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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renewing a heated bathroom floor

I heard there is a material that works great for renewing a bathroom floor which has a heating system integrated. We would like to give a new shine to ours but we don't want to break everything. I've ...
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28 views

laminated flooring vs OSB

I'm considering the option of using OSB(10mm+ thick) in stead of laminated flooring, the floor is currently just concrete, on top of which there's linoleum on top of which there's a carpet. What I'm ...
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39 views

Self levelling concrete as primary floor?

My kitchen currently has a concrete floor with a bit of underlay and then some funky blue vinyl on top of that. A new kitchen is going in Q1 this year and I'd quite like the look of concrete floors. ...
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23 views

Tile vs cement polish

We have unfinished basement. Years ago when we gutted, we put down a layer of dry lock on the walls & floors because that's what we thought was protective. We've never had water come in thru floor ...
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1answer
44 views

Waterproofing 1st floor bathroom with original wooden floor boards in a Victorian house

I want to convert a 1st floor room into a bathroom, retaining the original wooden floorboards. There will be no shower, just a bath in the room. What needs to be taken into consideration with regards ...
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1answer
45 views

What should I do if a new cabinet is smaller than the old one?

I want to change my bathroom cabinets, but need ideas for floor. If I leave the same tile and the new cabinet footprint doesn't match the old, then there will be a portion of the floor exposed with no ...
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1answer
31 views

How do I lay joists over a complex-sloped basement floor

I am helping a friend install a bathroom in his basement. The basement floor is partially rock which has been covered in plastic vapour barrier and then covered in a thin layer of concrete. (The ...
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2answers
27 views

Finishing basement… level floors with SLC or install stud wall first?

Basement floor isn't too far off... wondering if I should get the stud wall done first or level the floor first....
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1answer
113 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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1answer
27 views

Is there a better method for fixing UPVC floor trim to skirting, other than the adhesive tape provided?

Can anyone recommend a better method of fixing UPVC (e.g. Homelux) floor trims to skirting other than the adhesive tape provided? Can you mechanically fix them or is it just down to adhesives?
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1answer
74 views

How can I add flooring to an attic floor with electrical wires running across it?

Want to floor attic space that has electrical wires tacked to joists. is the best way to notch out additional boards over wires and add to the top of these joists and then floor?
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2answers
115 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. ...
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1answer
44 views

Temporary floor fix - Ikea laminate on concrete and wooden boards

I've just bought my first home and have started the long-term and rather daunting task of getting it into a decent state. First on my list is the Kitchen floor. See photo below. I pulled up the smelly ...
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3answers
72 views

How should I finish a basement with a pitched floor?

I am building a room in the basement where the slab has a pitch. I have already installed had a foam and magnesium board subfloor and my intention is to have a carpet installed on top of that. The ...
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2answers
76 views

Spilt bleach on stained hardwood floor

Unfortunately upon moving into our new rented flat we have spilt a small amount of bleach (about the size of a large coin) onto hardwood floor. Here is a picture: Is there anything we can do such ...
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1answer
155 views

Is my attic floor over my garage strong enough to use it for storage and maybe as a small work area?

I would like to use the attic space above my 2-car garage for storage of items around the house and garage, and if possible, utilize some of the space as a small work area. The previous owners left ...
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4answers
74 views

Is baseboard important? (and 3 choices for trim on wall-to-floor transition)

I'm pulling out wall-to-wall carpet and installing solid hardwood floor. I am also removing the old baseboard and repairing the bottom of the wall with drywall compound to take out any weird ridges ...
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4answers
82 views

Hardie Board Subfloor—Thinset or No?

I'm remodeling the bathroom in my house that was built in the 1930s. I stripped out the old flooring down to the 1x8 wood planks (about 1/4" between each). I have 1/4" Hardie Board to put down in ...
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1answer
89 views

How should I orient the laminate flooring in this room?

I'm planning to install new laminate flooring in a bedroom that has two closets, and I just want to make sure I'm orienting it correctly. From what I've read, there are two rules for this: Along the ...
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1answer
79 views

House slightly uneven floors almost everywhere

I recently purchased a 2050 sq ft. house 1 story, built in 2000, in North Dallas. We had a general inspection done on it, and the disclosure didn't mention any foundation issues, also all the doors ...
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1answer
72 views

How can I fix a floor joist that has separated from the cross beam?

I have just 1 beam that is no longer in the notch that is supposed to rest in on the crossbeam. The house is 100 years old. Would it be a safe option to install a floor jack to bring the beam back up ...
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2answers
71 views

How does one fix an unlevel, poorly-supported floor when you can't access it from underneath?

I recently bought a new home. Also on the property is an accessory building which I am using as an office. The building is finished on the inside and has a cheap parquet floor. I'm not sure what's ...
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1answer
30 views

Reading the measurement of the slope of a floor

I have been told the slope of a floor is 2.5 degrees. How does that translate to the dropping of the floor so many inches in four feet?
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0answers
45 views

What can I do to fix water coming up from floor drain?

This vertical pipe is connected to the kitchen sink above and the utility tub in the basement. When the utility tub is used, the drain in the floor is backing up. If the sink is run upstairs it ...
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3answers
110 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 ...
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1answer
56 views

What should I do with an unfinished parquet floor during a two-year rental?

I'm renting an apartment and I've just moved in. The apartment's floor is a wooden parquet floor and it appears to have been polished/sanded but it doesn't seem to have any sort of finish on it, so I ...
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1answer
201 views

Simple & Cheap dance floor instead of carpet

I'm having a large group over for a party. Since my living room is carpeted, I'm trying to think of clever ways to create a nicer dance floor than the carpet. One thought was two 8x4 pieces of plywood ...
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3answers
721 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? ...
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2answers
74 views

Do I need an expansion gap around concrete laid inside a building

We are laying a concrete floor inside a room in an old stone building. Do we need to leave an expansion gap around the edge? The room is open at the front so we are not insulating or anything.
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1answer
130 views

How to get threshold screws out?

Trying to replace an external door threshold. I have tried removing the screws with a screw gun with no luck. I have tried using an impact driver and hammer with no luck. The heads of the screws are ...
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1answer
93 views

How much weight can floor made of plywood over joists on concrete slab support?

I'm installing a 3' x 4' masonry heater that will weigh 1700 - 2000 lbs in a room that is a converted garage. The floor is plywood over 2x4 joists directly atop a concrete slab. How much weight can ...
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2answers
97 views

Reattach carpet to one wall - looking for advice/suggestions

First off, some pictures of the carpet I am looking to re-stretch: I recently finished remodeling a bathroom, and in the process moved a wall, so in the adjacent room we pulled up the carpet along ...
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2answers
83 views

Should I change all floors or only one?

I have two different type of flooring on my second floor. I have almost 30 sqm with dry pine flooring (four rooms), and 8 sqm with vinyl (one room). The pine planks are not nailed to the floor, I can ...
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2answers
54 views

Should we use regular plywood or Lauan over fir strip sub-floor before laying vinyl?

We are preparing a rental kitchen floor for sheet vinyl or VCT tiles. We currently have exposed 3" wide fir strips as the sub-floor. We were told we needed to lay 3/8" plywood over the fir for ...
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1answer
85 views

How should I fill gaps between floorboards?

We have a Girl Scout camp and I'm the new property manager. We have cabins that are on stilt-like legs, approximately 20 years old. The flooring in these cabins has large gaps in between each piece of ...
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3answers
65 views

How can I get 2X6X12's cut at a slight angle so I can build a level floor?

Here's my question - I am turning a friends small garage into a guest room and I need to place a wood subfloor on top of the cement floor. The room is 7.5' wide by 12' long and it slopes at a slight ...
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1answer
180 views

Bathroom subfloor replacement

I live in a house built in 1981 that has 16 inch spaced floor joists. In wanting to retile the bathroom I have discovered the plywood all around the toilet flange is junk, it expands about 12 inches ...
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0answers
50 views

How can I level sistered floor joists? [closed]

I have a 6' deep and 18' wide roof deck that has water damage. I removed the old flooring and tile. The joists by the stucco railing are rotten. The joists by the house are fine. I removed the rotten ...
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2answers
730 views

How do you sister joists?

I am replacing part of a floor because of water damage. I have removed three layers of flooring. The joists were unaffected by the rot (as was the bottom floor, but I removed it anyway). I only ...
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0answers
46 views

Which should I do first? replacing furnace or resurfacing concrete floor?

I'm going to get two things done in my basement soon (by hiring professionals), but I'm wondering what the right order of operations is. One task is to replace the gas furnace that sits near the ...
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1answer
62 views

Would cork flooring underlayment help with vibration dampening in a sub floor?

Related question: HE Front End Washer vibrations on wood floors: any tried-and-true solutions? In hopes of being able to keep our new front-end HE washer (which we like) I've decided to bite the ...
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1answer
79 views

Insulating and reducing boominess of plywood subfloor

I have a plywood subfloor in a ground floor extension that is laid directly on the joists. The current floor is half solid wood tongue-and-groove laid on top of green fibre underlay and half fake ...
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1answer
140 views

Why cement under upstairs bathroom floor?

I went to tile upstairs bathroom floor and when we pulled up old linoleum and replace subfloor that was rotted we discovered 1 1/2" of concrete poured on top of old subfloor. Why would somebody do ...
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2answers
245 views

how do I level the floor in a sunk in living room

My home has a step down living room. It has carpet on it, but i want to make the floor level with the rest of the house it is about 2.5 inches step down. People keep tripping. I then either want to ...
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2answers
42 views

Direction of wood flooring

Flooring will run long ways parallel to walls in hallway. Then the hallway runs into the living room with a large white brick fireplace at the far end. How should the wood be laid? There is a bank of ...
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1answer
38 views

Seamless construction joints on concrete floor

By construction joints I mean the joints between a batch of floor made one day and the new work in a following day. What is the proper way to get the most seamless joints when making finished concrete ...
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1answer
85 views

Are all toilet bolts installed from under the floor?

My mom has an older toilet. When is became loose, in order to tighten the bolts she had to hire someone to go under the house. We just got a new toilet. I was hoping to install it as a d.i.y ...
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0answers
47 views

Raise cupboard floor (under stairs)

We have a 1930s terraced house in London (UK) with a small cupboard under the stairs, its floor space is about 80cm x 190cm. The floor of this area is around 80cm lower than that of the hall that runs ...
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1answer
38 views

Do I need to use a waterproof sealant in my entryway?

Do I need to use a waterproof sealant in my entryway, over the backerboard and under the porcelain tile or is the thinset adequate? Sub floor is above grade, 3/4" plywood. thanks!
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2answers
234 views

Possible To Put an Epoxy Coating on Particle Board?

Is is possible/recommended to put an epoxy such as Rust-Oleum Epoxy Garage Floor Coating on particle board? Any help would be appreciated! ...