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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29 views

How to fill a gap on the floor before laying vinyl

My bathroom has a ‘click lock’ laminate floor and I’m going to lay new vinyl over the top. Currently there are edging strips covering the gap between the laminate and the wall. To fit the new vinyl ...
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Joist size calculation for attic loft conversion

I'm familiar with the concept of sistering ceiling joists to make them appropriate to hold a live load as a floor, but I've found the various joist calculators and tables either wrong or confusing. I'...
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Sistering cantilevered floor joists

A stair and landing was incorrectly built without a drip edge over 4 cantilevered joists coming out of the building. Over the years, water got in and rotted the joists to just past the point where ...
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Can the kitchen sink waste pipe run from where it comes out of the concrete slab to the sink by running horizontally under the cabinet floor?

We are converting a peninsula into an island and need to move the kitchen sink. As a result the waste pipe in the concrete slab comes out in the front (see photos) instead of the back. We don't want ...
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Light Frame Structure Ceramic Floor Installation

I hired a contractor who made a big mistake. He installed a ceramic floor onto 1"inch cement board (that is screw into welded beam constructed subfloor). He did not use thin set or tape over the ...
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44 views

Floor leveling compound ontop of glued-down laminate

There is floating LVP currently installed in my kitchen which needs to be replaced. Underneath it is glued-down laminate. There is a small section of the floor that dips down that I would like to ...
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30 views

Fill space between hardwood floor and wall

Last winter we noticed several areas of our floor have gaps that allowed cold air in. I'm looking for suggestions on how to fill these gaps between the wall and some floorboards that don't extend far ...
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1answer
21 views

Laminate flooring

Had to replace sub floors in mobile home. Installer said underlayment is not needed. New floors are moving up and down and creating problems. He also used 1/2 plywood and there was some past repairs ...
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2answers
102 views

What is happening to this wooden floor?

What is happening to this wooden floor and why? It's happening in various places, but not all over the floor. It's not even limited to where there is heavy traffic or where I have a chair on wheels. ...
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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 ...
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65 views

how to repair garage concrete threshold

I have a really badly cracked concrete floor at the garage's threshold, looks like the previous owner just slapped concrete on threshold, and it has broken in pieces. What is the right way to fix it? ...
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43 views

New Garage floor paint

I am having a home built. I would like to paint the garage floor with Behr Granite Grip. Since it is a new home can I just sand and paint it? Thank you.
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Fill gaps between vinyl floor

I installed this "click" vinyl, but there's one corner of my floor(concrete) that's uneven, because of that the vinyl doesn't click properly and there's a small gap. Can I just caulk this ...
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How can I protect a shed floor from ground moisture?

I needed some sort of workshop/storage/playhouse, so I thought I’d build a shed with three sections: Workshop - 2.4m x2.4m Storage - 1.2m x 2.4m Playhouse - 2.4m x 2.4m Now I intend on turning the ...
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Finishing Concrete basement floors

Alright! This is a 4 part question! I live in a new build in Ottawa Ontario and would like to finish my basement. Basement is below grade, and the house has been up for 6 months. 1 )I'm planning on ...
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how to repair large crack going down length of garage?

My garage floor has a large crack in it that runs the entire length of the garage (approx. 20'). The crack is about 1/3 the way into the center of the garage. and a slab has sunken. my brother in law ...
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1answer
147 views

How do I reverse the slope of my garage floor?

When I built my garage 25 years ago, the concrete contractor nixed my idea of installing in-floor drains under each car "bay" and assured me that he would slope the floor toward the garage ...
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1answer
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Lead painted floor below current subfloor: can we leave the subfloor when replacing main floor?

The kitchen floor in our 1860 New England house has many layers. I count 5. We would like to replace the current floor. It's starting to break in many places and we hate it. Below our current floor is ...
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157 views

What are the options for mitigating problems with an asphalt garage floor

The house I purchased has a small detached garage that I use as a workshop and a place to store bikes. It is attached to a relatively long straight asphalt driveway. My question has to do with ...
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1answer
93 views

Can someone help me to verify if my balcony can handle the load of a hot tub

I would like to place a hot tub on my balcony, and need help to double check if my floor joist can handle the load. I have have 2 x 12 floor joist @ 16" o.c. with 3/4" plywood decking and 1/2" ...
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51 views

Is this a reasonable way to create a crawlspace over a structural floor?

So, part of my thinking on "how to build a house" includes the use of a structural floor (slab) with a crawlspace framed atop it to provide space for, and access to, service runs. (Air handling ...
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Oak floor boards - getting an even finish with Polyx Oil

I’m using Polyx Oil hard wax finish on a new oak floor. The boards are grade A2 or B French oak, and I’ve used 2 part filler (Ronseal, “natural” colour) to fill splits, knots and some areas of uneven ...
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Best ways to repair/replace worn vinyl tile?

Is it feasible/recommended to remove about ten worn out 15.5 inch vinyl tiles and replace them with 10 year old unused spares from the original installation? Tiles are grouted and color match is good. ...
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1answer
75 views

Term for hinge that allows trapdoor to rise and move aside while remaining near-level

What terms describe / can be used to locate a hinge that allows a trapdoor to rise and move aside while remaining near-level? I have a project where a cantilevered* shelf of 3/4 inch plywood will need ...
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1answer
37 views

How to make a floor?

OK, that's a very broad question. Let me give the details: We own a very old (estimate: about 100 years) rural house with some land. My wife spent lots of her childhood summers there, our kids like ...
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Filling in a sunken living room to level of other floors

My sunken living room floor is concrete slab surrounded on two sides by higher concrete slabs at the level of the rest of the house. The other wall is a brick fireplace hearth. The wall opposite that ...
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1answer
43 views

What do I need to do to clean/restore these floor tiles?

We have a porch on a 1930s property in the UK which has red tiles on the floor. I believe they are original and in good need of a clean up and maybe some additional work. What do I need to do to get ...
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1answer
33 views

How do I tell if dried flooring glue is oil-based or water-based?

I removed vinyl flooring that was glued down (by a previous owner) in the 1990's, and there is a significant amount of dried glue left behind on the concrete floor. The self-leveler and glue that I ...
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37 views

Converting old mechanics garages grease pit into a storm shelter

We’re wanting to convert an old mechanics grease pit into a storm shelter. What would be the best way to do. We were thinking concrete for a slab and a wooden door for entrance. What is the best way ...
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2answers
251 views

Do my HVAC ducts need to hang away from floor joists?

I have a basement that I would like to finish and install a drywall ceiling. And I would like that ceiling to hide the HVAC vents. However, the vents already just (by an inch or so) go over my head. ...
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16 views

Fixing garden building floor

I have a "summer house" in the garden, it's been there years, but the floor has started to fail/rot - I managed to put my foot through it! I plan to remove the carpet tiles, treat the existing floor ...
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Drafts coming from all floor Heating system ducts. Gaps between sheetmetal and floor have been sealed

I had my heating system, crawl space furnace and leaky poorly insulated sheet metal duct work, replaced a couple years ago with a 96% efficient system. The system was independently tested and ...
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28 views

Raising Concrete Floor then install Vinyl Plank Flooring On Top

In order to be level with hall, I need to raise the height of the floor by 1/2"-1" in a room in which I am going to be installing vinyl plank flooring. Previously the room was carpeted so with the ...
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1answer
62 views

Sizing I-beams for two Floors to replace LVLs [closed]

I had an engineer size some LVLs to help support an existing(sagging) floor. See image for majority of info needed. The Blue beam is (3) 14" LVLs laminated [192" (16' 0") Long] and the Red beam is (4)...
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What is this pipe coming out of the basement floor?

I’m finishing an old (1930) empty basement and have a random pipe coming out of the floor. ⁠I have no clue what it is or what it went to as it sits alone in the space. ⁠It is metallic (tested with a ...
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3answers
111 views

Why do floor tiles exist? [closed]

Floor tiles: We all know them, we all love them, but who are they really? Floor tiles can be beautiful and stylish, adding color and interesting patterns to a room. But 90% of the time, they're ...
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51 views

Floor Support Repair

Slight sway in kitchen floor, I Removed a divider wall in a basement and discovered the previous homeowner had removed a staircase and filled in the entryway by adding 2"x 12' joists that are only ...
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3answers
73 views

Leveling options for an uneven concrete floor in basement?

I live in an old house (somewhere between 1870 and 1920) with a retrofit basement. I also have a high water table, so during the spring rains, we get a trickle of water in the basement ( we've come ...
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2answers
65 views

Cleaning dried up hand-disinfectant from lacquered wood floor

There was some hand-disinfectant dropped on a lacquered wooden floor. Tried to remove as much as possible with a wet tissue but the stains shown in the picture remained... Anyone knows what could be ...
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427 views

Should I use an orbital sander or a belt sander for sanding a section of varnished floor?

I need to sand down a small section of our floor and thought I'd buy a small sander instead of renting one for the day. I've been looking at orbital and belt sanders. In particular the two models I ...
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1answer
33 views

Low resource fix for loose wood planks

I just moved into an apartment with a row of loose wood planks along a central walkway. I'm only going to be here a few months, but I'd like to secure them somehow. Unfortunately for me, this house is ...
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1answer
39 views

Is it necessary to seal a newly patched basement floor in an old house?

We recently had the basement drain system replaced in our 1930s bungalow. This required removing sections of the concrete floor and filling the parts that were removed with new concrete when the job ...
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3answers
117 views

What to cover underside of shed subfloor

I'm building a garden office (shed) and will build a floor similar to that shown below (minus the flat beams between the joists and the concrete supports). I will insulate the floor using PIR (e.g. ...
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1answer
64 views

Toilet flange concreted into floor, replacement?

I've got a toilet on the concrete floor. The old flange has rusted and disintegrated at the hold down bolt slots. But the flange is actually cemented into the floor. I think my #1 option is to cut off ...
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2answers
96 views

How can I prevent post support brackets from creaking under foot traffic?

I (well, a contractor) added a new addition to my house, and the floor creaks when I walk on it. I crawled under the addition and identified the problem. On each footing, there is a steel bracket ...
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1answer
59 views

Should we glue above and below our rubber underlayment for wooden floors?

We have received our delivery of 3/4 inch thick engineered wood planks. They are 8 inches wide, random lengths, and the white oak layer on top is about 3/16 thick. Subfloor is very good and solid ...
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2answers
128 views

Should I be worried, or is this a cosmetic issue? floor in 1935 apt building

We live on the 4th floor of a pre-war, 1935 apartment building in NYC. On one outer wall, the oak floor is separated horizontally about 1/2" from the wall/baseboard. The floor is also little sunken ...
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1answer
522 views

Sealing plywood edge and faces (Shed Floor)

I am laying a plywood sheet floor in my shed. I have plywood that is certified for humid conditions rather than wet and the sticker on it also says that the edges and faces should be sealed. It is not ...
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1answer
62 views

Cold air under base board heat from floor

My wood floor doesn't go all the way to the wall underneath the base board radiator. I have a draft coming from that section. - what can I put down to stop the draft and looks nice.
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1answer
63 views

Sunken area under bathroom cabinets

I'm remodeling a bathroom in a Houston, TX house that was built in 1969. After removing the cabinets on each side, I found that the concrete floor is approximately 2 inches lower where the cabinets ...

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