is this ledge on the closet floor?

Some but not all of the closets in my home have this ledge taking up approximately half of the floor. It's about 4 3/8" high. Does it serve a function? The house is circa 1956.
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1 answer
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Carpet Replacement Questions

We are having some carpet replaced and have questions: 1. What is this block in the closet? The bedroom where this is being replaced has some weird issues. One is a piece of wooden blocking in the ...
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1 answer
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Resealing old wood floors without sanding as a temporary fix?

I recently bought a 1917 house with all original hardwood floors. I refinished the maple floors upstairs and they look great. Unfortunately the oak floors downstairs are utterly unsalvageable. The ...
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1 answer
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Help! I need to fix leaky cracks in basement floor

I live in 130-year-old house with a stone walled basement. The basement walls don't currently leak, but I have some floor cracks that have started to leak a lot when there's a heavy rain. Some of the ...
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Repairing Shower Floor

I have limited experience with shower repairs. Recently, I've noticed that the grout/sealant between the tiles on my shower floor has begun to peel off, and I can see water seeping between the tiles. ...
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3 answers
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Will this arrangement of bricks be a good base for a concrete floor for a garden shed?

I am building a 6ft x 4ft garden shed which will have a concrete base. I've levelled some ground, built a frame, and made a floor out of old bricks. The ground is fairly clay-heavy. I've been ...
2 votes
2 answers
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How to know if timbers supporting floor need work?

Pictured is the ceiling beneath our first floor (second floor US). It's an old stone farmhouse, and there's no telling how long those supporting beams have been there (it could be 150 years or more). ...
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Fill up gap around the new OSB subfloor patch

I need to patch the subfloor after moving the plumbing from under the floor to the wall, in the bathroom. To support the new OSB patch, I've added floating 2x4s and now plan to put the board down with ...
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Floating floors have soft spots and bubbling - Pulte

https://imgur.com/a/HHlTYmA I got a new build and it has been a headache. The floors had soft spots and bubbles and I finally got the builders to replace the flooring but it's even worst than before. ...
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How can I prevent basement slab moisture from causing mold in flooring?

I live in a residential community built in the late 80s. I believe no vapor barrier was put under the concrete because when we switched from carpet to wood floors mold starting coming through after a ...
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How to fix a bump over central main beam and level floor?

I reside in a 1950s-era bungalow. In its basement lies a wood beam, connecting and upholding the joists (2x10) through a 2x4 ledger that's been nailed in place. The structural walls on the main floor ...
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1 answer
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How to remove this type of stain from marble/stone floor?

In reference to the photo, these are stains I spotted when looking directly under light right beside my bath mat. Its also very close to my toilet. I'm not sure if there stains due to heavy water or ...
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2 answers
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Advice on replacing loud and dangerous metal pieces on balcony

I need some advice on how to remove these metal pieces and what I should replace them with. The problem with the metal is it's very loud when I step on it and are so thick they're a tripping hazard. ...
3 votes
1 answer
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Who do I call for mold and rotting wood floor problem from a bad sealing at the balcony?

We have been moved into this house for three years (2017 build) and we slowly had some blackish bownish mold grow on side of the carpet and wall where the juliet balcony is. Because the issue didn’t ...
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4 answers
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What should base kitchen cabinets sit on top of? Why? Why not?

We are renovating our kitchen. We are ripping up the existing tiled floor. We are going to be installing IKEA cabinets. Should I install the cabinets on top of the subfloor? Or should I install the ...
5 votes
2 answers
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Would using glue between the joists and sheathing increase rigidity of the floor?

Consider a standalone, 4 post, 7' high deck, with joists 12" on center, with OSB subfloor sheathing fastened with screws. Would using glue between the joists and sheathing increase rigidity of ...
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1 answer
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Why is my floor heat furnace cycling off after a short time? [closed]

The setup: The system is a 2-zone system. A. Zone 1 heats the garage floor B. Zone 2 heats the main living quarters upstairs The water is heated by a Takagi Tk-2 tankless water heater. The controller ...
2 votes
6 answers
57k views

Hardie Board Subfloor—Thinset or No?

I'm remodeling the bathroom in my house that was built in the 1930s. I stripped out the old flooring down to the 1x8 wood planks (about 1/4" between each). I have 1/4" Hardie Board to put down in ...
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What should I do with corroded heating pipes that were previously under concrete and which I'm about to re-concrete and board over?

I have two copper pipes that were lagged in fiberglass wool and concreted over and which I'm about to re-lag with a plastic pipe then re-concrete and lay laminate flooring on top. The pipes themselves ...
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How can I fix a hole (acid burn) in Vinyl floor (Bathroom) [duplicate]

I'm seeking advice on repairing a small, circular hole in a semi-soft vinyl floor located in my bathroom. While the damage is noticeable, it's relatively shallow, measuring less than 1mm deep. I'm ...
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Leveling second story bedroom floor

I've owned this house for 12 years and it's had this problem since we bought it. There had been some foundation settling in one corner, that has since been stabilized with poly foam injection, but ...
5 votes
4 answers
37k views

how to repair large, uneven crack in concrete floor

I have a really long (about 20') uneven crack in my cement garage floor. Not only is it jagged, but the sides of the crack range from flat to about 1/2" high. I want to level the sides of the crack, ...
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1 answer
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How can I level an existing vinyl sunroom?

A vinyl sunroom was built onto my home over an existing backyard cement slab. The slab had a slope, and so the sunroom has a slope to it. I am trying to figure out a way to level it out now. Furniture ...
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2 answers
22k views

Cheapest way to level large concrete floor without losing height

I have an old building that I am converting into a living space. The slab foundation is very old and uneven in a lot of spots. I need to level it, but I can't increase the height of the floors too ...
5 votes
3 answers
31k views

Can my floor hold 2100 lbs of dead load?

I'll admit I don't get how to compute how much my floor can hold, and probably wouldn't trust my own math, even if I came up with the right answer. I'm looking to purchase a recording booth. I do ...
3 votes
1 answer
334 views

What are the hard bumps/lumps on my shower floor?

I noticed about 5 or 6 hard bumps/lumps in the shower floor today while cleaning. The last time I got down on the floor and deep cleaned was about 3 months ago and did not notice them at the time. We ...
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1 answer
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Is there a drawback to underlayment between multiple layers of subfloor?

My upstairs sub flooring is 5/8" plywood, which is screwed to the joists. I want to add an additional 3/8" layer of plywood, followed by floating 1/2" bamboo flooring. I plan on using a ...
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Can a 1950s floor furnace be removed from below (crawl space)? [closed]

Recently demo-ed hallway desk revealed abandoned 1950s floor heater. Living room side had been patched over, hallway side has floor heater exposed. Is it possible to remove the furnace from below in ...
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5 answers
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What finish can I put on my pallet floor to fill cracks?

What finish can I put on my pallet floor to fill in cracks and have an even, thick top coating?
6 votes
3 answers
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How do I repair a floor joist which has a hole drilled less than 2 inches from the bottom?

I have three floor joists that have approximately 1/2 inch hole in them less than 2 inches from the bottom. Is there a recommended fix or approved method to correct this to meet code? These joists ...
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1 answer
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Floor Beam Supports

Home inspector noticed that this floor beam doesn’t have proper column supports. This is part of an addition and it looks like the builder put scrap wood in as makeshift columns. Is this as simple as ...
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4 answers
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Can anyone tell if this floor joist damage was from termites or wood rot?

Just discovered this damage in the crawlspace under the sagging floor by the front door. Had new insulation, vapor barrier and dehumidifier added about a year ago.
3 votes
1 answer
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to address a hump in hardwood floor or not [closed]

Our house is 100 years old and the 2nd floor was carpeted. The carpet was worn out and I pulled it up to find hardwood floors (I did the hall and main bedroom so far). Realizing I have to refinish ...
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1 answer
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Does tar need to be removed from concrete before an overlay is poured?

We're doing a 1 3/4” concrete leveling layer over an existing slab as prep for LVP flooring. Does the tar need to be removed completely for new concrete to bond? And do I need to seal existing cracks ...
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2 answers
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Could a new roof type exacerbate basement floor cracking?

I have been concerned on cracks in my concrete basement floor. Home is 15 years old and always had one crack in the floor leading from the walkout basement door to about the center of the basement. ...
1 vote
2 answers
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Will floor bend/sag over time under the weight of my desk?

For context, I'm a musician. I have a large workstation desk that, when outfitted with all my equipment, clocks in at 219 pounds. (I could probably get that down to maybe 205). The legs/feet are oddly ...
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3 answers
124 views

Transitioning Strip Cork to Tile

I haven't come across any instructions on how to install a transitioning strip on cork and additionally in the awkward no-gap/multi-height situation this floor is in with the silicone and all. As a ...
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Wondering about the need for a vapor barrier

My home is on a slab. There is a vapor barrier under the concrete. One bedroom is about 18 inches lower than the remainder of the rooms (the original owner/builder designed it that way). I am ...
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How to repair grout detaching from bathroom floor/shower base junction

I recently bought a condo and noticed that the grout between the bathroom floor and the shower is detaching from the tiles and shower base (see photos). I'm wondering what is the best way to repair ...
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River rock shower floor grout cracking

Have river rock shower floor in the master bath. About a year ago noticed some cracks in the grout around the rocks. I contacted the home manufacturer and they advised to regrout over the existing ...
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1 answer
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Adding support for subfloor

Im replacing the subfloor in a 2nd floor bathroom of a 1920s house. It was level and in decent shape, but covered with adhesive and backer board for tile so replacing it seemed the easier option. ...
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2 answers
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Possible to regrout floor to change its color?

The grout is not the color I want. It turned midnight blue and I want charcoal grey or black. I was at work when the workers grouted the floor. Can we grout with darker color over this blue and it ...
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1 answer
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Need help - temporary 'reinforcement' for bending wood floorboard

I am going to have someone come out to check out this floorboard (and the rest of the floors), but in the meantime I'm super anxious I might step on this board and break it. The issue: I live in a ...
5 votes
4 answers
9k views

Soundproofing a floor: How about cement backer board w/ Green Glue and mass-loaded vinyl?

I've been researching soundproof underlayments for floors, but the selection seems to be very paltry. It appears that you're pretty much stuck with mass-loaded vinyl (MLV), QuietWood, and a few other ...
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Need recommendations for how to approach fireplace marble floor slab replacement

I have a green marble slab in the floor in front of my fireplace (appx. 60"x24") that I've hated since I moved into my condo. It's really the color - I dislike the green, and wish this were ...

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