Questions tagged [joists]

Horizontal support structures beneath the floor running between load bearing walls.

43 questions with no upvoted or accepted answers
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1answer
29 views

Is it OK to drill/notch an end joist (not rim/band joist) as long as it's continuously supported by a foundation wall?

I'm in the process of trying to run some CAT6 and speaker wire at various places in my house. One of the things I'd like to do is run speaker wire in the living room to a wall plate behind my sofa, ...
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0answers
82 views

How to repair cut joist around pipe *after* framing and drywall

I'm finishing my attic and have just realized that my rough carpenter screwed up by not addressing a cut joist. In photo 1, you can see that the joists have been sistered with LVLs, but there is a gap ...
2
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1answer
879 views

What's the best way to insulate an attic with 2x4 joists?

My 1938 home currently has zero insulation (aside from a few fiberglass batts haphazardly tossed about). The ceiling joists are 2x4 (spaced 16 inch OC), rather than the more modern standard of 2x6 or ...
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0answers
105 views

Will my garage truss and beam configuration be adequate for a room in the attic?

I am getting ready to finish some of the space above the garage and have some questions. I am located in Pittsburgh, PA. The garage is sloped on both sides down to the floor. I was going to utilize ...
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0answers
877 views

Will insulating rim joist without sill plate lead to moister issues?

The house was built in 1930 and besides some bays stuffed with fiberglass the basement is uninsulated and unfinished. After two MN winters in the house I've managed to fill the larger holes but have ...
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1answer
17 views

Floating Dock Framing Length?

I'm planning on building a floating dock and am looking for advice on framing. More Specifically, i'm wondering if anyone knows what the maximum length I can span between two floats? I inherited ...
1
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1answer
20 views

Leaking PVC pipe & joist notch

I appreciate any help with my problem below. I have a PVC drain pipe that is leaking. The drain pipe is from a tiled shower floor. It looks like the joist is pressed up against the pipe elbow and ...
1
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1answer
185 views

Floor sagging between joist- please help

I recently bought an old home- 102 years old and have some flooring issues. The long story is we bought it knowing it had foundation problems in the rear right corner. The home had a poured concrete ...
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0answers
39 views

Joist span for grade level deck

I have a sunken backyard concrete patio which is sloped for drainage. The slope reduces usability for sheds, BBQs, picnic tables, etc. The space is approx 15' x 25', with concrete walls on 3 sides. ...
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0answers
73 views

spacing of steel studs for ceiling leveling

I'm renovating a single-family basement. The floor joists above the basement are 2x8 douglas fir, mostly spaced 12" OC. The basement ceiling will be finished with a single layer of 1/2" drywall. There'...
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0answers
77 views

What is the role of this telescopic pole-looking item in the ceiling?

I've recently viewed a property and done a first pass at the work that will need doing. But, I noticed this in the ceiling of the stairwell and I'm not entirely sure of a few things: What exactly is ...
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159 views

Sealing fully cast-in floor joists

My house built in 1928 has concrete filled spaces between the floor joists and rim joist. There are gaps in some of them, some 1" wide with most being very small. I suspect these gaps could be the ...
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0answers
824 views

Holes through plumbers box (double header in floor joist)

A joist is right where the drain is for the bathtub and I am looking for a solution to do the plumbing. Currently, the plan is to do a 'Plumbers Box' in the floor joists which solves the initial issue....
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369 views

Sistering 2x8 joists to existing 2x6 under pitched roof

We are going to be remodeling our attic to create 2 extra bedrooms and a living space. Currently there are only 2x6 joist in the attic. We are being told that we should sister 2x8s against the ...
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0answers
174 views

Can a PSL beam support second story joists all hanging from it

My home is a 2 story home, built in 2003. There is one section in the home that was left open to above with approximately a 20' ceiling in this case. This is over the living/dining areas of the home ...
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0answers
118 views

Bottom wall plate half on parallel joist, safe?

In replacing a bathroom shower stall, we are replacing a piece of sub flooring with your typical shower damage to it. In replacing it, I noticed the exterior wall which runs parallel to the joist is ...
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2answers
518 views

How can I fix a squeaky hardwood floor in a small hallway?

Trying to fix squeaky hardwood floor in small hallway, think joists run parallel to floorboards on sides, near or under the walls on either side, can't find any with stud finder that run at 90 degree ...
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0answers
113 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 ...
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264 views

Can these metal ceiling drywall joists be removed?

I recently removed the drywall ceiling from my basement with the intention to leave it as an exposed ceiling. Would I be correct in understanding that the metal ceiling joists (highlighted in blue in ...
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0answers
518 views

How to repair straight cut floor joist?

What's the best way to repair a cut floor joist? It looks like when removing floor boards for remodel, someone has cut about half way through the top of joist with saw straight cut. No notching. I'm ...
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2answers
80 views

Replacing ceiling joists with rafter ties higher up on the rafters

I'm trying to help my grandfather plan for a remodel of his 1950s home. The original structure is 24x24' with 6" rafters spaced about 20" apart on a 6/12 roof. He'd like to be able to have a "vaulted ...
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56 views

Does this joist need to be reinforced?

I'm running some wiring and came upon this. One-story 1952-ish house. Joist is 2x10. Pics are before and after removal of some "support" piece. Looking up at the basement laundry room ceiling. It'...
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51 views

Hanging Ceiling Joists UNDER New Attic Header?

I’m opening a load bearing wall between the kitchen and living room. I’ve overcome the offset basement girder with two new posts under the joists that will carry the new header load down from the ...
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32 views

Sistering to repair sill sag

I just bought a house that had had a water issue around the sill plate. I am going to replace the sill soon but the water has caused a few of the joists to sink about 1/4". How long do the boards i ...
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69 views

Options and advice for two-point aerial yoga hammock

I'm looking to hang an aerial yoga hammock in our garage from 2 attachment points. I'm based in Australia which might change some of my measurements/ratings so sorry in advance! I can use a manhole ...
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2answers
251 views

Remove the wall which am not sure is load bearing wall

I have removed a stair wall but not sure if it was a load bearing wall or not. That’s a stair wall and the house is townhouse and on top floor the wall is not attached to the loft. Added a picture ...
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59 views

Soundproof Garage Ceiling

I’m building a soundproof room in a garage for a friend, after having done something similar for myself, but am not sure about the ceiling. I was planning to use two layers of acoustic plasterboard (...
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1answer
25 views

Remove damaged flooring under edge of fiberglass tub and direction of new underlayment

I am currently living in my grandmother's old house (built ~1940 or before) where I have yet to find any previous repairs done correctly. The house is a two bedroom, one bathroom mill house type ...
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91 views

How to frame corner of staircase header for a stairwell opening? Do you use a hanger here?

I'm designing a staircase and was a little curious on how to frame out the stairwell opening where the header meats the existing joists. There will be a double 1.75"(x2) LVL header joined up against ...
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108 views

Floor Joists And Notched On Sill Plate

I have mastered many things in life, but carpentry is not one. I need to replace some flooring, and floor joist, that rotted from water damage, and it does not look like how i have seen others. The ...
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141 views

Find joists in plaster ceiling

My plaster ceiling is cracking and the advice I’ve gotten is to cover it with dry wall. The issue I’m having is how to locate the joists in the ceiling. Is there an easy way to do this to make sure ...
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46 views

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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43 views

Repairing cut wooden floorboards on either side of the main joists

How do I repair cut wooden floorboards that have been cut on either side of the main joists, as now the floor is squeaking and bouncing all of the time? I have tried attaching baton underneath with no ...
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0answers
214 views

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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0answers
394 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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1answer
281 views

Is joist blocking safe on these old warped joists?

I purchased a house built in 1960 and like other people have mentioned the terrible bounce, I got the same exact situation. I'm thinking of installing blocking to strengthen the floor. The 7 joists ...
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1answer
428 views

Removing diagonal truss brace?

Looking to put insulation, plasterboards on the garage ceiling and some down lighters, Not a massive amount of heavy stuff is currently stored there (primarily boxes etc). There are 5 joists, joist ...
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0answers
268 views

Gap between Joist and sill plate

I purchase a new home and in the basement I'm finding a section of cracked/split joists where the nail was nailed into the wood sill plate. After investigating, this one wall was not leveled with the ...
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0answers
1k 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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413 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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0answers
700 views

Can turnbuckles hold a frame in tension?

I'm building a king-sized bunk bed using a loft/joist design. Basically, I've got (see below): slats nailed into joists joists joined to headers with blind tenons headers joined to posts with blind ...
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2k views

4x4 to support floor joists

I want to use a 4x4 8' with two floor jacks on each side holding it up against the floor joists in the middle of the length. The purpose is for support. We added a lot of heavy mud weight for tiles, ...
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1answer
84 views

Extending joists to reach a new beam. What code to review?

I have spoken with a contractor about removing two load bearing walls (amongst other work). The two load bearing walls are parallel but offset by two feet to provide space for a range/oven in the ...