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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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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?
Samuel Muldoon's user avatar
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0 answers
100 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 ...
Amogam's user avatar
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1 vote
2 answers
105 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 ...
homegrown's user avatar
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1 vote
3 answers
4k 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?
sammy's user avatar
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2 answers
133 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
Judd Heess's user avatar
1 vote
0 answers
79 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 ...
Amu's user avatar
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0 votes
1 answer
6k 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 ...
SBT23434's user avatar
  • 147
1 vote
3 answers
936 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 ...
g491's user avatar
  • 750
0 votes
2 answers
153 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 ...
gash's user avatar
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0 votes
0 answers
135 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 ...
so12311's user avatar
  • 153
0 votes
1 answer
135 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 ...
inferno-prime's user avatar
1 vote
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454 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 ...
Kristy's user avatar
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2 votes
1 answer
741 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.
Chris's user avatar
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1 vote
1 answer
781 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 ...
victor's user avatar
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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 ...
Dean's user avatar
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1 answer
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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 is usual here. I purchased a large flat pack ...
Chuck's user avatar
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415 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 ...
Lnskip's user avatar
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43 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 ...
Ryan's user avatar
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39 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 ("...
Rado's user avatar
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0 votes
3 answers
232 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?
jeffrey's user avatar
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1 vote
1 answer
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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?
jay613's user avatar
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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 ...
Jake's user avatar
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0 votes
0 answers
44 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 ...
Dee's user avatar
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0 votes
0 answers
251 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. ...
Stephan John's user avatar
0 votes
1 answer
486 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 ...
Dan's user avatar
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0 votes
0 answers
41 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 ...
Dan's user avatar
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0 votes
1 answer
198 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 ...
Yamaha32088's user avatar
0 votes
1 answer
2k 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 ...
User1's user avatar
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0 votes
0 answers
798 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 ...
Viki Ann's user avatar
0 votes
1 answer
156 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 ...
Todd Stem's user avatar
3 votes
1 answer
2k 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 ...
churro's user avatar
  • 31
6 votes
3 answers
4k 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. ...
Kashif999's user avatar
2 votes
1 answer
2k 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. ...
Bud Crocker's user avatar
1 vote
1 answer
3k 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 ...
ysok's user avatar
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2 votes
2 answers
2k views

Should I use solid lumber or plywood to repair a floor joist?

Is it better to sister a 2x8 floor joist (cracked somewhere in the middle) using same size lumber or is something like 3/4 plywood better? Consider that both ends of the newly sistered joist won't ...
Volkan's user avatar
  • 31
0 votes
1 answer
417 views

Condensing boiler outlet temperature for floor radiant

We've just installed a new Condensing Combi boiler last week, Lochinvar NKC199N. I've noticed the installer set the outlet temperature to 180F/82C and the return temperature to inlet is somewhere ...
ysok's user avatar
  • 31
0 votes
3 answers
864 views

Best way to stiffen up floor

While gutting my basement I want to strengthen my floor above to make it move less. Currently the floor above moves a lot when people walk around, making it really loud in the basement and causes ...
marcusds's user avatar
  • 101
0 votes
0 answers
60 views

Wood filler between old and new hardwood strip flooring?

House was built in 1983 and had 2-3/4" strip flooring on most of the main floor. When we bought the house in Winter of 2020, we had the two remaining rooms stripped of carpet and had hardwoods to ...
pstatix's user avatar
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0 votes
0 answers
702 views

Why are the edges of our subfloor wet after rain, but the walls are completely dry?

Our house has a stucco exterior and a dirt crawlspace, part of the crawlspace is wet, but there isn't much water pooling down there. Where the water is pooling, the subfloor is completely dry. The ...
Hales's user avatar
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5 votes
1 answer
536 views

Floor supported by nails, is it structurally sound?

Each time I look under this floor it bugs me; how can so few nails support an entire floor? Is this standard construction practice? It is an 80s house in Canada. New pictures to satisfy your ...
JonMerel's user avatar
  • 153
1 vote
1 answer
278 views

Can I add plastic moisture barrier under my conventional floors without further damaging wood floor joists?

I have a conventional 2x8 floor that is 40 inches off the ground. The crawlspace has 6"x12" vents on all sides of the house, spaced every 12-15 feet. We live in a humid area. Can I add ...
Niles peterson's user avatar
1 vote
1 answer
254 views

Which kind of professional should I call to fix my creaking floor?

Landlord worries about me screwing through pipes that run under the flooring (though I wonder whether that concern is justified). I'm not terribly gifted in DIY anyway and I'm guessing this problem ...
drake035's user avatar
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2 votes
0 answers
2k views

How can I make my glossy tile shine again?

I have this floor in the entry foyer of my home. You can see there's a small portion (near the top of the photo) that is shiny, but most of it is dull and scuffed (like in the rest of the photo). How ...
John Freeman's user avatar
6 votes
4 answers
2k views

Garage loft max loading

How much load can this garage loft handle? The garage is 24' wide. The floor of the loft is 2x10s 24" OC. Those are 2x6s to the left of the plates (the 2x10s run all the way from those left ...
Matt Thomas's user avatar
1 vote
1 answer
543 views

How to shim shed floor joists resting on sleepers

I have a 12 x 14 shed with 16 inch on center floor joists resting on sleepers on the two ends and in the center to support the down. However some of the 2x6 floor joists on the end are shy of being ...
Qiuzman's user avatar
  • 651
0 votes
0 answers
365 views

How to fill a second-floor conversation pit?

House was built in 1961 and has a "conversation pit" on the second floor. It may have been added when the house was last sold in 1976, see photos. I'd keep it, except whoever installed it ...
Ben S.'s user avatar
  • 101
0 votes
2 answers
2k views

2x4 floor joists in attic: make stronger/level?

My house is 100 years old in Ontario, Canada. My attic is unfinished, and the joists are true to size (2” x 4”) rough sawn 2x4s (two 10’ pieces make up the 20’ span), 16” OC, cathedral roof. Supported ...
JohnnyBender's user avatar
6 votes
4 answers
5k views

How should I repair this floor joist that is too short?

My son recently bought a 100 year old house. We have been working on some framing repairs in the basement, and have some questions about the best way to sister some joists. This is a balloon framed ...
SteveSh's user avatar
  • 6,912
1 vote
2 answers
614 views

Reinforcing a Subfloor Before Installing Tile

I want to reinforce my bathroom subfloor before I install Hardiebacker and tile. The original construction is 4-in X 6-in beams 4-ft O.C. with 1 1/8-in T&G plywood spanning the beams; there are ...
Anthony's user avatar
  • 11
0 votes
0 answers
74 views

Replacing sub floor, that is under a concrete floor

House was built in the mid 60s. It's on piers with a craw space. While having it leveled, we discovered rot under the half bath. The water leak is fixed. However discovered the sub floor that needs ...
Robbie's user avatar
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