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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4 answers
71 views

Floor Joists Knot

I have a floor joist where the knot in the middle of the span is somewhat coming out. Attached is a picture. Should I be worried and how do I fix it?
1 vote
1 answer
27 views

Removing ceramic tile (non-asbestos) on top of subfloor and some black mastic (asbestos)

In middle of 1/2 bath remodel in 1970 home. Prev owner had remodeled bathroom 10+ yrs ago. That contractor left orig vanity in place but cut and removed vinyl tiles around vanity and laid ceramic ...
2 votes
1 answer
25 views

"touching up" a hardwood floor

We have hardwood floors and I'm unsure how they were finished. I tested by rubbing acetone on them and nothing came up. According to internet sources that may be an oil based polyurethane. But the ...
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1 vote
1 answer
71 views

Hole/Notch in Floor joist

I have a floor joist that is notched about 7 inches away from the bottom plate. The joist is a 2x8 (7 1/4) The hole is about 2.25 inches so I added a sister joist and the hole in that is probably 1.8 ...
2 votes
1 answer
87 views

Can these floors be restored?

I’m interested in purchasing an older home and the home I’m mostly interested in has its original hardwood floors but the kitchen shows some damage. I imagine they’re water damaged. The stains are ...
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1 vote
3 answers
109 views

What's the most painless way to fix a lot of small holes on the wooden floor

For some really stupid reason, I accidentally punched a lot of small holes on my wooden floor. See attached photo. That's a roughly 3 feet by 3 feet area with a lot of small, but shallow holes. My ...
1 vote
3 answers
75 views

Nail or screw new plywood on top of old?

There are two different situations. In living room I want to raise the floor (is a step-down living room, and too big a step) by ~2" so I'll put down furring strips and then 5/8" plywood, ...
0 votes
3 answers
74 views

Is a gap between walls and floor due to settling?

There is an addition to the back of the house we recently purchased (5 months ago). We have noticed gaps appearing between the old back ending of the house and the walls of the addition. Then we ...
0 votes
1 answer
57 views

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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0 votes
2 answers
52 views

How to replace wood plank flooring? [closed]

I have plank wood flooring (not real wood, the snap together type). There is a piece that needs replaced and the problem is that it's not an edge piece. Is there a way to replace it without having to ...
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1 vote
3 answers
119 views

How to determine necessity of leveling a floor?

Situation: We have a seriously sloped floor, lowest points are in the far corners of an external wall of what appears to be a newer (~30 years) addition on a much older home (1945). The inside ...
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2 votes
1 answer
179 views

Are my screws too deep in the OSB?

Replacing rotted plywood with OSB - I fear I have made a grave error. The OSB is 23/32 (3/4 inch) and I have used the GRK #8 2inch screws to secure the OSB to the joists. I have sunk the screws about ....
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0 votes
1 answer
28 views

flooring cover near shower

I have a fiberglass shower, and the image below shows a slight tilt in the floor covering; likely due to water. Can I use something like a Silicone tape? I want to make sure that the water doesn't get ...
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0 votes
1 answer
31 views

Concrete floor/slab sealing

I would like to have someone seal my concrete floor without grinding or etching. Can this be done?
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0 votes
1 answer
45 views

Floor leveling or flattening across addon with slope

I have a 420 square foot room that I'd like to install hardwood flooring. Half of the room is an addition and where the addition starts, the floor starts to slope down to about 1 inch on the far side. ...
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1 vote
2 answers
39 views

Floor tile not perfectly flat, chair would rock on it, is this normal?

I recently tiled my bathroom floor with 12" x 24" tile. I used 1/2" square trowel with thinset for large format tile, and also used leveling clips. As this is what most DIY tutorial ...
0 votes
0 answers
32 views

How do you level-out unlevel plywood subflooring?

On concrete floors you can pour self-leveling cement to fill valleys. How do you fill valleys on plywood sub-flooring?
0 votes
0 answers
27 views

What's the best way to clean marbonite tiles

I have installed the white marbonite tiles floor tiles which is quite shiny or reflective. Recently painters used spray gun to make the door frames, doors shiny but as a result of that the tiles ...
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1 vote
2 answers
37 views

Tile over dyed concrete floors

We are remodeling and looking to install tile flooring over concrete floors. The question we have and can’t seem to find any information is will the mortar stick to the dyed concrete floors? For some ...
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1 vote
3 answers
74 views

How can I repair a puncture in a fiberglass shower floor?

I have a hole in my shower floor, and I would like to use some sort of resin to cover the hole. Would you recommend me a solution (off the shelves product) that I can use on this hole?
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0 votes
2 answers
89 views

How would I fix this patch so that the hardwood looks consistent?

Going to need some guidance on how I could replace this patch so that the hardwood goes throughout
1 vote
0 answers
37 views

Does the white cement between tiles absorb water

Our roof is covered with white color cooling tiles and we have cemented the gaps between the Tiles with white cement. Whenever the tank in the terrace overflows , it falls on the terrace tiles,runs on ...
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0 votes
1 answer
159 views

How can I insulate the floor of my existing shed?

I have a 15x8 shed that I'm in the process of insulating. The floor appears to be plywood nailed to the joists. I don't have access to a jack and I'm unable to fit underneath the shed. It appears the ...
1 vote
3 answers
125 views

Waterproof plywood alternative with structural strength of plywood [closed]

Is there a readily available alternative to plywood that I could use for the walls and floor of a treehouse that would be waterproof (from a will-not-be-damaged-by-water standpoint rather than a ...
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0 votes
2 answers
88 views

Can I use gravel as fill between concrete slabs?

The second floor of an old 3000sq.ft. barn has shifted and sunk. There is a 15" difference between the highest and lowest point of the floor. I want to poor a new concrete layer, but I'd rather ...
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0 votes
0 answers
34 views

Seam between vinyl plank and hardwood

We want to replace the flooring in our kitchen, and would like to use click-lock vinyl planks for cost and ease of installation. However, I'm unsure how to transition between these and the adjacent ...
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0 votes
1 answer
59 views

Removing power cord retainer from floor lamp

I bought a Nickle floor lamp years ago from lowes. And its been working fine but just recently it stopped lighting up. I checked the bulb and its not that. I have not been able to progress any further ...
1 vote
0 answers
52 views

Is a plywood subfloor with outdoor carpeting glued on appropriate for a screened in porch

We have a 20 year old screened in porch that had a plywood subfloor with outdoor carpeting tacked on. We just pulled the carpet up and noticed blackish areas - mold? The porch floor does get wet ...
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2 votes
1 answer
162 views

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 vote
1 answer
116 views

Sistering floor joists with lvl [closed]

I am going to sister a few of 2x8 floor joists (70 yrs old) with lvl. I know I can use same size dimensional lumber but why not to use lvl to get better reinforcement. Cost is fine. Any input ...
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0 votes
0 answers
249 views

12x12 shed with 2x4 subfloor frame on 4x4 skids

I am building a 12x12 shed on 4ea treated 4x4 skids with a subfloor using treated 2x4's on 16" centers, and 3/4 plywood floor. I want to use 2x4's to keep the shed to ground level lower. From ...
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-1 votes
1 answer
107 views

Minimum supported floor weight in the UK

I live on the second floor of a small block of flats in the UK. To my surprise the floors between levels in the building are wooden and not concrete. As such I can sometimes feel things move as I walk ...
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0 votes
0 answers
140 views

Does this look like asbestos black mastic?

As I was lifting up a threshold strip / door bar under the bathroom door, I ended up damaging some tiles and lifting them, exposing what I believe might be asbestos black mastic. However, after ...
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0 votes
0 answers
35 views

How to fix splatter stains and stains from sunlight (or rug?) on this wood (or fake wood?) floor

I don't know how to tell whether a floor is hardwood, engineered wood, laminate, vinyl plank, vinyl tile, vinyl sheet, linoleum, bamboo, etc. So I don't know what type of floor this is in my home ...
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0 votes
0 answers
33 views

Floor paint stripping

OK, so I decided to strip a heavy black paint and what not on top of it from the hardwood floors in a 100+ year old house I purchased recently. To that end I purchased a $150 stripping tool ("...
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0 votes
3 answers
51 views

Is there a way to make tiles outside a home not slippery?

The tiles at my front door get very slippery when they’re wet (ie. rain or sprinkler watering). Is there anything I can do to make them not slippery?
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1 vote
1 answer
196 views

Is OSB ok under cement board for tile floor

I've read that OSB is not suitable as a flooring substrate for tiles. But if the substrate will be cement board, is it ok to use OSB beneath that for subfloor repairs?
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0 votes
0 answers
324 views

Remove white spots from luxury vinyl plank flooring

I just moved into an apartment where the floor needs some additional cleaning. The following are two pictures I took (click to enlarge): The floor is vinyl wood (Luxury Vinyl Plank Flooring). I tried ...
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0 votes
0 answers
23 views

Help ! Weyroc / uneven floor needs levelling

we have had an extension built on the back of an old house and they fitted a floating floor with Weyroc top. We have bifold windows right across and want to put in flooring. Problem is that the floor ...
  • 1
0 votes
0 answers
70 views

Raising Sunken living room - Load concern

I want to raise the living room so it is level with the rest of the house. I have all the dimensions and how I will be doing it. However, I am concerned about the load as there is a basement below. ...
0 votes
1 answer
126 views

USG Fiberock underlayment used for tile installation

I reinstalled the tiles in the laundry room and the installer used USG Fiberock, instead of Hardiebacker - as initially told me. He’s telling me that USG Fiberock is good for laundry room. But now I ...
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0 votes
0 answers
31 views

integrity of unreinforced 6-inch concrete slab floor for a 15mx20mx1.8m pool

Our church built an in-ground pool with the following dimensions: 15m x 20m x 1.8m (roughly 540cum) in our retreat center. However, no reinforcing bars were added when a 6-inch thick floor slab was ...
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0 votes
1 answer
88 views

Adding a half inch of height to subfloor for laying floating porcelain tile

I am laying floating porcelain tile that is a half inch thick. I also have to lay down an underlayment under the tile. After accounting for both of these items I come up about a half inch too short ...
0 votes
1 answer
527 views

How to remove the fireplace hearth

I have removed a fire place surround. And removed the piece that sat on the floor in front of the fire. Before removal But after removal there is some kind of cement that is on the floor in front and ...
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0 votes
0 answers
164 views

Garage drain isn't draining, how can I figure out where it ends?

My house is a 1977 ranch with double garage underneath and it has septic tanks. A round drain in the garage seems to go to the left as that's where the vacuum hose goes when I put it in the drain, but ...
0 votes
1 answer
78 views

Acclimating hardwood weight concern

I am having 3/4" red oak hardwood floors installed (1200 sq ft) and need to acclimate the wood. The floor is supported by 2x10 joists (16" center) with a 13 foot span. Can this wood be ...
3 votes
1 answer
861 views

How to connect mismatched height baseboards?

I had a wall put up where a closet used to be and want to put in baseboard at the bottom. I have found that the floor is actually uneven and tapers at the end. So if I push the baseboard in for the ...
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6 votes
3 answers
2k views

Why can't you install larger floor tiles without thinset/adhesive?

I can understand the need for adhesive for wall tiles. But if you have a flat floor, and medium to large tiles, why can't you just lay your floor tiles on the floor without any thinset and grout it. ...
2 votes
1 answer
270 views

Will these floor joists support a new soaker tub installation?

I am installing a 3ft. X 6ft. soaker bath tub that will weigh almost 1200 lb. dead weight when filled with water. The tub will be parallel to two existing 2x10 floor joists that have a 11ft. 3in. ...
0 votes
1 answer
459 views

Can we use hybrid water heater for radiant floor?

We have a concrete slab radiant floor that is currently heating by propane tankless boiler (Lochinvar NKC199N), but as you know LPG is expensive and not quite efficient. Now, I am thinking about ...
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