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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71 views

Adjust a refrigerator on the floor

My refrigerator stands on the floor unevenly. Its slant is small but enough to make the motor produce unpleasant noises. If I manually tilt the refrigerator a little bit, the noise disappears. ...
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173 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
330 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
128 views

How to read this floor map scale?

I'm not an interior designer, but I'm going to do the home design myself. I don't know how to read the scale of this floor plan. I'm going to put this into a floor planner website and design, but I ...
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1answer
75 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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1answer
374 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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2answers
75 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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2answers
115 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
523 views

What causes uneven floors and can they be fixed?

I've seen two distinct cases. In the house I currently live in, the largest room in the basement has a floor that is uneven. Basically it dips lower towards the middle of the room. I presume this is ...
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2answers
58 views

What to mask space between panel floor and balcony with?

We have put the floors on our own. They're not perfect and we have left too much space between the floor and the window. And a standard finishing element like this: is too small. Here are ...
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1answer
64 views

Filling gaps in hardwood floor - what's the easiest way?

I've got an old, beat-to-hell, hardwood floor in my apartment in the kitchen where quite a bit of water ends up on the floor on a daily basis as there's obvious things like a stove and sink, but also ...
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1answer
28 views

Fix creeky old wooden floor

The duplex I live in was built around the 1920s and still has the original wood floor but its very creeky and the neighbors downstairs are always complaining so I'd like to fix it. I'm wondering if ...
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2answers
54 views

Why is it so cold downstairs?

My house has a concrete slab foundation and the floor in the kitchen and living room is all tile. It is always freezing downstairs in the winter and I'm wondering if this is due to the floor or maybe ...
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1answer
87 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
102 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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3answers
69 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
80 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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2answers
46 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
118 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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1answer
182 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
204 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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1answer
116 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
104 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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2answers
1k views

When Laying Tongue and Groove plywood over 1x6 subfloor, do I lay it with the grain perpendicular to the floor joists or to the 1x6 boards underneath?

I am redoing a bedroom and I am in the process of installing a new sub floor. I currently have 1x6 running perpendicular to the floor joists. Some do have a bit of give to them. I am laying over that ...
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1answer
74 views

I have an old house (100 yrs) up off the ground and in the past year the wood floors have began to sag where the boards meet [closed]

I think my house is about 1oo years old, I have lived in it for 15 years and just in the last year the wood floor has started to sag or bouncy where the boards meet. I thought it was in the traffic ...
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2answers
70 views

How should I cut through hardwood floor?

I want to install steps to my basement. I need to saw through a hardwood floor. Is there anything specifically I need to do to the hardwood?
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1answer
99 views

Can I insulate under my condo's subfloor?

My condo does not have a basement. I have a subfloor with three dummy registers. I don't know why they are there. My heating ducts are in the upper part of the side walls. In the winter the cold ...
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2answers
370 views

What 'quick & dirty' finish for a concrete floor

I am moving into a new home for 1-2 year period. Its an old office building and the landlord is flexible with how I decorate; as it will eventually be totally gutted and renovated. My 3 rooms are ...
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2answers
214 views

Preparing surface when tiling over existing tiles

I'm retiling our bathroom and intend to tile over the top of the existing floor tiles. The floor is in fair condition at the moment with no cracking except in one place which I did myself and will ...
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0answers
18 views

basement flooring

I would like to put a floor in my basement. my idea is to put 3&1/2 squares of 2x4 material on the concrete with 2x4 sleepers on top and all covered with plastic(vapor barrier) now I would put 5/8 ...
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0answers
30 views

Transition laminate with t-molding to tile

I need to transition where the laminate is higher than the tile. The laminate is 12mm so the tile is about 1/8" below the laminate. I have t-molding and metal track but there is a gap on tile side. ...
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32 views

metal flexing sound from 2nd floor

I bought my home 6 months ago. When we moved in last summer, we didn't hear this sound. Now when I step on particular spot on this one bedroom, I hear metal flexing sound. I am guessing the duct is ...
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1answer
19 views

Whats size concrete aggregate

Not sure on what size stone/gravel i should use, 10 mm or 20 mm in my cement mix 1 cement + 2 sharp sand + 3 gravel (10mm or 20mm) ? I need to fill 4 gully's in an internal concrete floor, each about ...
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34 views

Can i replace the existing screed on concrete slab with floor insulation and electric underfloor heating?

Can i replace the existing screed on concrete slab with floor insulation and electric underfloor heating ? Standard screed thichness is something like 50 mm to 80 mm or so. My idea is to replace the ...
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0answers
18 views

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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0answers
53 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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0answers
25 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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2answers
114 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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0answers
58 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
41 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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0answers
52 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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0answers
261 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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0answers
28 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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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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0answers
57 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
635 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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0answers
61 views

Does this black subflooring need to be replaced?

I'm working on replacing some laminate in my bathroom with tile. I ripped up the laminated and the particle board (which was black near the bathtub) the subfloor underneath appears to be black as well ...
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0answers
39 views

Brown Tile Floor Turned White

Living an older home with tile floors. Someone said I should clean it with mix of vinegar and water. I was actually cleaning a cabinet and spilled some of the vinegar and water solution and it has ...
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1answer
371 views

Can I get a smaller toilet installed? (picture included)

At the bottom is a picture of my toilet, where you can see the toilet pipe that enters the floor and that there is ~7 cm of space between the water container and the wall. Question Does there exist ...
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1answer
95 views

Need help leveling part of a floor

We had an 8 foot square hottub in our bedroom for 10+ years. Because of the weight, the floor has sagged in that section. The tub is gone now and we had carpeted around it, but now there is a big ...