Questions tagged [structural]

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

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1answer
31 views

How to make a floor?

OK, that's a very broad question. Let me give the details: We own a very old (estimate: about 100 years) rural house with some land. My wife spent lots of her childhood summers there, our kids like ...
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1answer
35 views

4x6 wood swingset beam, single span, center load max lbs?

I'm building a swing set with a 10 ft 4x6 pine beam. I would like to determine how much active load the beam can support at the center point, or at least minimally how much static load. I've ...
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2answers
40 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
68 views

Are these walls load bearing?

Looking purchase this house, however, want to remove the bar and closets in "red", could that whole area be removed, or are those load-bearing/structural walls? The original structure for this house ...
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1answer
46 views

Structural integrity of new fence on concrete slab

I recently bought a condo with a 11'x13' patio with a wooden privacy fence. The fence is in pretty bad shape so I want redo it with new wood in a more modern design by doing horizontal planks. I ...
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17 views

How to construct posts on 15' tall dock

I am working on designing a 2 story dock that will house my boat and have a deck on top. I was planning on constructing the dock using concrete pillars and 6x6's. My original plan was 12" wide ...
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0answers
24 views

Can I use scaffold boards butted side by side instead of rafters for a flat roof?

The thickness of a scaffold board is 35mm and so laying the boards side by side (just like you would see on scaffolding) instead of using 4 by 2's will create an extra 60mm of much needed headroom ...
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2answers
25 views

How do I deal with 3" subfloor overhang and extreme joist notch

I have two distinct problems I found after removing a replacement piece of subfloor that a previous owner had cut and put in to place. First is there is a very large notch (12") created in a joist so ...
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Support beam and posts for a new construction deck

I am in the planning phase for a new deck I am building for my house. I have built a few other decks before but they were rectangular in shape and pretty straight forward. The deck I want to build ...
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0answers
55 views

What are some alternatives to making birdsmouth cuts in a rafter?

I'd like to avoid making a birdsmouth cut in my rafters since they are extending beyond the top plate in a cantilever, and I don't want to reduce the strength too much. I've seen that there is VPA (...
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0answers
25 views

12 x 16 two story Cottage lifting

How do I lift this with three beams? I would like to put in 8 inch round pilings at the end of the beams and lift it on top of those. What can I use as beams? What size? Steel or wood? What about ...
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2answers
25 views

When using a VPA (Variable-Pitch Connector) to connect roof rafters to a top plate, how and where do you install hurricane ties?

When a VPA to attach rafters to a top plate, it seems there isn't room left for your normal hurricane tie to be put in place: The part of the VPA that nails on to the top plate obstructs the ability ...
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0answers
33 views

Can a header be continuous across the whole wall if it is above the top plate?

I have seen that continuous headers can be problematic due to lateral forces. However, in my situation the "header" is actually a 4x6 purlin which is above the top plate. The original purpose of the ...
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0answers
19 views

Does the 2/3rds rule for cantilevers still apply if the cantilever is at an angle?

There is a rule that a cantilever should be 1/3 the span of the supported beam. My assumption is that this rule is intended for rafters close to horizontal. Theoretically, the steeper the angle, the ...
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2answers
36 views

What are some strategies for achieving a 2' eave overhang?

I am planning a shed-roof (not gable) workshop and would like to have a 2' rake overhang. I know the standard way to frame this would be do to 16" or 1' and support it with blocking, the rafter tail/...
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1answer
33 views

Load bearing walls in 1860s house

We own a third floor condo in a house from the 1860s. I am trying to identify the load bearing walls in our apartment. Wall A is load bearing because it supports the roof joists. But what about wall ...
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2answers
64 views

Relocate central air conditioners to roof

We recently moved into a house, and we've noticed that the central air conditioners take up valuable space, not only with their footprint, but also they will likely blow hot air during use, making ...
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1answer
53 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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2answers
767 views

What's the mechanism to maintain this shelf stable

I want to know what's the mechanism to maintain this shelf stable even when they tilt the wall-bed: I would like to build something similar myself (not for a bed though). I researched about gimbal + ...
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2answers
91 views

Alternative designs for a load bearing wall

Please bear with me - I am not very skilled in the area of house renovations and building structures. We had a business come in and draw up plans for a new kitchen. It involved knocking out the '...
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1answer
63 views

Add storage to hidden attic space above garage?

I recently discovered that I have an unfinished attic in a guest bedroom on the second floor of my house, above the garage. The overall area is behind the closet in the bedroom and is approximately ...
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2answers
76 views

Need help reinforcing a pergola

We built a pergola last fall and are noticing some wiggle in the structure. The columns are bolted into deepened edges of a concrete slab, But we did not want traditional brackets at the column to ...
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2answers
228 views

Advice on hanging gymnastic rings in garage rafters?

I have ordered this metal bracket for hanging gymnastic rings in my garage to add to my home gym ( https://www.roguefitness.com/rogue-ring-hanger ). My garage does not have a second story above it, ...
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0answers
15 views

Which is more preferred, PU SIP core panels or EPS SIP core panels?

I am looking at something that can last a long time, has good structural component and provide good insulation. Which would be the preferred option in this case? I am from the Caribbean. Thanks!
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1answer
29 views

Are Steel SIPs Structural?

I am from the Caribbean and we have a lot of termites so OSB SIPs are not an option, my question is this, are steel SIPs Structural like OSB SIPs? SIP = Structural Insulated panels. EPS = Expanded ...
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6answers
2k views

Can I use blocking between floor joists to support off-center jack studs in a load-bearing wall?

I have a load-bearing wall running down the center of my house, perpendicular to the floor joists. As this house is from the 1920's, there is no subfloor - the bottom plates of the walls sit directly ...
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3answers
182 views

Can I partially suspend an angled climbing wall from my garage trusses?

I'm planning on building a home climbing wall in my garage. I'm wondering about the structural integrity of attaching it to the trusses. They are 2x4s, 24" apart, and span about 30 feet. This image ...
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2answers
57 views

One wall parallel with joists

My house is Colonial rectangle. I have opened up one load-bearing wall that runs about 2/5 of the length between the den and the living room. With help and excellent advise, I put in a 90" header for ...
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3answers
84 views

Mounting a ceiling fan with 28” joist spacing and no attic access

Is there a decent way to mount a ceiling fan between joists that are 28” apart without tearing apart the ceiling? I don’t have access from above. I looked into the expanding bar hangers that I can ...
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1answer
61 views

making converted attic into full height (roof tear off)

Bought a house 5 years ago. Brick construction, single story with full basement (concrete walls). The attic was converted to living space (with permit) before I bought it, but it has 43-inch knee ...
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2answers
138 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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10answers
14k views

Are gaps above and below framing members a concern?

I recently hired a framing crew to frame a new house. After it was done, I commissioned an independent review. The reviewer described some of the work as "shoddy," and pointed out a lot of gaps, ...
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2answers
43 views

10d nail gun or # 8 screws

I have to do a one side 8ftx6” slab repair on 6 lower chords on my trusses. I can use 10dx3 nails or #8x3 screws. Do you think it would be better to use nail gun or screws?. I understand nails have ...
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2answers
142 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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2answers
53 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
121 views

Strengthening existing 2x4 joists to create a mini attic

Between the first and second floor of a friend's house he has about 4' of dead space that he wants me to help convert into storage (this is in San Francisco, so every square foot counts!). He got the ...
2
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3answers
306 views

How far out of square is too far?

What is a good margin of error on the diagonals for a 5x10 foot, square wood foundation? I have about 1/2" discrepancy on the diagonals. (for a shed).
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1answer
59 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
91 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 ...
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1answer
122 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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4answers
220 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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1answer
64 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 ...
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2answers
83 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
178 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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1answer
99 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
76 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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1answer
45 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 ...
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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 ...
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1answer
70 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
179 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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