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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2
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2answers
284 views

How can I use bulk electrical wire to make a subfloor heating system?

Electrical floor heating kits run US$10 to $15 per square foot, but bulk wire only costs $2.50. With the controller, you're still running under $4 a square foot. I have a construction background, but ...
0
votes
2answers
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 ...
5
votes
1answer
65 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 ...
3
votes
4answers
2k views

how to repair large, uneven crack in concrete floor

I have a really long (about 20') uneven crack in my cement garage floor. Not only is it jagged, but the sides of the crack range from flat to about 1/2" high. I want to level the sides of the crack, ...
4
votes
4answers
4k 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) ...
0
votes
1answer
55 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 ...
1
vote
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 ...
2
votes
1answer
386 views

How can I repair a crumbling shed base?

I think I know the answer to this already but its worth a punt. I laid a 4mx3m shed floor (clearly badly), with about 10 cm of hardcore and 7.5cm of cement, that whilst in the middle appears fine, on ...
3
votes
3answers
67 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 ...
1
vote
4answers
38 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 ...
1
vote
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 ...
1
vote
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 ...
8
votes
1answer
31k views

How can I level a sloped floor?

I have a 10x13 first-floor room which used to be a porch but at some point was closed in by the previous owners, and sheet linoleum was glued down to the plywood subfloor. Unfortunately they didn't ...
1
vote
0answers
112 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 ...
0
votes
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 ...
1
vote
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.
2
votes
1answer
341 views

What is the easiest way to measure an irregular floor space?

I would like to order a comfort mat for the floor of a small kitchen. The company can make it to order but I have to provide exact dimensions. This is harder that it sounds though as the floor space ...
0
votes
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 ...
0
votes
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 ...
0
votes
1answer
94 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 ...
2
votes
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?
3
votes
2answers
2k 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 ...
1
vote
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 ...
1
vote
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 ...
2
votes
3answers
585 views

How can I remove oil stains from a concrete floor?

I rented a home, and the garage floor is concrete. It looks like the previous owner had a small car that dripped more oil than it retained. It has been parked on multiple spots, so there are ...
0
votes
1answer
89 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 ...
3
votes
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? ...
1
vote
1answer
78 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 ...
12
votes
4answers
8k views

How do you stop the floor from squeaking?

I have a home built in the 1940's. The main floor creaks a lot and more squeaking and creaks seem to spring up in new places all the time. Is there an easy way to stop the squeaking and creaking? I ...
30
votes
6answers
41k views

Should I use a subfloor for a finished basement's floor?

We are refinishing our basement and have not yet decided what to do for the floors. Part of the basement will be tile, and we are all set. However, the rec room side is going to be carpet. The ...
2
votes
1answer
76 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 ...
2
votes
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 ...
2
votes
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 ...
0
votes
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 ...
1
vote
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 ...
0
votes
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 ...
4
votes
4answers
1k 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 ...
0
votes
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 ...
2
votes
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 ...
1
vote
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 ...
2
votes
2answers
313 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 ...
0
votes
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 ...
0
votes
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 ...
5
votes
4answers
15k views

How do I use 'surface shims' to level out a sloping floor?

Asked a question about leveling my floor here earlier this week, and one of the options suggested sounded appealing, but didn't contain enough detail for me (a not-too-handy, ...
0
votes
1answer
123 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 ...
1
vote
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 ...
0
votes
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 ...
7
votes
3answers
1k views

How can I cheaply refresh parquet in an apartment?

We've recently rented an apartment with seriously damaged parquet. Since the deal is "take it or leave it", we've decided to "mend" the parquet ourselves. Dictionary :) Sorry for my bad english, I ...
10
votes
2answers
9k views

How do I do a minor grout repair properly?

I've got grout between some floor tiles that is cracking and coming out in small chips, over time. The tiles and remaining grout are otherwise in great shape. I suspect this is just a problem ...
2
votes
1answer
92 views

Filling deep gaps at corners of maple flooring

I have fairly new natural maple 3/4" [about 4" wide] flooring installed. The installer was sloppy and where the flooring butted against doorways (no doors, just open frames), he should have side cut ...