stem-wall foundation

[boots89]

Hello,

I'm hoping to get started on a new shop at the house. Plans right now are 50x100x18 pole building built on a footer/concrete stem-wall that's 1' foot above finished floor level.
I got an estimate for around $25000 (16" w x 8"thick footer) 4ft tall 8" wide wall with rebar. 116 tons of limestone spread for the pad. Does that seem high?

 

[vekster]

I just paid $14,000 for a 36'x48' with a 52" stem wall and 16"x8" footer.
so your price does not seem that bad.
and that was with me doing the excavation myself and backfill and gravel
my location is in Canada

 

[boots89]

Just want to be clear, did that $14000 include the floor? They want another $32000 for the floor 6” thick.

 

[matt_i]

Confused slightly about the 4ft stem wall and post-frame construction? Is the wall a retaining wall so it can be built on a slope?

 

[vekster]

Just want to be clear, did that $14000 include the floor? They want another $32000 for the floor 6” thick.

no floor.
that was just forming and pouring footers and frost/stem walls

 

[boots89]

no floor.
that was just forming and pouring footers and frost/stem walls

That's what I assumed, but when you put the dimension up I wanted to make sure.

 

[boots89]

Confused slightly about the 4ft stem wall and post-frame construction? Is the wall a retaining wall so it can be built on a slope?

No, I'm doing the wet-set sturdi wall brackets and bolts the pole to the stem-wall. Which will be one foot above the finished floor.

 

[PWC Repair]

I thought as a rule of thumb that a wall 4ft tall required a 24"x12" footer?? That's how we did mine.

 

[boots89]

I thought as a rule of thumb that a wall 4ft tall required a 24"x12" footer?? That's how we did mine.

That's what they spec to me, I didn't have any input on the qoute. I'm using 3-ply 2x8 laminated columns, I want a 10" wide wall over the 8" they quoted, I can't imagine going to 24" wide footers would add that much cost. The wall will mostly be under ground.

 

[matt_i]

No, I'm doing the wet-set sturdi wall brackets and bolts the pole to the stem-wall. Which will be one foot above the finished floor.

Personally I would stick-frame after going thru all of the concrete work that you're undertaking. Will be a stronger longer lasting building due to the sheathing. You are asking those wet-set anchors to do a lot of moment-resistance on an 18 foot wall. Will be easier to insulate imo with the stud cavities also.

 

[boots89]

I looked into stick built, just seems like a lot of added cost to go that route for the height I want. Also I would need a taller foundation wall. 32" of the wall is going to be in the ground for frost depth. I know I've seen it debated forever, but with post-frame isn't it easy to insulate? You have a 8ft cavity without any breaks.

 

[WNYflyer]

Another one slightly confused. In many ways the type of design of the building superstructure should be driving the design of the foundation. Since you want to mount the building columns/poles up on concrete wall/piers do you have a preliminary design from a pole building manufacturer indicating the forces at the base of the column/pole such that you have confidence one of the available sturdi-wall products will work? Who came up with the design for the foundation system quoted and coordinated that with the type of building design you envision?

 

[PWC Repair]

I looked into stick built, just seems like a lot of added cost to go that route for the height I want. Also I would need a taller foundation wall. 32" of the wall is going to be in the ground for frost depth. I know I've seen it debated forever, but with post-frame isn't it easy to insulate? You have a 8ft cavity without any breaks.

Nix my comment. If that much of the wall is underground I'm sure that rule of thumb won't apply.

 

[boots89]

Another one slightly confused. In many ways the type of design of the building superstructure should be driving the design of the foundation. Since you want to mount the building columns/poles up on concrete wall/piers do you have a preliminary design from a pole building manufacturer indicating the forces at the base of the column/pole such that you have confidence one of the available sturdi-wall products will work? Who came up with the design for the foundation system quoted and coordinated that with the type of building design you envision?

I went to a semi-local company that specializes in nothing but poured concrete foundations. I told them what size I wanted and plans with the building. It's non commercial, I don't have to build to any codes where I'm at at. The building manufacturer of the kit is supplying the brackets, so I hope they wouldn't send something that won't work. I told them what I planned on doing and they agreed with proposed plan.

 

[Leaflessshadetree]

I looked into stick built, just seems like a lot of added cost to go that route for the height I want. Also I would need a taller foundation wall. 32" of the wall is going to be in the ground for frost depth. I know I've seen it debated forever, but with post-frame isn't it easy to insulate? You have a 8ft cavity without any breaks.

Strange.
Seems like most of my extra cost for framed was the cost of the foundation and footings. Most framing material and labor saved by pole construction was going to be needed to finish the interior. There wasn't much difference for insulation or wiring.

 

[Kevin54]

Have you looked into having block laid?

 

[boots89]

Strange.
Seems like most of my extra cost for framed was the cost of the foundation and footings. Most framing material and labor saved by pole construction was going to be needed to finish the interior. There wasn't much difference for insulation or wiring.

I was quoted $80000 for a stick built 50x100x18 and that was just for bare bones shell built on my supplied foundation. No interior insulation or finishes.

I was quoted $13000 for footers and 5 rows of block, I think concrete would be better route with the brackets and columns.

 

[Jtrudel90]

I just paid $14,000 for a 36'x48' with a 52" stem wall and 16"x8" footer.
so your price does not seem that bad.
and that was with me doing the excavation myself and backfill and gravel
my location is in Canada

Mind me asking what city your in ..?

 

[boots89]

Located Zanesville, OH 43701