Too weak stud?

[rockin_john]

Hello all knowledgeable folks!

I rebuilt my entrance stairs last summer, intending to keep the roof from the old one. But now I've decided that I want to extend the roof to the red marking on the picture.

I know that the beams can handle it.
But I would also like to hang up a sofa (see picture).

It should hang at the pink marking, i.e., near the beam and where the roof is attached to the house.

The beams are 70x70mm and attached to the ground with post shoes.

Will my 70 beam handle the weight of the swing and the roof? (swing + person approx. 130kg).

Note: It is not the cat in the picture who wrote the letter.

 

[vectrex]

I would be significantly more concerned about wind effects and twisting forces there than a small swing.

If the roof is correctly designed, the design snow load is guaranteed to be significantly heavier than the weight of a swing with a person in it.

 

[rockin_john]

I would be much more worried about wind impact and twisting forces there than a small swing.

If the roof is correctly designed, the snow load it is built to handle is certainly much heavier than the weight of a swing with a person on it.

Good answer. The roof stood on similar beams before - which were completely rotten and still withstood strong windstorms and loads of snow.

Is it a sign that I can be "safe" with my new 70 beams?

 

[Magnus E K]

Maybe difficult to judge from the picture, but purely visually I think it looks a bit flimsy. Even if it probably holds without problems, it can make you feel less "comfortable" with the construction than if it were a bit sturdier (like 3-4 90x90-posts).

 

[rockin_john]

Perhaps difficult to judge from the picture, but visually I think it looks a bit weak. Even if it probably holds up without a problem, it might make one feel less "comfortable" with the construction as if it were a bit sturdier (like 3-4 90x90 posts).

Would you have replaced the joists?

 

[Magnus E K]

Probably, if it looks the same in reality as in the picture. When it comes to visible load-bearing parts, I prefer the look when it's a bit oversized (and maybe it's too weak in your case; someone who knows should calculate it).

 

[rockin_john]

Probably, if it looks the same in reality as in the picture. When it comes to visible structural parts, I prefer the appearance when it's a bit over-dimensioned (and maybe is it too weak in your case; someone who knows should calculate it).

You're right. I'll just have to bite the bullet and replace it. Do it over - do it right.

 

[rockin_john]

Here's how it turned out. Damn much better looking. And stable as heck. It will probably still stand when the house has rotted away =)