Dimensioning studs in an exterior wall with a gable roof

[Moa H]

Hi! First post here and very grateful for advice.

I'm building a small house of 30 sqm, intended to function as an "attefallshus" and also be transportable by road. The exterior dimensions are 10x3 m and 4 m high. Since I'm building small, every centimeter inside matters both in width and height. I want to keep the thickness of walls, floors, and ceilings down while ensuring the house is also functional.

The house has a gable roof, and a glulam beam holds it up, according to the calculation below. Now to my question, will the exterior walls also be load-bearing with this construction? What dimension of studs in the exterior walls is needed? Is 95x45 sufficient?

 

[anaitis]

Works well with studs 45x95

 

[Moa H]

That sounds excellent! Is it because the span of the roof is so small that larger beams aren't needed?

 

[Bart]

No, the span does not affect very much.
As long as a stud is prevented from bending, it can handle a very large load.
Therefore, frameworks should be clad with panels or have diagonal braces to prevent the studs from buckling or simply lying down. What you should avoid is simply that the studs bend like a bow.

There is a lot of interesting information here. You can skip the math but read the text and recommendations https://www.traguiden.se/konstrukti...ing/stomme/vaggar/barande-vaggar---generellt/

 

[Moa H]

No, the span doesn't affect much.
As long as a stud is prevented from bending, it can handle a very large load.
Therefore, frameworks should be covered with panels or have braces to prevent the studs from buckling or simply laying down. What you should avoid is simply the studs bending like a bow.

There is a lot of interesting information here. You can skip the math but read the text and recommendations [link][/QUO

There you go, 45x95 is strong enough, as long as it doesn't bend, which you avoid with braces or panels on one or both sides of the stud.

If I use a panel on one side of the wall, what is the minimum recommended thickness for this purpose? Can 10mm plywood stabilize the construction sufficiently?

 

[Bart]

Absolutely. 12 mm may be more common, but 10 mm is sufficient.

 

[Bart]

Also, make sure each truss is positioned so that a beam directly supports the force underneath. Or you can use a recessed load-bearing beam, allowing the trusses to be placed almost anywhere.