Questions tagged [floor]

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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Light Frame Structure Ceramic Floor Installation

I hired a contractor who made a big mistake. He installed a ceramic floor onto 1"inch cement board (that is screw into welded beam constructed subfloor). He did not use thin set or tape over the ...
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Fill gaps between vinyl floor

I installed this "click" vinyl, but there's one corner of my floor(concrete) that's uneven, because of that the vinyl doesn't click properly and there's a small gap. Can I just caulk this ...
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how to repair large crack going down length of garage?

My garage floor has a large crack in it that runs the entire length of the garage (approx. 20'). The crack is about 1/3 the way into the center of the garage. and a slab has sunken. my brother in law ...
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Converting old mechanics garages grease pit into a storm shelter

We’re wanting to convert an old mechanics grease pit into a storm shelter. What would be the best way to do. We were thinking concrete for a slab and a wooden door for entrance. What is the best way ...
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Fixing garden building floor

I have a "summer house" in the garden, it's been there years, but the floor has started to fail/rot - I managed to put my foot through it! I plan to remove the carpet tiles, treat the existing floor ...
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How can I provide effective access to a subdivided space below a non-structural floor?

One problem faced when finished spaces are built atop concrete slab floors (whether slab-on-grade/slab-as-basement-floor, or a suspended reinforced concrete structural slab floor) is "where do the ...
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How heavy can my fireplace be?

Hello: I am a diy and am relocating a gas fireplace. It backs on an outside wall with one floor joist parallel to the wall under the fireplace. The joist is 2x10 x25ft. Beneath is a wall on an ...
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1920’s 2 story brick home sagging ceilings down the middle

I am not sure if I should sister joists for both the 1st floor ceiling and then the second story floor or can I jack up just the 1st floor ceiling and take care of it that way. Its a hip roof with no ...
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Uneven floors from settling rim joist

We're trying to fix the uneven floors in our 850 sqft, 80 year-old house in San Jose. Our contractor opened up the floors and the problem appears to be that the floor joists rest on a skid, while the ...
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Domed concrete floor (garage) needs leveling

I am about to replace a 14ft wide garage door. The concrete floor is domed in the centre of the doors width. The mid section of floor is roughly level for about 6 feet wide but falls away each side ...
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345 views

What are the black tubes protruding from my basement slab?

My house in Canada is 14 years old . From original construction, rising up out of the concrete basement floor are 18" black tubes about 3/4 inch O.D. in three different locations . What are they for ?...
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Cut Bathroom Supply Tube

I cut my hot water supply tube while replacing a damaged piece of flooring in my bathroom - pretty much cut it in half and now can't get it to stop leaking. How can I fix it to prevent future leaks?
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Need advice on correcting a floor dip

I have an older house (1940’s) with a dip in the hallway leading to my downstairs (1st floor) bathroom. From wall to wall the hallway is 14 feet with the wood floor joists below running parallel to ...
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968 views

When does a splitting floor joist become a problem?

We recently moved to the US Northeast and bought a 6 year old, two level plus basement house. I've been finishing the basement and have noticed several floor joists are splitting. I come from a ...
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Is it possible to get gas to an island range?

First, all gas/electric will be done by a professional. I have potentially the option to put a range in an island. I'm on a concrete slab. Can I build a raised floor and have the professional run the ...
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Partial insulation of suspended timber floor possible?

We live in a Victorian terraced house and will be putting tiling down in the hallway. I’d like to know whether at the same time we should also do something to improve the insulation of the floor. ...
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Why does the GFCI protecting my in-floor heat trip when the bath fan is switched on?

I have an under floor heating pad to heat the bathroom floor . It has a thermostat with a built in GFI in it and trips only when you turn off the bath fan . How can I correct this
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Floor Load Guidelines For Second Floor Bookcases

I am considering moving a large number of books in bookcases to a second floor room, and I am confused by the application of live load to this situation. Each case has a 2.3 square foot footprint, ...
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Add tile to kitchen floor, eveness problem

My current kitchen floor has a plywood subfloor with glued on vinyl tiles. It would be better to have a mortar bed with ceramic tiles, but if I do this, it will add about an inch and a half to the ...
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129 views

Making an attic space into walkin closet

I have an attic space which is on top of my living room and 13'X20' size. I am trying to convert this space into a walk in closet. It has 14, 2x4’s joists spacing 16” on center on 13’ direction. It ...
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Refinish Part of Hardwood Floor?

I have a large spot on my floors where an office chair has been rolling back and forth on for years. The spot is now a bit worn and the finish on the surface has faded over time. In the photo, bottom ...
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Can we glue goza mats on the floor?

Is it possible to cover the whole floor of goza mats and glue the mats on the floor? It is to have the floor look like tatami. I would like to know how to lay goza mats, having it stick to the floor. ...
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Floor insulation benefits?

I am experimenting with a floor design which would be heavy stone slab on a blocking lattice (no floorboards) or maybe on steel joists. Either way, such a design will allow a pretty rapid heat ...
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92 views

how to re-level a floor

i've had a foundation inspector look at my floor: as you can see there is quite a deviance on the right hand side. he says that any future movement is likely to be limited; although, cosmetic ...
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131 views

How to renovate a basement floor?

I'm going to remove a berber carpet glued to a concrete slab and I'm not sure how to prepare the slab for a finished floor. I'm renovating a room in a finished, walk out basement. It's adjacent to ...
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655 views

Gaps in wood floor near heating register

I have a maple floor that is showing gaps near the heating register. Looks like the wood is drying out due to the heat and shrinking. Is there any way to reduce this? Some sort of thermal barrier ...
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448 views

How to level uneven screed?

In my < 10 m^2 basement I have a screed floor which either from the beginning or over the years (some decades) has the following deficits: uneven thickness (10 to 50 mm judjing from the sides of a ...
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138 views

Hydronic Ceiling Radiant

I am looking to install radiant heating in my single-family house (300 sq. ft.), and I am primarily interested in hydronic radiant because my calculated heat loss is likely around 10kBTU/hr, which is ...
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1k views

Strength, weight, cost comparison for Aluminum vs. Framing Lumber floor joists

I'm considering using Aluminum (I beams or other shapes) instead of Framing Lumber as the material for the floor joists in a residential remodeling job. The finished floor I intend to support with ...
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2k views

removing a transition strip between linoleum and hardwood

I am going to tile an entrance way that is currently linoleum. The transition strip between the linoleum and a hardwood floor is glued down, it appears that it may be construction adhesive, very ...
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136 views

Large aquarium floor load

I'd like to put a 125 gallon aquarium in my entry area with a 55 or 75 sump tank underneath it. All told, I'm looking at likely 2250 to 2500 pounds over a base that's no more than 5 feet long by 20 ...
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39 views

Best/good way to remove linoleum squares on pine flooring

I have pine wood floors I want to refinish - but on top of the floor are square linoleum tiles. The adhesive is really strong. I tried pulling some up but it seems like a laborious task. I am also ...
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2k 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 ...
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replacing subfloor

How does one replace the sub floor? I will redo the bathroom and need to get to the pipes under the sub floor. This is the first layer of flooring... so it is installed before the walls went up. ...
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598 views

How do I replace 2x4 outdoor decking with 1x4 hardwood decking?

I have a small entry area deck outside my front door, roughly 70 sqft. The deck is currently made of 2x4's and a few 2x6's screwed into ~16" on center floor joists. I replaced the front door and ...
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202 views

How to install bathtub

I want to install a tub on basement bath where drain pipes are already installed and sticking out from concrete floor. I need to know how to raise the level of the tub from the floor in order to have ...
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Thin plastic floor covering

I have laminate flooring coming right up to the base of an external door. This door gets a lot of footfall, and has started to wear the top surface of the laminate where it meets the base of the door. ...
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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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152 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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6k 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
64 views

spa weight of 4,250 lbs

I have a pre-existing patio and would like to add a spa tub which weighs 4,250 lbs filled with water. Unknow is, re-enforced with re-bar? the exposed one side appears to be at least 18 inches thick. ...
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705 views

Is this mold, mildew or just dirt?

We just removed some molding from our floor only to reveal some kind of black substance that looks like dirt. We are not sure what it is. See the following photograph.
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150 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 ...
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189 views

how to repair garage concrete threshold

I have a really badly cracked concrete floor at the garage's threshold, looks like the previous owner just slapped concrete on threshold, and it has broken in pieces. What is the right way to fix it? ...
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227 views

Advice on building a livable cabin floor on a concrete slab with insulation and plywood

I'm planning to build a 10 x 12 living space based on a shed design. The shed will rest on an existing concrete slab therefore my plan is to lay 6 mil polyethethylene sheeting and foam board ...
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4answers
758 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? Or ...
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101 views

Mystery iron rod/how to remove?

I have a 1947 pier and beam house with an L shaped iron rod through the floor in a hallway closet. It moves up and down but will not lift out completely. I thought it might control the vents under the ...

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