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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3
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2answers
121 views

How do I remove wax or Mop-and-Glow from Pergo floors?

How do I remove wax or Mop-and-Glow from Pergo floors?
3
votes
2answers
3k views

How do I level a concrete basement floor with a 1" dip?

I want to level my concrete basement floor, but on one end it slants down over 1" (over a 3'x15' run). Can I fill this area before using self-leveling compound, to save money, or what else could I ...
3
votes
2answers
4k views

How to remove a tile with floor heating mat

Two weeks ago I laid 1 X 2 ft ceramic tiles in my bathroom using premix tile adhesive. After reading some reviews, I should have mixed my own - lesson learned. This weekend I added grout and all went ...
3
votes
1answer
11k views

What should be done about water under bathroom floor tiles?

There is water getting under our bathroom floor tiles. The landlord believes that due to a recent remodel of whole bathroom, water is not draining from the window ledge but is instead going into the ...
3
votes
1answer
1k views

What is this burnt cement floor treatment called?

In Brazil we have a floor finish named Burnt Cement (that doesn't involve burning). Here is a description of the process In summary, you use a mix of cement and pigment (sometimes marble powder too) ...
3
votes
2answers
678 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
743 views

What is the proper way to clean a paintbrush and metal pan with KleanStrip paint thinner?

I am finishing my hardwood floors tonight with an oil-based polyurethane. I bought a natural bristle paintbrush and a metal pan, as well as some KleanStrip paint thinner that is "made with Mineral ...
2
votes
4answers
10k views

Is it likely that there is lead in the varnish of my old 1930's hardwood floor?

I have recently uncovered an old (and presumably original circa 1930) hardwood floor in the hallway of my house. Over the past couple of weeks I have been cleaning and sanding it in order to ...
2
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2answers
619 views

How can I drill through a Linoleum floor?

I would like a drill a hole through my dining room floor to run a wire. The floor is carpeted, so I pulled back the carpet in the corner to find an old linoleum floor. I attempted to drill a hole ...
2
votes
2answers
475 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 ...
2
votes
1answer
453 views

What should we do with floor tiles that were applied with Type 1 Mapei mastic?

We tiled a 25 sq. ft bathroom with 12X12 porcelain tiles. Instead of a bag of normal powered mortar (which covered more area than we needed), we picked up the tub of Type 1 Mapei and were told it was ...
2
votes
1answer
100 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 ...
2
votes
1answer
639 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 ...
2
votes
1answer
45 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?
2
votes
2answers
3k views

How can I replace laminate with polished concrete flooring?

I'd like to investigate whether I can replace my first-level flooring - currently faux-wood laminate - with polished concrete. What do I need to know? Is it even practical to put down polished ...
2
votes
1answer
4k views

Is it a good idea to repair a squeaky floor from above?

I have a second floor that squeaks, a lot. Attempts at using scored screws haven't helped much, and the carpet is due for replacement, so there is little concern about pulling it up. A contractor ...
2
votes
1answer
690 views

Is floor paint on concrete purely aesthetic or actually functional?

I have a large thatched barn recently (6 months) laid with a concrete floor to replace the original mud floor. The concrete was dusting badly, especially near where a table tennis table sits, so I ...
2
votes
1answer
46 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 ...
2
votes
2answers
301 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
97 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 ...
2
votes
2answers
436 views

How do I tile over a leveled floor with a feathered edge?

I have a laundry room in a home I just bought which had some unseen water damage. They originally had the sticky vinyl tiles on there which I pulled up. The concrete underneath was pitted and uneven. ...
2
votes
1answer
242 views

How do I fix an irregular hole in my heater closet?

The plumbers cut a roughly rectangular hole in the water heater/heater closet floor when fixing the drain pipe for the condensate line. The closet is located in the garage. There are two 2" PVC ...
2
votes
1answer
104 views

Is it okay to put 3/4“ plywood over 1/2” wood subfloor?

I recently purchased a 2 level condo and took out existing hardwood floor on the 2nd floor. Some of the pieces of plywood is pretty old. I wanted to get an honest opinion on whether I should replace ...
2
votes
1answer
266 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
7k views

How can I level my bedroom floor?

I have a second floor bedroom that is 10' wide by 16' long. The floor is 3/8 to 3/4 then back to 3/8 lower, then 1/4 to the bedroom door. How can I even the floor? I can not raise the new floor ...
2
votes
2answers
212 views

How can I repair a big gash in my kitchen floor?

How can I repair this big gash in kitchen floor (I can see wood) I was cleaning my kitchen floor, and moved the fridge out of the way. Problem is we have our microwave on it with a short cord. ...
2
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2answers
243 views

How can I reduce squeaks in wood floors when no felt paper was installed between floor and plywood?

I've purchased a home where the previous owner installed 3/4" wide plank pine over a 5/8" plywood subfloor. The plywood is glued to a concrete slab but there is no felt paper between the 2 woods. ...
2
votes
3answers
98 views

Timber Veneer Flooring?

We have existing polished timber floors, it is patchy (different parts of the house are floored with different kinds of timber) it also has a few gaps and holes. We are thinking of laying down some ...
2
votes
1answer
126 views

How do I seal the cracks between my asphalt driveway and my garage concrete slab?

I am not sure if this is an aesthetic problem or not. I suspect that if I do not fix the damage properly the water will continue to infiltrate the cracks and it will create larger problems in the ...
2
votes
2answers
131 views

Fixing a creaking NEW chipboard floor

I have a newly created floor (for a loft conversion) that is chipboard over wooden joists with noggins. At present there is no ceiling below it. Some of the joists have been doubled up due to the ...
2
votes
1answer
1k views

How can I add flooring to an attic floor with electrical wires running across it?

Want to floor attic space that has electrical wires tacked to joists. is the best way to notch out additional boards over wires and add to the top of these joists and then floor?
2
votes
1answer
788 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 ...
2
votes
1answer
87 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!
2
votes
1answer
511 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 ...
2
votes
2answers
696 views

Why are my floor tiles cracked and how can I lay them again so they won't crack

When I moved into my house, the kitchen has large floor tiles on the floor. Quite a few of these tiles are cracked. I've been told that the reason they are cracked is because under the floor tiles is ...
2
votes
1answer
460 views

Floor plumbing pipe too far away from the wall for vanity

Floor plumbing pipe too far away from the wall for vanity. I do not want to cut a hole into the vanity shelves to accommodate this discrepancy because the shelves are already shallow with limited ...
2
votes
2answers
108 views

Recommended method to insulate a raised (joisted) floor in the UK?

We're just about to get a new wood-burning stove fitted with an external air feed and have a load of squeaky floorboards which need fixing in the same room, so we're planning on taking the floor up. ...
2
votes
3answers
2k 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 ...
2
votes
2answers
1k views

Building on top of 3/4'' plywood subfloor

I want to build this: http://www.mrmoneymustache.com/2012/12/21/how-to-make-a-relatively-sweet-shower-cheap/ and I'm building in my basement bathroom: on top of the foundation I have 2x4 (horizontal) ...
2
votes
2answers
3k views

How do I repair a marble floor corroded by acid?

I recently got some contractors over to repair a section of my house and they unknowingly spilt a small amount of acid on my marble floor. They did not attend to it immediately and the acid corroded ...
2
votes
3answers
528 views

hydronic floor heating system efficiency - using concrete as thermal energy store or not?

I am renovating my house and would like some advice on floor heating for my living room. I have dug this room out to a depth of 97 cm to create a lower level. I have lined this box with 2.5 cm thick ...
2
votes
2answers
257 views

Is it code to have a concrete floor in a bedroom? [closed]

For some reason I recall that it is Ohio Building code that a bedroom must have a floor finish material other than subfloor. So if you are in a Slab on Grade (SOG) condo, does the code require you to ...
2
votes
2answers
337 views

Soaking tub on the second floor: safe?

I am considering getting a soaking tub (pdf here) for my second floor master bathroom. However, I am unsure of how much weight the floor and walls below can support. The house itself is wood frame ...
2
votes
1answer
109 views

is it OK to lay an engineered wood floor that is 27' long without putting a T-joint in the middle to avoid buckling?

I am installing an engineered wood floor (bamboo). My LR/DR is 27' long. The installer said I ned to put in a T-joint transition between the LR and DR, at the 18' mark, to avoid buckling. I am ...
2
votes
1answer
77 views

How can I remove 6-8 inches of concrete from a wooden floor?

I have inherited a 143 year old building. Somewhere in the past someone poured 6 to 8 inches of concrete over top the wood bathroom floor. I really want the weight out of the building. Any ideas on ...
2
votes
1answer
54 views

Protecting a wood bathroom floor

We recently had our house renovated and two of the bathrooms now have bare wooden floors. At some point I'll get round to putting down tiles or vinyl but for the time being what should I do to protect ...
2
votes
2answers
176 views

How can I level and finish a slanted deck that was enclosed?

Hello everyone I am new to this so I apologize if I seem a little slow mentally. I have a 104 yr old home that at one point had a deck that was completely enclosed. my issue is that the floor was ...
2
votes
1answer
87 views

Should I install a moisture barrier before installing engineered hardwood in a partial basement?

I am thinking about using a 6 mil poly and a thicker sound/water barrier to make walking on the floors a bit softer. I plan to tape (or use silicon) as a means to seal moisture. My question is, is it ...
2
votes
2answers
196 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
150 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 ...