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Questions tagged [joists]

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

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How to insulate Rim Joist with no sill plate?

I recently had an energy audit/blower door test on my 1963 single-story ranch home in SE Michigan. They noted a lot of air infiltration along the baseboards, and recommended pro sprayfoaming the rim ...
sonoflee's user avatar
2 votes
0 answers
331 views

Would there be any code requirements in the way of leaving roof trusses and attic above a habitable room exposed for an industrial look.?

I am working on remodelling my house and want exposed ceilings in some rooms. The roof was recently replaced and r-35 insulation was installed above my roof decking. All interior walls were framed and ...
Queen Brina's user avatar
2 votes
0 answers
2k views

Rim joists sitting on top of notched post

My older deck doesn’t have a beam. Instead, the rim joist is attached to the 4x4 posts, most of which are notched and serve as both support for the rim joist and continue up as railing posts. I ...
Logan Berries's user avatar
2 votes
0 answers
710 views

What's a low depth floor joist solution for 2nd floor with 4x4 floor joists?

My goal is to meet the code requirement for the strength of the floors on a 2nd story for a remodel. I am remodeling a house where the floor joists supporting the 2nd floor are nominal 4x4 (3.5" ...
DIYWeary's user avatar
2 votes
0 answers
178 views

Can I flip any hanging beams flat on their side?

The framing in my attic is annoying because it's very difficult work near the roof edge, due to the presence of what I think are called hanging beams -- large timbers on edge attached to the tops of ...
FMc's user avatar
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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 ...
JCK's user avatar
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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 ...
user3011458's user avatar
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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 ...
DoughBoy's user avatar
1 vote
0 answers
113 views

Proper Joist Installation to fix Subfloor Overhang

I am currently doing a full bathroom remodel on a house I just bought. The entire floor was rotted, so I had to remove it all the way down to the joists. I am planning on sistering two of the joists ...
Jackson's user avatar
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184 views

Necessary repair of termite damage to floor joists in crawl space?

I have what appears to be some minimal termite damage to a few floor joists near my front and back porches. No floor sag or leveling issues that I am aware of. There is not a current infestation. I ...
Mike's user avatar
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How to identify ash deafening in the joist bay?

I have a Queens brick Townhouse built in 1906. I was attempting to repair my basement ceiling joists and found several joist bays under my front door threshold/atrium with wooden boards encasing what ...
MonkeyBonkey's user avatar
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Floor joists on 2x4 ledger

My floor joists are sagging off of the main beam by 1/2” causing the floor upstairs to be uneven only where the end of the joists meet the beam. The joists are notched and sitting on a 2x4 ledger. ...
Greatwaytobreak 's user avatar
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607 views

Unsupported span of 4.3m as a mezzanine floor - what size timber and how to attach it to the walls at either side?

I'm building an internal mezzanine floor in a tall and wide room. The room is 4.3m wide and the mezzanine floor will cover half the room area - so there will be a beam that goes from one wall to the ...
Luke Smith's user avatar
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1k views

Proper way to reframe joists to install attic ladder?

I'm looking to replace the attic ladder with 25.5 x 55 opening ( Century Elite AL2511R5 ). After removing my old ladder, the opening looks like the following : I'm looking to change joists as follows ...
Andy's user avatar
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1/2” Vertical Hole in Floor Joist - What to do?

First post here, hoping to get some help. I was recently trying to run a coax cable from my crawl space into my home office (there was an existing coax drop, but the cable seems to terminate somewhere ...
Shultzy's user avatar
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Garage Ceiling Truss Load and Distribution Options for Overhead Storage

Last summer I hung two 4'x8' overhead ceiling racks by using 4x4's across multiple trusses. The only point that actually share a truss are the mounts closes to the wall. As janky as this is, It's ...
RetroJonez's user avatar
1 vote
0 answers
1k views

hanging a load from engineered I-joist ceiling

I'm trying to figure out the best method to hang a light 4x8 trailer that weighs just under 300lbs from my garage ceiling to store it. I'm planning to use a light electric hoist or ratcheting hand ...
Mike T's user avatar
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1 vote
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329 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. ...
dabi's user avatar
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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'...
Christian Convey's user avatar
1 vote
0 answers
92 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 ...
Mark Bowker's user avatar
1 vote
0 answers
2k 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....
Kalel Wade's user avatar
1 vote
0 answers
685 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 ...
Mark Wascher Jr's user avatar
1 vote
0 answers
272 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 ...
Mike's user avatar
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1 vote
0 answers
230 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 ...
themidnightwill's user avatar
1 vote
0 answers
332 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 ...
Daniel Baker's user avatar
1 vote
0 answers
399 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 ...
to5am's user avatar
  • 21
1 vote
0 answers
711 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 ...
steve's user avatar
  • 11
1 vote
2 answers
93 views

Ideas for Supporting this Joist

I have an unfinished basement and noticed this joist not supported like all the others. Need some ideas how to fix this. See photo. This is the "Good" truss This is the stubby truss. ...
Rick S's user avatar
  • 141
0 votes
1 answer
60 views

Contractor Did Not Follow Code When Drilling Through Floor Joists

A plumbing contractor was coming out to replace some of the old galvanized pipes in our home, and asked if I wanted to run the new pipes through the joists (the galvanized pipes were under the joists)....
pythonweb's user avatar
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29 views

Bathroom remodel - pulling subfloor

I need to pull the subfloor in an upstairs bathroom to re-arrange the drain location. I imagine the plumber is going to cut a section out (rather than the full sheet). The thing that has me worried ...
Joel's user avatar
  • 1
0 votes
0 answers
49 views

Space between deck beam & joist and deck wobbles side to side

My deck wobbles from side to side. So I started looking underneath the deck to check what the issue was and how to mitigate it.  I noticed that the joists are attached to the beam using nails instead ...
sambosma's user avatar
0 votes
0 answers
79 views

Do I need to repair a rotten joist?

While replacing the floor in our small toilet, I discovered that a joist (which is actually under the shower in the adjacent bathroom) has rotted away. The previous owners of the house had badly ...
Rocketmagnet's user avatar
0 votes
1 answer
75 views

How do you properly secure joists/rim joists atop sill/top plates?

Is there a specific Simpson bracket to attach a rim joist to a sill/top plate or do you simply toe nail it every X" into place? I have to use joist hangers to attach joists to said rim joist but ...
Larry Lupe's user avatar
0 votes
2 answers
41 views

Rotted Rim Joist/Sill Plate Behind Concrete Patio

hoping for some guidance on a rotted rim joist/sill plate found in the crawlspace. The rim joist in question runs along the front of the house and is parallel to the other joists. I believe the front ...
gocteam8's user avatar
0 votes
0 answers
30 views

Replacing a small rotted deck, question about framing/step

So the small deck (or patio? it barely feels worth calling a deck at this point) on the front door of my house was rotted and sagging, so I pulled it out. After going over the DCA6 guide, I realized ...
user3397540's user avatar
0 votes
0 answers
28 views

Finding Joists Under Triple Layer Sheetrock

I recently purchased a new home and am trying to add some hanging storage to the garage but I'm struggling to locate the joists for my anchors. After trying multiple techniques to find them (knocking, ...
Ben D's user avatar
  • 101
0 votes
0 answers
46 views

Freestanding Patio Cover Beam Size

Trying to build something like this but with a 16ft span: https://www.backyarddiscovery.com/collections/slope-roof-gazebos/products/12-x-9-5-arcadia-gazebo I'd like to build a slope roof patio cover ...
user1594257's user avatar
0 votes
0 answers
24 views

How to fix a bump over central main beam and level floor?

I reside in a 1950s-era bungalow. In its basement lies a wood beam, connecting and upholding the joists (2x10) through a 2x4 ledger that's been nailed in place. The structural walls on the main floor ...
Laurent Nadeau's user avatar
0 votes
0 answers
44 views

Ceiling joists/false ceiling

I am trying to determine how my ceiling is constructed. I live on the top floor of a building built in the late 1800s/early 1900s. Specifically, I want to know if my drywall ceiling is mounted ...
Cindy's user avatar
  • 1
0 votes
1 answer
52 views

Where to run 4" exhaust fan duct?

I'm installing an exhaust fan in my bathroom. I plan to install it somewhere left of the octagon box that you see in the picture, However, there's a 5 3/4" joist right there. I'm not sure if I ...
Scrap Money's user avatar
0 votes
0 answers
98 views

Wall parallel to cieling/floor joists- is it load bearing?

I have a wall on the first floor I'd like to remove that runs parallel to my cieling/floor joists. This is my first demolition project in the house and I'd love some insight prior to contacting a ...
Acejpg 's user avatar
0 votes
0 answers
40 views

Help confirming this TJI joist can span an opening

I have an interior wall that I'm going to be cutting an opening in. the top plate is a TJI joist. I'm 95% certain it's 20in, but it is definitely at least an 18in (see pic). Underneath the joist is a ...
The Shoe Shiner's user avatar
0 votes
0 answers
59 views

Replacing floor joists?

The house was built in 1976. It has a crawlspace foundation. There are two joining spans with 13 feet in front, 13 feet in back. A central beam between them. The front half of the house has water ...
Please Help's user avatar
0 votes
0 answers
125 views

Making a secret passage to my attic. Can I cut the ceiling joists?

I am putting a secret passage in my linen closet behind a grandfather clock (a la the Webster show) to access my attic. My question is: Can I cut the ceiling joists to make the opening bigger? Here ...
Lala's user avatar
  • 1
0 votes
0 answers
123 views

Can foam jacking restore slope to my front stoop?

The stoop in the front door inclines towards the house and guides the water into the crawlspace. The stoop itself is outside the foundation wall of the house and is not fixed to it. The lower part of ...
bobby_yan's user avatar
  • 161
0 votes
0 answers
249 views

cutting rim joist to run range hood ducting?

We are looking to add an island range hood and ideally would like for a ducted system and not a ductless/recirculating. Kitchen is in the 1st floor corner of a 2-story home. The spanning floor joists ...
mrpoo's user avatar
  • 1
0 votes
0 answers
66 views

Horizontal joist losing support from vertical support joist in Garage ceiling?

It’s happening in few more places which causing horizontal joist turning into little curve. What mending brace plate should I use?
PowerTech's user avatar
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Joist Hanger selection for 6x2 timbers

I am building a garden office, and the base is 6x2s There seem to be a lot of options on which joist hangers to get. And quite huge price differences. Multi Truss joist hanger 47x97 (approx £170 ...
revs's user avatar
  • 101
0 votes
0 answers
65 views

Will my floor hold a wood-fired oven?

I want to add a wood-fired oven to my house. The room that I want to use was added on about 15 years ago and it's constructed on CMUs. The floor joists are 2x10 spanning 14' doubled up at 12" ...
Rick Richter's user avatar
0 votes
0 answers
116 views

Hardwood Floor Repair - Sag and Gaps

Just bought a new home with old - possibly original - hardwood, from '52. There's a relative bulge running down the middle of the house (or it could be sagging on either side) corresponding to the ...
user112697's user avatar