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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51 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
66 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
39 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
48 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
59 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
55 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
56 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
54 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
35 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
69 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
90 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
713 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
57 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
79 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
77 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
81 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
79 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
46 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
80 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
60 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
115 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
45 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
324 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
37 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
52 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
68 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
124 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
227 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
40 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
36 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
44 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 ...
2
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1answer
32 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
169 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! ...
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1answer
95 views

replace one tile bathroom floor

18" tile part adjacent to toilet and under the flange cracked during toilet install (plumber). first try result: replacement tile is too high, i I had to remove it. Complication: tile rocks due to ...
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0answers
98 views

How can I remove self-leveling substance and glue from my floor?

I removed approx. 30 yrs old linoleum from a room that is 6 by 10 meters. Now I have a hard time removing the glue and self-leveling compound which are stuck to the floor. From what I can tell, both ...
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1answer
61 views

Preparation for laminate floor went south

So I've setup few laminate floors so far, and I'm no expert at this but this is what I like to do in my spare time. So I've got a condo in which there were carpets and I teared out those and all ...
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2answers
97 views

How to improve garage floor look and color?

Here is a image of my garage floor. Hi-Res Link This is after a professional high pressure water cleaning contractor that used degreaser and bicarb soda chemicals to try to rid the floor of oil ...
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1answer
169 views

Cover old ugly floor in a rented apartment?

We have to move to an old rented apartment, the floor looks terrible (it's green! and that's the original color!!). How can I hide the shame? I'm looking for the cheapest solution possible (ANYTHING ...
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2answers
123 views

Replacing floor boards, then sanding and varnishing etc

We've recently bought our first house (yay!) and are looking to have exposed floorboards throughout. However I realise it's a big job and due to work etc I'll probably have to tackle this one room at ...
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0answers
27 views

How can I prevent condensation under vapor barrier on a 1st floor room with flooring?

We bought last year an apartment of the 1st floor. The building has garages and utility rooms right under our level and the two bedrooms face north. One of the bedrooms has actually an external wall ...
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0answers
35 views

How do I seal an existing concrete floor before patching it?

We are patching an old concrete slab and we are having a problem with the glue or concrete seeping through small cracks onto the floor below. Is there something I can seal it with before we pour?
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3answers
130 views

Can floor tiles be installed on walls?

I am building a home and would like to install floor tiles on wall also, please let me know if it possible to install floor tiles on walls?
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1answer
92 views

Is plywood or dimensional lumber better for repairing notched joist?

During a recent remodel, I came across a 3 inch deep by 5 inch wide bottom notch in a 3x10 (the beams are that old!). I must say, i'm just a diy'er and even I was beside myself that someone would do ...
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1answer
81 views

How do I glue moving ceramic tiles without removing them?

There was a problem with the pipes under the floor, which resulted in several ceramic tiles being removed. At the moment these tiles are back in place. The problem is that 2 tiles next to them, that ...
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0answers
42 views

How should I install a tongue and groove subfloor over ceramic tiles?

I am really new and not sure what I am doing to be honest. I am laying down a t&G subfloor over ceramic tiles to protect them(I am leasing a store front, owners would like to keep the tiles ...
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0answers
274 views

Leveling basement floor while keeping it sloping to the drain?

I am having similar problem with the basement slope being exceptionally steep around the floor drain (similar to this: How do I level a basement floor but not the slab underneath?). The discussion ...
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1answer
151 views

Shaving floor joist

I have a small rectangular home 33’ x 26’. It’s built on a walled foundation with 2 x 8 joists running the width of the home and a center I-beam support. At the back of the home they stopped the cross ...