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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44 views

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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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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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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Floor sagging between joist- please help

I recently bought an old home- 102 years old and have some flooring issues. The long story is we bought it knowing it had foundation problems in the rear right corner. The home had a poured concrete ...
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1answer
75 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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Advice on building a livable cabin floor on a concrete slab [duplicate]

I'm planning to build a 10 x 12 livable cabin based on a shed design. The cabin will rest on an existing concrete slab. Many shed designs recommend building the floor with equally spaced joists. ...
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42 views

Advice on building a livable cabin floor on a concrete slab with insulation and plywood

I'm planning to build a 10 x 12 living space based on a shed design. The shed will rest on an existing concrete slab therefore my plan is to lay 6 mil polyethethylene sheeting and foam board ...
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1answer
52 views

Is it ok to insulate external cantilever floor joists with foam board to fix cold floor?

We have very cold floors in the kitchen because the outside air is moving up through the external cantilevered floor. I'd like to insulate it by cutting 2" foam (probably XPS or Polyurethane) and ...
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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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2answers
34 views

Touch up my garage floor after applying epoxy coating

We put RustOleum epoxy floor paint on the garage floor. There were light streaks on it when it dried. We repainted the light spots and reapplied the sparkles. It looks like its not going darken to ...
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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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1answer
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Replacing floor boards and joists

I am replacing water damaged floor boards in my bathroom. They were previously tiled and I will be tiling them again. It's an apartment and below the floor is concrete, with joists between the ...
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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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slab heat pipes and radon reduction

My house has slab heat and the pipes come out of the dirt and go to the heating unit. This is located in my basement and I'm wondering how to seal it to help reduce radon entering the house.
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1answer
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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
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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
55 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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2answers
84 views

How can I seal a two inch gap in the floor along a wall?

I have almost a 2 inch gap between my wooden floor and wall in the apartment I am renting. I think the dust down there is causing me allergies and I’m worried about the cold AC air escaping down there....
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1answer
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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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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
62 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
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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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1answer
70 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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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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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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3answers
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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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1answer
88 views

What causes and how to fix lifting floorboard?

It doesn't seem to want to lift up. I assume it is some sort of tongue and groove board because there are no nails or screws anywhere. When I press down on the lifted part with a lot of force it ...
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42 views

Repairing cut wooden floorboards on either side of the main joists

How do I repair cut wooden floorboards that have been cut on either side of the main joists, as now the floor is squeaking and bouncing all of the time? I have tried attaching baton underneath with no ...
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28 views

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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1answer
35 views

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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119 views

?? black tubes in basement floor?

My house in Canada is 14 years old . From original construction, rising up out of the concrete basement floor are 18" black tubes about 3/4 inch O.D. in three different locations . What are they for ?...
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How to install second subfloor?

I'm putting in 12mm floating laminate with a 4mm felt underlayment in my living room and I noticed some bowing in the current subfloor to the point where I can see it while standing up. The high ...
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1answer
195 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
39 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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2answers
84 views

Approaches to level a concrete floor with shallow pipes

I have a situation very similar to How to level a section of raised concrete floor?. Except, in my case the obvious solution of grinding the high point is not possible. In my hallway I have a raised ...
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1answer
169 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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1answer
67 views

How can I remove paint splatters from sealed decorative concrete deck?

I have a custom concrete pation & pool deck that is textured / painted to look like wood. It is also sealed. Recently I had the coping on my pool fixed and the guy did a great job but left quite a ...
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2answers
115 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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3answers
1k 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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1answer
38 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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0answers
24 views

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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2answers
64 views

Do tile floors have transition joints at the entry to each room?

Hello I have a question regarding setting down some tiles. I tried researching the topic but I was unsuccessful. I posted a picture of the rooms that i will be setting down tiles. Which consist of 4 ...
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24 views

Cut Bathroom Supply Tube

I cut my hot water supply tube while replacing a damaged piece of flooring in my bathroom - pretty much cut it in half and now can't get it to stop leaking. How can I fix it to prevent future leaks?
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1answer
47 views

Storing ladder below subfloor in kitchen

My kitchen height is 9 feet. To maximize storage, I am planning to have cabinets all the way upto ceiling. To avoid lugging in a ladder all the time, I am planning to build storage under subfloor. ...
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0answers
149 views

Need advice on correcting a floor dip

I have an older house (1940’s) with a dip in the hallway leading to my downstairs (1st floor) bathroom. From wall to wall the hallway is 14 feet with the wood floor joists below running parallel to ...
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0answers
250 views

When does a splitting floor joist become a problem?

We recently moved to the US Northeast and bought a 6 year old, two level plus basement house. I've been finishing the basement and have noticed several floor joists are splitting. I come from a ...
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1answer
75 views

How can I take out dog diarrhea stain from unfinished pine floor?

My fog had an accident a few days ago on the unfinished pine floor we have in the living room. After cleaning it wish basic cleaning products it left quite a stain. I would appreciate any kind of ...
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1answer
42 views

What is it called when you increase the concrete floor (ramp it up) to avoid using a transition strip? What are the pros and cons of this approach? [closed]

What is it called when you increase concrete floor by ramping it up, to avoid using a transition strip?
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1answer
42 views

How can I support a room expansion that will extend above a garage slab? [closed]

I have a mud room that I'd like to make larger. By doing so I have to extend the floor out into the garage. Currently, there is a landing in the garage that is about 3 feet off the ground leading into ...
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1answer
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Floor joist splices appear inadequately reinforced

The following picture shows that the floor joists in this house are butt-spliced where they rest on top of a large beam. These joists are 2" x 6" Douglas Fir, and the end of each floor joist is ...