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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Sistering Floor Joists

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 ...
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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 ...
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171 views

What's a low depth floor joist solution for 2nd floor with 4x4 floor joists?

My goal is to meet the code requirement for the strength of the floors on a 2nd story for a remodel. I am remodeling a house where the floor joists supporting the 2nd floor are nominal 4x4 (3.5" ...
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188 views

Optimum plywood configuration for home gym floor?

I wish to protect the floating laminate flooring of the room I am building a home gym in. Therefore, I will lay down plywood sheeting to spread the load and prevent scratching. I am having trouble ...
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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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19 views

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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42 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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109 views

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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172 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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30 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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1k views

Water/ moisture coming through patched concrete hole in basement floor

We had our walls braced last summer and the basement guys had to drill holes in the floor to push the walls back in to place. They patched up the holes with concrete and I've noticed a few times (...
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61 views

Basement Floor Cracks

I have very thin cracks in my basement floor and I'm attempting to patch them before trying my hand at acid staining the floor. I've read some differing opinions on the use of hydraulic cement or ...
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93 views

Salvaging a poor bathroom floor

Recently I completed a bathroom remodel mostly on my own. It was an overly-ambitious project and one of the key mistakes I made was rushing the prep-work for the sloped tiled floor. The bathroom ...
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469 views

Raising internal floor - to screed or not to screed?

The porch of our home has been made part of the interior. We now need to raise the floor to meet the level of the existing floor internally. The total height of the step is 5cm. So the floor needs to ...
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477 views

How do I support a deck-style floor in crawlspace?

This question is kind of a follow-up to the one asked here: how-should-i-add-flooring-in-my-crawl-space. My crawlspace is exactly as the one described. Basically my house is on a slope and have a ...
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91 views

How to prepare concrete for epoxy floor coating when it's been repaired with a epoxy hole repair?

After taking our garage down to the studs to remediate black mold, and replace drastic termite damage, we intended to just scuff up the former owners concrete paint (I think now it was probably latex ...
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81 views

Repair garage floor

How do I repair the cement edge to the entrance to my garage.
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348 views

Vomit etching on stone floor

My daughter was sick on the stone (I assume it's marble - that's what it looks like) floor. It was cleaned up right away, but now there is a visible (from the right angle) dull spot on the floor ...
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Painting Brand new concrete floor - is an acid wash necessary?

I just bought a newly constructed house that has a large (20x20) attached shop with a concrete floor. I want to paint the floor. I've looked at several sites on how to do this, and they all say to ...
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84 views

Concrete slab between stories

Here in the U.S., pretty much all the houses, even those that are made of brick, have framed floors, meaning there are 2 x (usually 10) joists from one side of the house to the other and then OSB ...
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195 views

How to support new wooden floor joists on stone and clay foundation walls

I'd like to ask you for some best practice sharing, or advice . My situation: I'm about to make new wooden floor in old house with walls made of clay and huge rocks. The walls are therefore a bit ...
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772 views

Pier Beam Foundation Sill Beam

Background: I live in upstate New York, just outside of Ithaca. My wife and I have recently purchased a home at a steal because of an existing relationship with the previous owner. So the fact that I ...
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93 views

What are the steps or phases to prepare a basement for finishing?

I've got a small house with an old finished basement, and want to refinish it. I've removed most of what's there (carpet, panel walls, old ceiling tiles, floor tile, etc) and am at a point where I ...
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142 views

Sistering joists supported by concrete block on each side

I am going to start a kitchen remodel on a mid 40's home that is constructed with concrete block on all exterior and filled concrete block center wall up to the second floor. Floor joists span approx ...
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32 views

decking overhang

I am building a 8x8 deck with stairs coming from landing on north side to landing on n.w. corner then along the west side. inspector said if I can show that running the 6 2x8 joist full length 12 ft. ...
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143 views

sticky popping sounds coming from under my newly laid hardwood floors

i have a very annoying and frustrating problem. there are sticky popping sounds coming from under my newly laid hardwood floors. there is a underlay on cement base and the installer swears that he ...
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222 views

What are my options for handling kitchen floor/dining room floor height differences?

I'm reflooring both my kitchen and the adjoining rooms. The kitchen will be tile and the Living Room/Dining Room will be engineered hardwood. I'm going down to the joists in the kitchen because the ...
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309 views

How should I deal with old black mastic before installing floor tiles?

I will be removing wood floor tiles that wee installed over old VCT tile which have black mastic on them. I can remove the wood and VCT with no issues, but I do not want to have to remove the old glue....
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85 views

Where should I put the transitioning from tile to laminate with open floor plan?

I have an open floor plan in my house. The house is about 25 years old and the same white glossy tile was used in the living room, dining room and large kitchen. The tile looks decent in the living ...
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634 views

How to repair straight cut floor joist?

What's the best way to repair a cut floor joist? It looks like when removing floor boards for remodel, someone has cut about half way through the top of joist with saw straight cut. No notching. I'm ...
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3k views

How can I edge concrete without an edge trowel?

How can I make a concrete floor (also using dry shake color hardener) with a proper edge, without using an edge trowel? In Brazil I cannot find an edge trowel anywhere, so I would like to know if ...
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661 views

Will I have any issues installing an in-floor heating mat with premix mortar?

I installed a radiant floor heating mat under ceramic tiles using a premix mortar. I now understand this was not the right thing to do. After further research the only reason I can find that suggests ...
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534 views

How can I stop water from coming up through the floor?

I have a house that is on a high water table, and water is coming up through the floor. The property was excavated around the perimeter a couple of years ago and installed a new Big "O". Drycore was ...
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1answer
63 views

Found a Crack in Subfloor when Removing Old Tile

I was removing old tile from my kitchen and found the crack seen in the pictures. I was wondering how big a deal the crack was and how to proceed with trying to lay new tile. I wanted to knock out ...
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41 views

Installing a vent grill when the floor is finished

Is it possible to install an HVAC vent grill in the finish floor? This is in the attic space under a sloped roof, where the floor doesn't run all the way to the roof, so we actually have access to the ...
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59 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 ...
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20 views

How to Undercut Walls for Floating Floor Between 2 Concrete Walls

I'm laying down NuCore LVP floating plank floor in a room with concrete/brick walls on either side and was wondering if it's possible to slide both sides of the floor into my undercuts. I have done ...
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26 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 ...
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26 views

Stacking LVT boards upstairs

I've just had a load of evocore LVT boards delivered (40 packs of 7 boards), which I dutifully dragged into my house. I can't find a weight for each pack, but they are pretty heavy. I took them ...
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24 views

Fix oil stain on wooden parquet floor

I placed a bag that had something in it that was leaking vegetable oil on a wooden floor, and I now need to fix the problem. I've tried contacting multiple professionals, but it seems this is too ...
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33 views

We have concrete efflorescence forming between the planks in our basement, how can we eliminate it?

We have concrete efflorescence forming between the planks in our basement floor. How can we eliminate it?
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32 views

Old floor blending with new

We have two very different colors of floor, new vs old. We liked the rich color of the old wood when we applied wood conditioner. This same color can be achieved with red oak stain on the new, so ...
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55 views

Floor Weight Question for Aquarium

I am building a reef tank in my living room, it's in the corner of the house, and as you can see from the drawing, it is sitting on 5-floor joists. The house is less than 10 years old and the joists ...
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13 views

I'm using 2" EPS below grade insulation for radiant floor heating, Do I need a poly vapor barrier on top?

In addition to 2" of EPS do I need a poly in a radiant floor heating system
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53 views

I put caulking in between tiles that had grout already underneath it. What do I do?

My floor tiles had unsealed grout already in between the tiles. I went to Home Depot and bought a “sealant”, but it was actually caulking. I ended up putting caulk over top the unsealed grout in ...
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36 views

Waterproofing flat balcony over a shed

I have a kid's club house built over a shed part of it exposed as a balcony with flat floor no roof over it . The old floor was an OSB flooring badly damaged with water, so I replaced it with a new ...
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1answer
103 views

What wood is our floor made from and will it be good as polished boards?

Can anyone tell what wood this is. It is a photo underneath the house (Southern Australia region). Will that come up well as a wooden floor?
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284 views

How to seal an OSB shed floor against pest, weather, and temperature?

This question follows from my previous question about leveling my OSB shed floor. I didn't realize until I received several comments and suggestions that said question actually has two focuses: How ...
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Filling first concrete floor with Autoclaved aerated concrete (AAC) brick to 3 feet height is good?

First concrete floor is with 500 sq.ft. area. Out of this, 200 sq.ft. is in projected form for about 3 feet height. So, we are planning to fill in with AAC blocks up to 3 feet height for the rest of ...
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15 views

Blocking foundation vent bricks

We recently bought a house in the UK built on 1936. The house has been refurbished and extended a few times over the years. With the cold and moist weather outside, the first thing we noticed was a ...