Lean to metal building question w/ finished inside pics

[BB16]

Hey all,

So, I have a metal framed building that I built in 2019. So far it’s been good, but if I had to do it again, I’d have done a traditional pole building. With that being said, here’s a before and after pic of the inside...

I’m kicking around the idea of doing a gabel end lean-to. We ran the barn siding so that the corrigation runs horizontally instead of vertically, so I can attach a header to the wall and have it sit flush. My question is, is lagging a 2x10 or 2x12 header to the metal framing on the outside of the barn smart? The lean to ideally would be 30’ long and 12-15’ deep. Are those side walls meant to bare any weight, or am I tempting fate and pushing limits? Thank you.

 

[BB16]

And here’s the side where I would attach the lean to. Crappy pic, but the best I have at the moment

 

[readhead]

The building was designed to hold itself up only. Adding additional load to the wall may not be a good idea. When I add lean to structures I support the new building completely on it’s own and depending on the situation may or may not attach it to the existing building.
That being said the gable wall has very little load on it and would probably be okay to attach to if there is little snow or wind load. Those tall vertical tubes may be subject to deflection with excessive loads. Now that I read what I just wrote I think I would stay with independent support for the leanto and flash it to the existing building.

 

[BB16]

Readhead - after I posted that, that’s exactly what I started thinking about. Just making it free standing and flashing it. Why push the envelope when 4 more posts will completely do away with any issues. I appreciate the feedback. I know I already added some weight to it with the spray foam, but I do think it made the building a lot more noticeably rigid.

 

[jack stand]

4 post's? This will probably be more like 8 depending on your 30' beam(s) construction.

 

[BB16]

4 post's? This will probably be more like 8 depending on your 30' beam(s) construction.

That would be a post every 3.75’ if you put 8 posts along a 30’ run...seems a little excessive, and tight - but I’m no expert. I was going to talk to a buddy today about it but I figured 4, maybe 5 posts over the course of the 30’.

 

[jack stand]

You'll need posts against the building if you're going to make it free standing.

 

[BB16]

Yes sir, I think you read my initial post wrong and that was the confusion. I said I’ll need 4 more posts, meaning run 4 additional posts up against the barn wall so that it’ll be free standing. 8-10 posts total.