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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3answers
62 views

First floor of house wobbles!

I've seen similar questions but I'm still stuck for an answer, so I hope someone can help... I've just built what is essentially a two-storey cube, 6m x 6m x 6m. It's a steel construction, a little ...
0
votes
0answers
21 views

Basement Floor Installation - Do I need a subfloor or can I use underlayment for warm floor

Live in Vancouver, BC. I'm in the drywall phase of my basement project and we would like to put down vinyl flooring. My unfinished basement has been ultra dry for the last 8 years as it has great ...
6
votes
2answers
117 views

How to improve wooden joists without removing them

First floor bathroom in a Victorian terrace house. Floor joists run left to right with floorboards laid front to back. Joists are approx 10 foot long. At some point in the past, the previous owner ...
1
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0answers
13 views

Sistering joists supported by concrete block on each side

I am going to start a kitchen remodel on a mid 40's home that is constructed with concrete block on all exterior and filled concrete block center wall up to the second floor. Floor joists span approx ...
1
vote
1answer
25 views

Adding a layer of concrete and tiles in the garage

I just wanted to get opinions on my plans to fix the somewhat sunken slab in our garage. We bought the house two years and (it's about 50 years old) and I have been monitoring the slab since day 1. ...
1
vote
1answer
20 views

What is the best way to protect a burnished concrete floor during construction?

I am doing a new build. The floor is burnished concrete done by High Trowel finish during concrete pour. I need to protect the floor afterwards. What is the best way to protect a burnished concrete ...
0
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2answers
68 views

Replacing a crawl space with concrete slab

I have a 1970 rental house that is prone to flooding the crawlspace approximately 1 week a year. To clarify, the whole section of land, yard, and streets are under a foot or more of water, due to ...
4
votes
2answers
201 views

Basement shower tiled floor not sealed by builder what now

So I have recently had a tenant move out and have found water damage around the basement shower floor. Looks like black mold so I started ripping it out. Now I am at the point where I have found ...
0
votes
1answer
29 views

Leveling floors and Installing windows

I have a sagging 1930s house and plan to level the floors using I-beams and jacks. I've read that the process is very slow and I'm also wanting to install windows. Will it cause any kind of problems ...
1
vote
2answers
56 views

What is causing the defined ridge and sunken surrounding floor on my second story floor?

House was built in '87. A defined warp (or ridge) has gradually appeared on my second story floor, in line with the load bearing wall. It appears that the surrounding floor has sunk while the load ...
1
vote
1answer
80 views

Is This Wood Still Good? (Water Stained or Rotten)

I have an attachment on the side of my house, basically an enclosed porch but could also be a mudroom. One of the doors leads to a deck where the prior owners let the gutter downspout fall out of ...
0
votes
3answers
53 views

Painted concrete floor surface leveler alternatives

It seems there was a miscommunication and a contractor painted the concrete floor by mistake. I know that the proper way would be to remove the paint but I try to avoid that because overall project ...
1
vote
1answer
63 views

How to fix gaps between bamboo flooring planks

About 8 months ago I laid down a floating bamboo floor. The planks are solid carbonized strand bamboo. We allowed the planks to acclimate for over two weeks in the apartment and then laid down the ...
2
votes
2answers
45 views

What power tool is the best and fastest to take up floor tile?

I need to pull up the floor tile in my kitchen. i've tried using a hammer and chisel and the tile pops up easily, but it's too slow. what power tool is the best and fastest to take up floor tile? is ...
0
votes
1answer
32 views

Advise on proper placement of floor threshold

I have just widened my kitchen by two feet. As well I removed a small 45 degree wall and straightened out the doorway into the bedroom. As you can see in the Before Image, the threshold between the ...
0
votes
0answers
30 views

Are Slick Strips (UHMW tape) slippery enough to slide a car

I have a small sports car (~500kg/1100lbs) which takes up too much room in my garage and I want to build a system to slide the car to one one side to free up some space. I have heard that Slick ...
0
votes
2answers
100 views

What can I do about a low spot in my bathroom floor?

I have water standing on a specific area of my bathroom floor. The whole floor dries out except for this area. It has stagnant standing water. What can be causing this problem, and is there a solution ...
1
vote
1answer
39 views

what is the best low maintenance finish for a hardwood floor

Home made mesquite flooring. What is the best floor finish? Low traffic but subject to spills...this is for the man cave. Installing diy mesquite floor tiles, 4 - 6" width, random lengths. Aprox ...
1
vote
1answer
32 views

Where to install underfloor heating under tile; thinset layer or concrete?

Putting in either a thermal wire/mesh (SunTouch) type underfloor heater or carbon film under tile. The subfloor is OSB. Going to pour 3/4" of LevelQuik Self-Leveling Concrete (replacing Gyp-Crete ...
0
votes
2answers
60 views

Sealing OSB subfloor from moisture? Patching small gouges?

What are some methods that can be used to seal an OSB subfloor from moisture? And patch small gouges (quarter sized)? Background: Small Bathroom remodel. Tile came up with finger pressure, ...
0
votes
1answer
54 views

New Hardwood Floors Chipping

I just bought a newly built house in Maryland and have been living in it for about three months. Most of the house has hardwood flooring that for the most part looks really good. However, I've found ...
1
vote
2answers
40 views

How to get stains completely out of carpet?

So I have accumulated a disappointing amount of stains in my carpet (some of them even grease stains as I work with food) and I would like to know some sure fire ways to remove them with out ruining ...
0
votes
1answer
34 views

How to transition between 2rooms when gap is wider than standard 2“ ” t molding strip laminate

How can I transition between 2 rooms if gap is wider than standard 2"t molding strip for laminate floor? Looked for wider strip but could not find one.
0
votes
1answer
34 views

Self-leveling alternatives to gypsum concrete (Gyp-Crete, Pyrofill, Securock) over OSB?

Replacement options for < 1.5 inch pour? Details: Bathroom remodel (new tub, tile wall/floor, toilet, vanity). Old tile floor came up with finger pressure, found that the gypsum concrete ...
0
votes
2answers
44 views

How to remove stains from tile?

I have a very weird stain on the bathroom floor of an apartment I just moved into. Is there an easy way to remove this stain? Also, what is the material of this tile? Is it like a concrete tile? ...
-1
votes
1answer
60 views

Load Bearing or Not How Can I Know For Sure

We have an unusual 3 inch thick poured concrete floor in a steel mesh in the ground floor of our house, under this is a basement like area with an old riveted steel across half of it and a couple of ...
0
votes
0answers
37 views

Fill gaps on deck boards. Deck is now a sun room

We have enclosed a deck and the owner wants to keep the look of the deck floor. The floor has spray foam insulation on the under side. We want to fill the gaps in the floor. What would be the best ...
1
vote
3answers
86 views

Do I need to replace water damage or just let it dry out?

I had a water leak under my kitchen sink. It happened pretty slowly over the course of perhaps 8 weeks. The bottom of the cupboard was saturated and about 6 " up the sides of the same cupboard unit. ...
0
votes
0answers
22 views

What type of insulation should I use for varying joist spans of 3-4ft?

I live in the #3 region in California, and am wondering what the most cost effective and functional DIY method for installing insulation under my floors. I have kneeling room crawl space under my ...
1
vote
1answer
93 views

Cleaning indoor concrete floor without damaging it

I just finished helping a colleague clean out his (large) garage at his new house. He's gradually converting it to a indoor gym for himself and his kids (ie: indoor swing set, toys, etc, with a small ...
0
votes
1answer
57 views

How worried should I be about unlevel floors/vibrations?

we bought a house about 6 months ago. The house is 50 years old this year. Passed main and termite inspections with only minor issues (many of which we've already addressed), and also had an ...
-1
votes
1answer
48 views

How much heat can be saved by insulating under the floor? [closed]

How much heat can be saved by insulating under the floor, in the crawl area of my house?
1
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2answers
57 views

Concrete Floor for 400 Gallon Water Tank

I am planning to build a concrete slab on a soil surface to hold a 400 gallon water tank (Shown Below). I want to make it 7' x 7'. It should hold about 3,500 lbs. Would I need to put in rebar? I've ...
1
vote
2answers
97 views

Dealing with Asbestos Floor Tiling

This is a cement kitchen floor (about 300 sq ft). Removed cheap pergo flooring and discovered a layer of tiles from 1962. Had them tested and came back with a high composition of asbestos. Here are ...
3
votes
3answers
386 views

Is this a drain cover or an electrical outlet cover?

Can anyone tell whether this is a drain cover or an electrical outlet cover? Former homeowners converted a garage to a family room ~20 years ago including extensive water drainage reorientation. The ...
0
votes
4answers
76 views

Best way to fix an uneven floor

We have an uneven floor that when we first moved in tried to repair but were unsuccessful. The root of the problem is a foundation slab which is uneven. We could not even it because there is an ...
1
vote
3answers
116 views

Can I use self leveling compound to level old thin set over plywood subfloor?

The previous owner of my house tiled all the bedrooms on the second floor. I would like to remove all the tile and lay down hardwood flooring. So far I have removed the tile and now have all the thin ...
2
votes
1answer
57 views

Halo effect sanding floors

I've used a drum sander and an edging sander to sand a floor. This has left the perimeter of the room a little different from the rest. What's the best way to blend both the regions ? I used 36,60,80 ...
1
vote
3answers
83 views

New Basement Floor, house not framed yet

We are building a new house with an exposed basement. I had the floors poured a week ago while still warm in December. We have not framed the house up yet, meaning no deck, walls, roof, or HEAT. My ...
0
votes
1answer
44 views

What's the best type of underlay for bamboo flooring

I am building a new house and it sits on piers. The sub-floor I am using is yellow tongue particle board. I have just bought some bamboo floors and wondering what's the best type of underlay for it ...
1
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0answers
20 views

decking overhang

I am building a 8x8 deck with stairs coming from landing on north side to landing on n.w. corner then along the west side. inspector said if I can show that running the 6 2x8 joist full length 12 ft. ...
0
votes
3answers
79 views

How to choose laminate flooring

What should I be looking for when I choose laminate flooring? I am building a smallish house, I plan to put in laminate flooring in it. But I heard some horror stories about how some laminate flooring ...
1
vote
2answers
54 views

Dye laminate which lost its color because of detergent

A bottle of detergent for toilets leaked on my laminate for 3 days. The laminate became filled with it on a small area (less than 10cm²). The floor lost its colors and it slightly tinted in blue (the ...
1
vote
3answers
53 views

How to level an old cement floor?

I have an old garage where I want to make an office. The floor is not 100% leveled and has some holes. I read about self leveling material for the floor. Is this something one can apply? is it easy? ...
1
vote
0answers
56 views

sticky popping sounds coming from under my newly laid hardwood floors

i have a very annoying and frustrating problem. there are sticky popping sounds coming from under my newly laid hardwood floors. there is a underlay on cement base and the installer swears that he ...
0
votes
2answers
104 views

Load capacity of 2x4s spaced 16"

We are trying to finish an above garage attic space as a playroom (since the ceiling will be slanted - 7' to 4' headroom). The "room" is 25' x 8' and currently has 2x4s that are 16" apart. My current ...
1
vote
1answer
42 views

Access 2nd-story burst hydronic pipe through ceiling or floor?

We had a freeze which caused one or more bursts in our hydronic heating system pipes. We know that there is one burst in a radiator, but there may be others, according to the contractors. If there is ...
0
votes
0answers
101 views

Installing a floor for storage above detached garage?

We have a gabled-roof single-story detached garage with horizontal 2x4 beams spaced four feet apart and a 20' span. There are two vertical 2x4 beams connecting the two horizontal center beams to the ...
0
votes
0answers
39 views

Thin-set mortar advise

I was advised by Home Depot tech and bought a thin-set mortar VersaBond. Then, after I came home, I watched a Home Depot video on how to prepare my kitchen cement floor for laying on a 13.5" X 13.5" ...
0
votes
2answers
64 views

Do DRIcore panels need to be flat?

I want to install carpet tile over DRIcore on my concrete basement floor. The floor is far from flat; I would guess at least an inch or two of overall variation. Do I need to ensure the floor is ...