My new building

[Duffster]

If you are thinking of building the barn off of the concrete like you would a house on a slab it is a completely different process. That would be what is often called stick framing where you build walls attached to the footings for the trusses to set on.

We build traditional post frame buildings on slabs. It is actually cheaper than post in ground buildings.

 

[MarkV]

If you are thinking of building the barn off of the concrete like you would a house on a slab it is a completely different process. That would be what is often called stick framing where you build walls attached to the footings for the trusses to set on.

[/QUOTE]We build traditional post frame buildings on slabs. It is actually cheaper than post in ground buildings.[/QUOTE]

OK, so how are you dealing with the attachment of the post to the footing. Around here, for a tin barn that isn't using sheathing on the frame, the inspectors do not like the "hinge" affect of mounting post in brackets. Wind loads being the issue they have.

MarkV

 

[Duffster]

OK, so how are you dealing with the attachment of the post to the footing. Around here, for a tin barn that isn't using sheathing on the frame, the inspectors do not like the "hinge" affect of mounting post in brackets. Wind loads being the issue they have.

MarkV

We use 2 metal "L" backets, one on each side of the post, with 2 bolts throught the post and 2 anchors into the concrete.

The steel siding is the sheathing.

 

[MarkV]

I don't question that works for you. I would just think that in Wisconsin you would have to sink a footing down 40 plus inches to get below the frost line and the concrete would not be that much cheaper than setting poles deep to get the lateral strength. I also don't see anyway the barn tin would have the shear strength to meet lateral loads without a good deal of diagonal bracing in a building. It is always interesting to see how things differ by region.

MarkV

 

[Duffster]

I don't question that works for you. I would just think that in Wisconsin you would have to sink a footing down 40 plus inches to get below the frost line and the concrete would not be that much cheaper than setting poles deep to get the lateral strength. I also don't see anyway the barn tin would have the shear strength to meet lateral loads without a good deal of diagonal bracing in a building. It is always interesting to see how things differ by region.

MarkV

You are right about the frostline but to talk about a traditional post(in ground) frame building being below the frost line is kind of an oxymoron. The post can be set below frost but the skirt/grade board is setting on/in the ground so frost is still heaving the building. 4' deep frost walls are ideal but slab on grade is a good economical alternative. This is a very common practice for commercial/industrial buildings built in wet areas or built on large amounts of fill.

"Barn tin" is similar to OSB for cross bracing. No wood bracing is required. When erecting building you can put all the wood bracing in you want and won't get the building stiff until you put the steel on. We simply pull the building into square with comealongs and install the steel. In some applications we double screw the steel on the endwalls to add to the rigidity of the steel but this is not common.

 

[MarkV]

So I think I am getting it. As you said you are building a Post Frame building rather than a Pole Barn. Can I assume that you are putting concrete piers for each post to set on? Are those set below your frost line and what size pier do you pour?

MarkV

 

[Duffster]

So I think I am getting it. As you said you are building a Post Frame building rather than a Pole Barn. Can I assume that you are putting concrete piers for each post to set on? Are those set below your frost line and what size pier do you pour?

MarkV

Ummm...Most use pole barn and post frame as one on the same but post frame is the correct term, at least in the industry. When I build slab on grade there is nothing below frostline. Typically a 6" floor with a ~16" x 16" thickened edge with the posts setting on top of a sill board which is setting on the slab or curb.

 

[MarkV]

Sorry, I did a little Google search and found Pole building and Post Frame building to be an interchangeable term. It just isn't a term commonly used here. Being in the south frost heave has never been an issue. I just alway thought all the building up your way had to get a foundation below the frost line to avoid movement. So I take it what you are doing, for this type of building, is building one that is designed to move as a unit with ground movement due to freezing. Am I getting closer?

MarkV

 

[Duffster]

So I take it what you are doing, for this type of building, is building one that is designed to move as a unit with ground movement due to freezing. Am I getting closer?

MarkV

Bingo!

 

[MarkV]

Bingo!

Thanks, I enjoyed the conversation. :thumbsup:

Bugboy I apologize if I hijacked your thread. We often talk about how barns are built on the forum. It is alway interesting to see how it is done in different regions.

MarkV