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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2answers
323 views

Will internal waterproofing solve my moisture problems?

We've been working on our water problem for awhile now. Here's the deal: There is black drain tile under the home (all the way around) tied into a sump crock. Water was only coming in one side. A ...
5
votes
1answer
1k views

What should I do to level an uneven floor with a potential load bearing wall above?

I'm trying to level the first floor in my 90 year old house. The floor joists are held up by a wooden beam composed of 5 2x8s, which is held up by two steel columns. In the middle of the wooden ...
5
votes
1answer
4k views

What do I level a 2" slope in my concrete basement floor?

I want to finish a 12'x36' part of my basement. The trouble I am having is that it is sloped to a floor drain. I was told that DRIcore and shims would work but the drain is a 2" slope down from the ...
5
votes
1answer
965 views

Can I install carpet in the attic?

I'm planning on adding a plywood floor to part of my attic. I have some old carpet that I'm thinking about laying on top of the plywood. Is this a bad idea?
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4answers
4k views

Do I have to check if my floor is level before installing new linoleum (from a roll, not tiles)?

I just tore up my old linoleum flooring and will be installing new linoleum in the next few days. Some internet research has revealed that I need to make sure the floor is level and, if it is not ...
4
votes
4answers
18k views

How can I transition between these floors?

I have recently fitted some new laminate flooring to my living room floor. This floor meets directly with the tiled floor of the kitchen. I'm looking to fit some sort of transition bar between the ...
4
votes
1answer
508 views

Will I cause problem/cracks with jumping exercise in upper floor?

Every day I am doing my martial art practice in upper floor. It contains jumping and power movements which cause sounds downstairs. Is there any problem for concrete by this continuous jerking ...
4
votes
2answers
729 views

Should I remove nailed-down plywood before laying tile?

In my bathroom there is vinyl on top of plywood, which is nailed to the sub floor. Should I pry up the plywood before putting down cement backer board for tile, or can I go over the plywood?
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4answers
27k views

Can I install hardwood floors (not floating) on a concrete floor?

We have recently bought an old house, and the ground floor has a hard floor and is currently covered in tongue and groove laminate - which we hate. We'd like to put reclaimed floorboards down - is ...
4
votes
2answers
5k views

How to level a section of raised concrete floor?

I had a plumber move a toilet drain on cement slab. The new concrete he poured is about 1/8" higher than the rest of the floor. I need the floor to be level for tile installation. The new concrete is ...
4
votes
4answers
4k views

Is it possible to refinish floors one room at a time?

I live in a small townhouse and would like to refinish the floors in the upstairs of my home. It is very difficult to do all of the rooms at once, but a friend suggested that unless I do this, the ...
4
votes
4answers
10k views

How can I locate floor joists?

I want to use some stop squeak screws that pull the subfloor tight to the joists, then break off beneath the surface of the floor. I am having a difficult time locating the joists: my stud finder ...
4
votes
1answer
550 views

Dealing with scratched floor tile

I have a kitchen with a tile floor. In one corner, there's been a pedestal style garbage bin. It seems that stepping on the foot pedal has caused the bin to shift slightly during each use, and over ...
4
votes
1answer
816 views

How do I cut grooves in self-leveling concrete to incorporate an existing drain?

This is a follow up question to my previous question about leveling a basement floor without losing the drainage. After the feedback I decided to use self-leveling concrete and cut (or form it in ...
4
votes
1answer
396 views

Options for Hardwood Floor Scratch and Gouge Repair

I have a 10 month old puppy who recently discovered her (apparent) love for the taste of wood putty. There was a rather large knot hole that had been plugged and finished in our living room floor that ...
4
votes
1answer
327 views

Crack spanning several tiles

I've got several tiles in my dining room that have a diagonal crack running across them. Since it's a pretty straight line across several tiles, I'm guessing it's a foundation issue. The room is at ...
4
votes
1answer
3k views

What does blocking refer to in relation to floor joists?

This question was triggered by the following line in a home inspection: Blocking is not installed for I joists above beams in basement. I have found pictures of blocking at ...
4
votes
1answer
7k views

How do I patch sections of polyurethane coating on a hardwood floor?

Sections of the floor in our dining room have worn sections, where the polyurethane coating has worn through to the bare wood. Having the room emptied and properly refinished isn't really an option at ...
4
votes
1answer
273 views

What type of underlayment should be used when installing engineered floors?

I'm going to install floating engineered wood floor in a 3rd floor condo. It has plywood subfloor. My biggest concern is the noise of walking on the floor that people below me will suffer. My ...
4
votes
2answers
92 views

What's the proper way to address a moisture issue in a concrete slab?

About 4 years ago my wife & I purchased a home. It was approximately 10 years old at that time. The foundation is a concrete slab. Approximately 2-3 years before we purchased the house, the ...
4
votes
2answers
7k views

How to install baseboard at the transition between floors with different height?

Recently I replaced the carpet with engineered floor. However, now I met the difficult to install the baseboard between the two floors with different height. See the picture: I don't know what's ...
4
votes
1answer
2k views

Framing a 10x12 wood floor, using 2x6 PT lumber

I am building a foundation for a 10x12 metal/vinyl coated shed. The foundation is ready with four 12" diameter concrete pillars and another three pillars down the center. I used concrete strong tie ...
4
votes
1answer
5k views

How can I insulate a shed floor?

I am currently planning on insulating my shed this summer to allow year round usage. My first step is to insulate the whole shed. - The walls and Ceiling are straight forward, I will be ...
4
votes
4answers
2k views

How do I repair a floor joist which has a hole drilled less than 2 inches from the bottom?

I have three floor joists that have approximately 1/2 inch hole in them less than 2 inches from the bottom. Is there a recommended fix or approved method to correct this to meet code? These joists ...
4
votes
1answer
207 views

What can I do about a house with internal concrete floor with no DPM?

My partner and I have just bought our first home.A 1950's bungalow which is need of refurbishment. So far it has thrown us a ton of surprises! The worst so far being the floor in one of the bedrooms. ...
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votes
4answers
318 views

Why does my basement floor paint come off when it's wet?

I painted my basement floor and now just 3 weeks later my washer leaks and the paint is peeling off. I also put some water down on a spot and when I wiped it up you can scratch the paint off. It is ...
4
votes
2answers
14k views

How do I properly jack up one side of my house?

As I write this, I have a slight lean as I walk on my floor in some parts of my house, and it's even worse on the upper floor. In some parts upstairs, it feels almost like you have to grab something. ...
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5answers
7k views

How should I prepare a plywood subfloor for floating vinyl plank flooring?

The floor of my laundry room was three layers of hideous vinyl flooring of various vintages, a layer of 3/4" plywood underlayment (to match the height of the vinyl to surrounding hardwood flooring) ...
3
votes
3answers
731 views

What kind of floor is this?

I got different answers from different contractors and I am so confused now. Some said this is hardwood, and some said this is bamboo. If is it wood, is it possible to tell what kind of wood is this? ...
3
votes
2answers
3k views

How do you determine the slope of a floor?

What are some methods for figuring out the slope of a floor? I've always heard the slope referenced as, eg: "1/2inch over 6ft." - is this the normal way, and/or are there other common ways to say ...
3
votes
4answers
126 views

Which way to put a parquette floor according to windows?

I have heard people saying that hardwood-floors should always be put alongside windows while others claim it should be put orthogonal to windows. Which one is the better way now?
3
votes
2answers
18k views

Standard height from floor to ceiling?

Is there a standard height from floor to ceiling. I want to install some false ceiling (plaster board) ... I seem to remember there was a standard but i don't remember it Any help really appreciated ...
3
votes
1answer
1k views

Should I install a wall before or after hardwood floor installation? [duplicate]

Possible Duplicate: Frame or floor planks first? I am building a small wall between two rooms. The existing flooring was carpet, which I have removed. I plan to install a floating floor ...
3
votes
2answers
1k views

Will thinset be damaged if it gets wet after drying 18 hours?

I laid tile in the bathroom yesterday. About 18 hours later, it felt pretty solid, so I took the opportunity to do some minor plumbing work under the sink (replaced the water shutoff valves). I had ...
3
votes
1answer
85 views

Normal Hardwood floor installation on a wood structured deck

We need help on installing hardwood floors made of larch (a type of cedar). They are 3/4 wide and we want to install them just as we would inside a house. We will oil them with an exterior ...
3
votes
4answers
2k views

How can I improve the cold floor in my ground-floor unit?

My home is a ground-floor unit in a condominium. The floor is really quite cold and I'd like to do something about that. I saw in another question the suggestion to use Platon. Would I be able to put ...
3
votes
3answers
2k views

Renovating Crawlspace with Poured Concrete Floor

My newly-purchased 1950s home has a below-grade crawlspace with a poorly-poured concrete floor. Specifically, it is very coarse and looks like it was poured and spread with a garden rake. In some ...
3
votes
2answers
4k views

Should I seal, waterproof a concrete basement floor before painting?

What is the best sealer/waterproofer to put on a basement floor that I just want to paint. New construction, no water problems, but washer & drier & water heater are in basement and add to ...
3
votes
2answers
156 views

Should I patch this hole in my slab?

I'm in the process of tearing out carpet and installing laminate in my guest bedroom. After I got the carpet out, I discovered a hole several inches across underneath the wall that borders the garage. ...
3
votes
2answers
3k views

What should I do about this load bearing wall that is only supported by a joist floor?

My floors pitch in the same spots as they do on the 1st and 2nd floors. My home was built in the 1890's. I have some soft spots in the basement joists and added 4x4" posts to each side of the main ...
3
votes
1answer
1k views

How do I fix an uneven cement floor prior to hard wood flooring install?

I have recently ripped up carpet and padding on a cement floor for a sixth floor condo unit. I plan on installing 3/4" Bella, 3' wide flooring on it. The problem is that there is a ridge, about 1/8", ...
3
votes
2answers
2k views

How do I level a concrete basement floor with a 1" dip?

I want to level my concrete basement floor, but on one end it slants down over 1" (over a 3'x15' run). Can I fill this area before using self-leveling compound, to save money, or what else could I ...
3
votes
2answers
194 views

How can I repair the structure of this floor?

I am working on a house that the concrete piers on the back side have tilted, and pulled the ledger board and header away from floor joists. this resulted in the floor joists dropping over about a 30 ...
3
votes
2answers
3k views

How to remove a tile with floor heating mat

Two weeks ago I laid 1 X 2 ft ceramic tiles in my bathroom using premix tile adhesive. After reading some reviews, I should have mixed my own - lesson learned. This weekend I added grout and all went ...
3
votes
1answer
7k views

What should be done about water under bathroom floor tiles?

There is water getting under our bathroom floor tiles. The landlord believes that due to a recent remodel of whole bathroom, water is not draining from the window ledge but is instead going into the ...
3
votes
1answer
1k views

What is this burnt cement floor treatment called?

In Brazil we have a floor finish named Burnt Cement (that doesn't involve burning). Here is a description of the process In summary, you use a mix of cement and pigment (sometimes marble powder too) ...
3
votes
0answers
72 views

Small geyser coming out of the basement floor

My house is 40 years old. I have had basement flooding issues for years. With heavy rain, water comes out of my floors. I have a sump pump that takes care of it. Despite knowing better, Ive been able ...
3
votes
1answer
43 views

How do I remove wax or Mop-and-Glow from Pergo floors?

How do I remove wax or Mop-and-Glow from Pergo floors?
3
votes
3answers
531 views

What is the proper way to clean a paintbrush and metal pan with KleanStrip paint thinner?

I am finishing my hardwood floors tonight with an oil-based polyurethane. I bought a natural bristle paintbrush and a metal pan, as well as some KleanStrip paint thinner that is "made with Mineral ...
2
votes
4answers
7k views

Is it likely that there is lead in the varnish of my old 1930's hardwood floor?

I have recently uncovered an old (and presumably original circa 1930) hardwood floor in the hallway of my house. Over the past couple of weeks I have been cleaning and sanding it in order to ...