Questions tagged [structural]

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

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98 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-...
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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 ...
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58 views

What are the requirements for a header for an open passageway through two rooms?

My question is for both load and non-load bearing walls. There used to be a hinged door between the kitchen and dining room, who knows when it was removed (I've been here a couple years). The door ...
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26 views

Should I be concerned with the condition of the bearing end for this lintel?

Having stripped back the wallpaper in our living room in preparation for a re-skim of plaster, we have discovered a door which we didn't know existed, right next to the door into the living room from ...
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1answer
177 views

Load bearing wall or not?

I have a 10ft wall that spans only a third of the width of the house but is perpendicular to the 20' long 2x10s below it. One end of the wall could transfer load to the foundational wall but the rest ...
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171 views

Can I remove perpendicular ceiling joists in porch

I have porch attached to the exterior wall of the house roof is pitched away from the house: I am in the process of gutting it and want a vaulted ceiling. There are ceiling joists running ...
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1answer
331 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 ...
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118 views

Retrofit Foundation Posts/Beams

Bought a new (old) place and our inspector pointed out beams/posts that need framing/structural straps in the crawlspace. Ballpark estimate I got from a foundation contractor (site unseen) was a $3,...
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826 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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370 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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147 views

Relocating a toilet without weaking floor joists

Can I drill a 4" hole in 2" x 10" floor joists 3' 6" from end of wall? I'm located in Ontario Canada if this is relevant.
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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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68 views

Concrete slab between stories

Here in the U.S., pretty much all the houses, even those that are made of brick, have framed floors, meaning there are 2 x (usually 10) joists from one side of the house to the other and then OSB ...
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99 views

What aspects of bricklaying are most important structurally vs aesethically

I've seen homes where the mortar is squeezing out between bricks. This appears pretty sloppy must still be structurally sound. It seems that the pointing of the joints is just an aesthetic choice. ...
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1k views

DIY Camper, framing advice needed

So my little teardrop trailer plans have changed into a 12'x6' camper so that I can stand in it. I'm in the planning phase still. What I'm doing for the walls is 3 layers; an outer 1/2" board, a ...
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1answer
568 views

Should I use non-shrink grout to help with support posts?

I am installing a new, approx 16' support beam in my house, to be held up initially by adjustable jacks, and permanently by 4 4" wooden posts. Some time ago I saw on one of the construction shows an ...
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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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53 views

Calculating Tie Plate loading and double shear

I am considering the use of L strap ties from Strong Tie. I will be connecting two 4x4's in an L-configuration. The image at the very bottom-right corner of the below PDF illustrates exactly the ...
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806 views

Minor Crawlspace Excavation: Need permits/structural engineer?

Background: First house, built in the late 60s, bought in October 2014. Original house has crawlspace with combination cinder/concrete foundation. Master bedroom is an addition to the house with a ...
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577 views

Information resources for Traditional Japanese Homes

My family and I are preparing to purchase a more or less traditional Japanese home in Hawaii. I am checking up on the claims that it was brought here from Japan and built in 1965. Interior ...
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440 views

Is this vertical gap in the concrete block foundation something to worry about?

I'm looking at a home that has a vertical gap or crack running the height of the exposed concrete block foundation. The crack is near the center of the home, about a foot to the right of the concrete ...
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2answers
7k views

Filling a hole made in a wood stud

Bottomline, I think I've made a huge mistake. I was drilling through studs in a load bearing wall to pass a cable. This is on a doubled-up stud going perpendicular into a joist. Definitely load ...
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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 ...
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2answers
5k views

Maximum span/strength of Howe Truss

I'm considering removing some walls in the center of a home with Howe Trusses (see pic). I know trusses are normally designed to transfer all the load to the exterior walls, but what concerns me is ...
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1answer
67 views

Saggy around sistered floor joist, how to fix?

Our house has a single floor joist that has been sistered running down the center of the kitchen. Sounds great except for the part where all the other floor joists have sagged a little bit and now ...
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2answers
66 views

How to learn house construction? [closed]

I want to learn house construction engineering in very cold climate (Sweden), wooden and brick. It should cover the following questions (you don't need to answer it): How the roof, walls and ground ...
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2answers
807 views

Best way to support carport posts

I'm wondering to reinforce the posts in my carport as it seems one good earthquake could throw these off. Any thoughts on building a form out of wood and pouring concrete around and half-way up the ...
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3answers
2k views

replace load bearing post with steel column

So I have a joist that stops short of a stairwell and doesn’t connect to the foundation and I’m going to move the supporting beam back 2 feet (it’s about an 8 ft run between the header and other ...
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2answers
1k views

Replacing a spanned “beam” with a cantilevered beam

I have a support post in my attic that is holding up one side of a minor ridge beam. The post is sitting on two 2x6s on their backs, and which span 20 inches. Yes, these 2x6s are not on edge -- they ...
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3answers
115 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 ...
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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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2answers
139 views

Is this wall in my kitchen load bearing?

Sorry for another one of these questions but here goes: My house is a single story bungalow, built in 1976. I can't get hold of the blueprints because the city in which I live does not keep ...
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1answer
401 views

Determine load bearing wall

I recently purchased a small home in a very rural area (in other words, no original blue prints at the recorder of deeds). The home is sitting on a concrete slab and is a single level. I have ...
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2answers
2k views

Will a 4x6 substitute for a doubled 2x6 header?

I am replacing a 3 ft single pane window with a 4 ft double pane window. The old header was just a single 2x4 laid flat with 2x4 cripple studs spaced 16 inches. My question is: can I install a ...
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3answers
792 views

How to spread load of fish tank

I am adding a large fish tank (65 gallons) to my second floor and would like to make sure to distribute the load across as many joists as possible. Is my best way of doing that to build a long, short ...
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2answers
66 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 ...
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1answer
43 views

Structural impact of removing windows from formally exterior wall

Our 1950s ranch on slab was added on to some time in the 1990s. A wall of rectangular windows that used to be a perimeter/outer wall, is now an interior wall. Surely it's structural, but are the ...
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1answer
106 views

Determine which way to place beam for maximum strength

I have a 4" x 6"-16' treated wooden beam. I am trying to determine which way the beam should be placed to provide the most strength for the decking.
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2answers
2k views

can I remove 1 collar tie

I'd like to create a small storage space in my attic. The beam in Red is low and just gets in the way. Can I remove one of the Red beams without causing structural problems? I am willing to put in ...
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1answer
325 views

What's the best place to get a single steel I-beam?

I am knocking down a structural wall in my house and replacing it with a steel I-beam. Where would I get that kind of thing? I am not even sure what to google. The beam is going to be about 20' long ...
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2answers
4k views

Rebar cattle guard

Rebar cattle guard plans http://spofu.com/yay/cattle-guard-plans-rebar.jpg Looking for a cattle guard that can be made from available supplies at local home depot. Needs to be able to support 32,000 ...
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1answer
229 views

How much does weight affect a house?

I just demo'ed a bathroom. At 50 trashbags at 50 pounds a piece I am guesstimating that I took out 2500 pounds. The materials I am using to replace everything in the bathroom are about 800 pounds ...
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2answers
52 views

Using sheathing as siding?

I'm building a rustic cabin this summer and looking to keep construction cheap and simple. Are there sheathing materials that can double as siding that folks would recommend? The cabin is small, 12'...
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1answer
94 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!
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1answer
28 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 ...
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1answer
106 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 ...
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2answers
76 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 ...
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2answers
106 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 ...
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1answer
68 views

Open load bearing wall

There's a wall in my house that I'd like to open to widen a room. The beam (a single 6x10 of hard wood) above is sitting on the concrete foundation at each extremity of the house (10in wide concrete) ...

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