Questions tagged [structural]

Questions about the structure of a building (i.e. moving, adding or repairing walls).

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2
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1answer
19k views

How can I calculate the yield strength of steel tube?

There's a lot of information -- and even some debates -- on which has a stronger yield strength between square and round steel tube. The majority points to square when the dimensions are equal at the ...
1
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1answer
40 views

Can I Notch a Double 2x12 Floor Joist Down to 2x6 Size (5.5 inches) if I need a 2x8 (7.25) per My Local Span Table

I have a 12' span with a floor joist that is currently 2 2x12's. It was originally a 16'+ span with an attic opening that was 3' wide thus the reason for the double 2x12's. I'm installing an L ...
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2answers
46 views

Creating deck on top of single story flat roofed home

I have a rectangle home that measures 20' wide by 40' long with a giant chimney in the center that spans down through the kitchen and based in the basement. The chimney has a 3 sided fireplace on one ...
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2answers
114 views

Span between wood post for stilt cabin

I intend to build on Weiss Lake in AL. If I use 8x8 posts, can I span 10 ft with 2x10 or should it be 2x12 for the floor joists? Also was wondering for the foundation can I just sink the wood post or ...
2
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2answers
82 views

How can I prevent post support brackets from creaking under foot traffic?

I (well, a contractor) added a new addition to my house, and the floor creaks when I walk on it. I crawled under the addition and identified the problem. On each footing, there is a steel bracket ...
2
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1answer
62 views

Hang punching bag in finished basement

I have a 40lb punching bag that I want to hang for kids but I want to do this in a way that I can upsize the bag as needed. My basement is finished, and I'm ok with cutting out some ceiling drywall ...
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2answers
110 views

Looking for a practical way to find the metal posts locations in finished walls

I am looking for a practical way to find metal posts location in a finished basement walls or finished ground floor walls. I am trying to understand how my house was built. I would like to remove a ...
2
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3answers
439 views

Does this truss have two or three bearing points?

Part of my roof is made from studio trusses as shown in the picture. I'm trying to determine if any of the load from these trusses is borne by the highlighted wall. The wall is built with 2x6s, but ...
1
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1answer
55 views

Adding a 24" closet door to interior shear wall

Does the wall in the image need additional support? I intend to put a 24" wide closet in a hallway. The Wall has a diagonal beam going across it. I believe the beam was put there for shear. Supporting ...
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3answers
86 views

Can I reuse the garage door rail when replacing the garage door opener?

I have a chain drive garage door opener. The sprocket on top of the garage door opener broke off so the chain isn't connected to the garage door opener anymore. I want to re-use the garage door rail ...
2
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3answers
1k views

Are window air conditioner support brackets designed to support a window air conditioner by itself?

I have this air conditioner that is designed to be used with vertical sliding windows. The problem is that I have a horizontal sliding window. I understand that the air conditioner I have is designed ...
0
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1answer
69 views

Structural boards in attic?

I want remove the header to install floor to ceiling closet doors for our master bedroom. In the attic above the header three boards sit and run to the roof (see picture). Are these boards structural?
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2answers
68 views

What is the best way to hang a weight lifting pulley system in my detached garage?

I want to hang this pulley system in my garage (partially pictured above) and probably will be loading it up somewhere between 100-200 lbs of plate weights: https://www.spud-inc-straps.com/econo-...
1
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1answer
59 views

Are these boards above my garage structural?

I started laying out some plywood for storage above my garage, and was wondering id these 2x8's can be removed to make a flatter space. I saw someone refer to them as "catwalks", though I can't find ...
2
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2answers
79 views

Can my house support a bathroom addition?

When I bought the house, it was a 4 bedroom, 1 bath rancher with basement laundry. We have since "converted" the smallest of the 4 bedrooms to an upstairs laundry, and took the closet out to ...
2
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1answer
2k views

Converting closed tread stairs to open tread stairs

hopefully I'm using the right term. It might be called closed stringer stairs to open stringer (on one side). Please correct me so that I know the correct term for this. I also refer to it as "cut-...
2
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1answer
68 views

What size should sistered joists be when repairing a cut joist?

I need to repair a cut joist in my kitchen floor. I was going to use a header and sister the joists on either side of it. Question: how do I know what thickness of a header I should use? What about ...
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2answers
103 views

Need to attach shelving unit to wall; what kind of wall structure is this?

I live in an Australian inner city apartment built in 2007. I want to attach a shelving unit to a wall but haven’t ever done this before, so I want to make sure to do it properly. I’m not sure exactly ...
0
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1answer
93 views

Is the wall load bearing?

I was hoping to open up my kitchen to living area and make an island where it the pantry and coat closet is. All I have are these floor plans. Is that wall structural? Thanks!
1
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2answers
166 views

How to reinforce bowing foundation?

Please note: I am obviously not a tradesman, otherwise I wouldn't be on this site asking this question. However, in five years of home ownership I have: re-roofed my garage, resanded all the hardwood ...
40
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4answers
23k views

Are there ways to determine if a wall is load bearing?

Other than looking up blue prints, which many homeowners may not have, are there ways to determine if a wall is load bearing? Methods I can think of might include: Going up in the attic to check if ...
0
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2answers
41 views

Remodel Planning - working with or fixing present issues

I own a house in the PacNW, and am starting to plan out a fairly extensive remodel. The house has issues, however, that I want to fix or work around, and I am trying to get an idea of how extensive ...
0
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1answer
23 views

Shortening Roof Rafters for Flat Roof Addition

I'm in the early stages of planning an addition which will involve extending a flat roof out from a sloped roof. Are there reference sources/videos/etc out there discussing approaches to shortening ...
0
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2answers
963 views

Structural (cored) bricks for a patio?

I have the opportunity to purchase some pallets of structural bricks, the cored ones with three holes in them. I want to use them to build a patio but I live in Ohio where the winters can get harsh. ...
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2answers
65 views

Is this gap at the base of my wall allowing water to enter?

My apartment is at the ground floor of a 4-floor building. Between the walls of the building and the ground, there is empty space: It is sufficiently wide to insert a palm, and from the outside, it ...
1
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1answer
48 views

How to demo a partially structural chimney?

Just bought a new home and would like to remove its chimney. It was originally built on the outside of the home and they built a carport up around it. It looks like it may have sprung a leak, so the ...
1
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1answer
309 views

How should I compute the clear span of a purlin in a roofing system?

My house employs purlins to support the roofing rafters. (this video explains almost perfectly what I have in the house). There are two purlins, about 6 feet from each other and the top ridge of the ...
0
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1answer
277 views

Aluminum vs galvanized vs stainless tubing for fence with railing?

I'm building a simple fence that's composed of 1" or 1.5" OD x 0.065" wall x 4-ft tube soldered to a stainless steel base that's bolted to concrete. This fence will have a wood rail at the top. ...
0
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1answer
402 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 ...
2
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1answer
43 views

Remove support under the interior stairs

Hi I’m putting storage space under my interior stairs. The area I want to open up has a piece of timber right in the middle. I’m hoping some one can tell me if it can be removed? Pic1-Purple is the ...
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2answers
103 views

Do joists need to be attached to the beam they're resting on?

Installed a 2 x12 x10 header opening that supports the above floor joists. Wanted to know if the header needs to be toenailed to each joist resting on it?
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1answer
75 views

Please help - wonky post location on pergola - concerned with shearing and stability

So ever since my wife pushed me to move the post off square I've been searching online (periodically for about a month and I've never found someone dumb enough to have done this and had a tutorial or ...
6
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2answers
3k views

Closet Wall, is it Load Bearing?

Trying to figure out if the front wall of this pantry cabinet is load bearing. We'd like to remove the front of the pantry and install cabinets here instead of the closet, but unsure if we can pull ...
0
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1answer
27 views

Fix attached laundry room roof framing

I have a laundry room attached to the back of the house (was done by previous owner). Recently I found a leak (due to some nail wrongly on the shingle exposed). But then when I "uncover" below the ...
2
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2answers
516 views

Wood creaking sound (intermittent, but persistent), how to finally put it to rest

So we bought a house built in 1986 last year. Over the past year, I've been able to identify a single (and I do meant SINGLE) knocking sound which generally repeats every 20-60 seconds until I go to ...
3
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2answers
1k views

Reinforcement for Ledger Board on Bearing Wall

I'm helping a friend remodel an old addition on his house. We've uncovered a construction technique that may have been normal 60 years ago, but isn't up to the standards of today. I'd like to know if ...
0
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1answer
100 views

Why were these load bearing walls not stacked?

I was making a model of a house to help design a renovation and in my measuring I discovered that the center load bearing wall on the first floor was not centered over the load bearing beam and ...
7
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5answers
3k views

Repairing a notched floor joist

Situation I was running some new gas pipe and I notched one floor joist and drilled a hole in another. I have now learned that this is not appropriate. This was in the forbidden zone of the middle 1/...
0
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2answers
73 views

Basement Renovation - Column Move?

I'm finishing a basement and I'd like to see if it's possible to move the ceiling jack post that holds the beam where the floor joists sit on. I currently have a 12 foot span between the cinder block ...
27
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5answers
10k views

Is it unsafe to remove one stud from a load bearing wall?

I need to cut a hole for a recessed medicine cabinet. This wall is at the end of the house. I only need to cut one stud to make a frame for the cabinet. Will this damage the integrity of the bearing ...
3
votes
2answers
182 views

Do these “rafter ties” tie anything together?

I've been wondering if I can open this ceiling up for a tall room. I've been reading that the ceiling joists are often also rafter ties so I went up there today to take a look. I can see a few are ...
0
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0answers
58 views

Frame a jack stud without bottom plate?

I need to frame a small header in my kitchen exterior wall for a range hood exhaust because the 8" hole is dead center on a stud (of course). It's a 2 story 1941 house with 2x4s 16 on center. The ...
0
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2answers
83 views

Reason for no header spanning this load bearing wall?

I'm fairly certain this is a load bearing wall as the beam in the basement is directly below this wall. My question is, shouldn't the area pointed at with the white arrows have a header if this is a ...
6
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1answer
440 views

Should I replace a carport post as it was originally built or with an upgraded column?

I’ve got a 60s era carport with a rotted post. It’s a low slope cantilevered roof about 20 feet long. It has two posts on each corner at the front, and the back is supported by the house. The rotted ...
0
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3answers
121 views

Any chance a studded wall is a supporting wall?

I'm taking out a wall between two bedrooms to make it into one. This is a studded wall that was the back of the closet in one of the bedrooms and the wall in the other. This is underneath a flat roof ...
1
vote
1answer
148 views

Can you install a steel beam in timber posts?

I'm planning to remove a load bearing wall and place a 4500 beam. Steel is stronger than timber and I should be able to use a thinner steel beam than a timber beam. Does this make sense and how do I ...
2
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0answers
44 views

Temporary supporting rafters in the middle for beam installation

I am intending to remove a load bearing wall that lies between the old perimeter of the house and the new extension. It is holding the extremities of the old roof rafters as well as a wall holding ...
1
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2answers
70 views

Is adhesive to sister a pressure treated deck joist necessary, and if so what kind?

My deck has a cantilever of about 4 feet from the girder to where the stairs attach, and the stairs tend to have a bit of a spring in them when you walk up. I want to solidify it a bit by sistering ...
1
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2answers
274 views

Advice on supporting a sagging bay window

We have bay window that has sagged enough that that windows are out of square and no longer open or align properly to get a good seal. As such, they are drafty in the winter and we can't open them in ...
0
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1answer
163 views

Can I Move Interior Load-Bearing Walls Without Changes/Additions to Beams/Piers/Foundation?

I'm trying to determine if I can make some changes to my house's interior walls without making changes or additions to the underlying beam/pier/foundation structure. I have attached a drawing of the ...

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