Questions tagged [structural]

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

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2answers
986 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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2answers
385 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. ...
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0answers
22 views

Installing new basement post to support first floor post

I am opening a first floor load bearing wall 15 feet wide . This wall sits one foot off from the basement center steel beam, with 2x10 joists 16" on center. The engineer has specified the first ...
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33 views

What size LVL beam to replace 17 foot load bearing wall (marriage wall) on first floor of two story colonial modular home

We are currently in the process of opening up the space between the living room and family room on the first floor. The house is a 2 story, 2600 square foot colonial modular house. The wall we would ...
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1answer
53 views

How to get electrical from the side of a beam into a wall under it without crown moulding?

I'm partially finishing an unfinished basement, and part of that involves installing a wall. I put the wall in the 'natural' place right under the central beam supporting the middle of the house, ...
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1answer
183 views

Is a soundproof stud wall made of 38 x 63mm CLS strong enough?

I'm building two stud walls joining at a right angle to create a small room in the corner of a larger room. The timber I'm using is 63x38mm (2 1/2" by 1 1/2" - actual measurement) CLS. One wall is 2.4 ...
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3answers
180 views

House shakes violently at least once a day

Summary: Our house shakes and sways for an instant almost every day (it feels like a car just ran into it) and we're worried it may one day collapse. Any suggestions as to what it could be? How to ...
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2answers
1k views

When sistering a joist or rafter, must the ends of the sister be supported?

When sistering a floor joist, must the sister be full length to the original joist and must the ends of the sister be supported on a sill or beam for the sister to be truly effective? Assume the ...
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0answers
32 views

Filling first concrete floor with Autoclaved aerated concrete (AAC) brick to 3 feet height is good?

First concrete floor is with 500 sq.ft. area. Out of this, 200 sq.ft. is in projected form for about 3 feet height. So, we are planning to fill in with AAC blocks up to 3 feet height for the rest of ...
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1answer
94 views

How serious are these cracks in drywall and foundation?

I just bought this 20yr old house a year ago and now I am noticing crack indoor as well as on the foundation. Indoor crack goes all the way across the ridge of the angled wall and down to the corner ...
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41 views

Can I replace two 2x4 jack studs with a steel bracket attached to side of adjacent 6x6 king stud?

As part of my kitchen remodel, I want to move my refrigerator into a closet. In order for the refrigerator to fit width-wise, I need to remove two jack studs on one side of the closet that are ...
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30 views

What’s the ideal overhang for a 26’ LVL beam?

We just installed 3 LVLs (3) x 1 3/4x 24” x 25’ . Can someone recommend the ideal overhang on the posts for a beam this long? The engineer recommended 8’’ hang on the post on each side, but my ...
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2answers
2k 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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1answer
472 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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5answers
15k 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 ...
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0answers
25 views

Can I make hole above a lintel for a flue

I'm doing some work on a flat and want to move the boiler higher up than it is. That means putting a flue above the window. The problem is I'm the second to top floor flat. As you can see from the ...
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1answer
21k views

Is my rapidly failing foundation dangerous?

I'll be succinct. I'm afraid we're having a full structural failure. Over the past week, crack after crack has been appearing in our plaster and walls. I'm honestly concerned for our safety. Our ...
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2answers
162 views

Are these walls load bearing

Looking to remove the closet and wall in this restroom. Already had a structural engineer look at it before I removed the drywall. He only checked the studs with a Franklin stud sensor and didn't go ...
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1answer
119 views

Why is my cottage wall bulging outwards? [closed]

Purchasing a cottage and trying to figure out how much work/money it'll be to repair an odd bulge in the wall. The south side wood wall is bulging out near the center. Although not clearly visible in ...
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2answers
2k views

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

Last year, we bought a house built in 1986. 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 ...
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2answers
1k 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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3answers
649 views

MC Cable through double 2x4 top plate

I'll be newly wiring a room on the second floor, in this case putting in outlets. The house is old, balloon frame 2x4s, with a double 2x4 top plate that the rafters rest on. I have 250 feet of 12/2 mc ...
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2answers
54 views

How to detect a load bearing wall?

Hello - I attached a quick picture to help determining whether the kitchen wall is load bearing. when I checked my basement, it has set of four concrete square pillars (not in the center but towards ...
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1answer
113 views

Unsupported joists in attic?

In my attic there is a beam that ends 80% of the way through. A few of the joists are connected with nails but are unsupported laterally. Should these joists have better support?
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1answer
52 views

Rotating a staircase and making a new landing. How do I support it

I am looking to rotate this staircase. Instead of descending in a southerly direction, I would like them to descend to the east. To do that my plan is to make the top step (step 5) into a landing and ...
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2answers
3k views

Can it be appropriate to orient a 2x4 “wide side out”?

When we frame walls, we normally orient the 2x4 with the thin surface facing outward. What are the consequences of orienting the 2x4 so that the wide surface faces outward instead? Does the wood ...
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0answers
75 views

What is the right way to plumb bathroom drainage across small joists?

Finished the demo part of the bathroom remodel to find pretty significant damage to the floor joists caused by the original builder's "design" (see photos/video). Setting aside how I'm going ...
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3answers
129 views

Can I put holes in every floor joist?

I have a detached workshop (30'L x 25'W) with two levels. The second level is mainly (only?) for storage (floor is 3/4" plywood and can be seen in the picture). The floor joists of the second ...
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3answers
106 views

How to attach single step for deck where deck rim joist is not low enough to overlap step rim board

Similar to this question. I am trying to attach a single step to a deck located adjacent to a patio, a setup which looks like this: I'm trying to figure out how to secure the step effectively. Here ...
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1answer
36 views

Shed Roof is Black and Has Water Damage

my Dad's shed had a roof that he didn't take care of for a while and now appears to have rotted in several regions. I'll provide several pictures, but the video is best: Link What is the best way to ...
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1answer
37 views

Steel stair stringer size

trying to design a straight stair run using steel tubes as stringers. total run = 10'-0". total rise is 8'-8", width 3'-0". Support is only at each end. yes these are steeper than ...
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1answer
52 views

Garage ceiling joist support for studio apartment?

I bought a house with a 24x24' attached garage. The rafters above the garage has a cape cod style. There's already a door in the attic space leading to the outside (2 stories up with no staircase....) ...
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0answers
27 views

Is lag bolting ledger board into foundation safe for overhead storage?

I'm planning a project for an unfinished room in the basement and I have an important structural question. There's about 15' of vertical space but I want to build 10' ceilings with access to overhead ...
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1answer
70 views

Lime mortar mix ratio

I am going to repoint an old interior brick wall (This is my first time) but the problem is that, I do not know what the best lime-to-sand ratio is? 1:2, 1:3, 1:1, 2:2 or something else? I want my mix ...
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1answer
129 views

Rough opening is too small for sliding patio doors

Just before installing a sliding glass patio door today in our self-built home, we measured the rough opening and it is 1-3/4 inch too short for the height of the slider. (The slider is 6 feet wide by ...
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3answers
69 views

Is it possible to cut a larger opening in this window / serving hatch of this pool house?

I'm curious if it is possible to cut a taller opening in this pool house or if that would create structural issues supporting the roof From the inside you can see I would remove the 3 stubby studs ...
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5answers
5k views

Can I put a 6" hole in this ceiling joist?

I'm working on my kitchen to add a range hood that goes outside the house. I'm putting the 6" exhaust pipe in my ceiling, between my 1st and 2nd floor, going in the direction of the ceiling ...
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1answer
49 views

Can I put a “U” turn in my range hood exhaust duct?

In the photo below The red arrow represents the direction of the exhaust, as you can see there is a load bearing joist in the middle which I can't cut. I'm planning to build a recessed ceiling on that ...
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1answer
4k views

Replacing rusted metal front porch posts

My parents' front porch is surrounded by old medal posts that have undergone a lot of rust over the years, and this spring we noticed that at least one of the posts is no longer connected to the ...
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2answers
39 views

Mounting bat house on cedar siding - too heavy?

I have built a pair of bat houses using these plans at Bat Conservation International. A finished house weighs about 25 lbs (11 kg) and I would like to attach it to the outside of my house, over ...
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3answers
138 views

Why is double plate necessary in this case?

I'm creating a 10'8" opening to my kitchen. The architect proposed a double top plate with king stud, jack stud and (3) 2x12 header but would not explain why. The existing framing does not have ...
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1answer
126 views

Adding blocking between joist to support column?

I have this drawing for open up the living room wall. The architect is proposing a 5-1/4x16"x16' lvl beam with 5-1/4"x7-1/4" column on each side and adding 2x8" blocking btw. ...
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2answers
419 views

Will 2x10 joists span 10 feet between rims for a cabin? [closed]

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?
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0answers
68 views

Best way to fill large (3") vertical crack in solid brick party wall?

I live in an East Coast row-house built in the early 1920s. There is a 3" crack in the solid brick party wall that I need to address (see photos). My neighbor's baby's room is on the other side ...
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3answers
196 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 ...
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1answer
434 views

Do I need a lintel on a non-load bearing wall?

I'd like to knock through an internal, 8cm-thick wall in order to install a door. The door will be sliding, and the sliding rail will be drilled into the wall above the opening. I know lintels are ...
25
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3answers
6k views

Diagonal brace left in the basement by builder. Can I remove it? Replace it?

I have a diagonal brace running across an interior wall in the basement, and it even goes partially into the floor concrete. Is this meant to be permanent, or was it supposed to be removed during ...
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1answer
57 views

Floor frame for 8' wide shed is 3" too wide on either side

I'm currently building an 8' x 13.5' shed with a loft. Here is what it is supposed to look like (according to the plan): For a few reasons, the floor frame is too wide. I poured the piers slightly ...
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0answers
24 views

Reflooring a horse trailer

What kind of treated wood thats is 1 1/2" thick x 6" or 12" wide will support roughly 300lbs per hoof.
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1answer
34 views

Concrete block water wall footing requirements

My wife and I would like to build a 6 foot high, 8 foot long fountain wall, using concrete cinder block that will then be covered with stone veneer. My question is regarding the footing. We obviously ...

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