Cement quote is in....

[River19]

For our 28x32' build.......

Option 1
6" slab
Excavation for slab $2500
Slab itself $5500

$8000 total

Option 2
4' Frost walls
Excavation $4,000
Cement work $8,950
Call it $13,000 total

Leaning towards the Option 1 slab, have a little more steel installed and see if they can excavate and install a 1000-1250 gallon tight tank for me. Thinking that would work its way up to $10,000.

Overall, I'm not too disappointed in those figures.

 

[srmofo]

Better put some aggregate in that cement or you are going to have serious problems

I paid $10k for for footings, 4'block wall, and slab on a 24x36 so I think your quotes are about right on.

Then again location makes a huge difference and I have no idea what concrete is per yard these days versus a few years ago when I did mine. Your quote could be really good if concrete has increased or you could be getting hosed if its dropped.

 

[woodzy]

Well, not sure where you are located but I would think you would want 4' walls if you are in a frost zone and at least 18" if not to keep critters from taking up house under your slab. I assume you only want to do this one.

I just had a bunch of concrete work in the Toledo, Ohio area and it was $3.25 sq ft which included any prep and seal. This was 4" thick. I had over 60 yards of concrete poured an it was done from start to finish in less than 2 eight hour shifts. Crew of 8-10 men on the site working like a well oiled machine.

 

[River19]

We're in northern VT, so plenty of frost, but a high % of the garages and barns are on slab around here.

I like the idea of cement block up 18" or so around the sides however. Am I crazy in thinking that would be a good idea?

 

[Falcon67]

$9 sq/ft ain't a bad thing IMHO. I've seen 4" driveways using wire mesh here in no-frost land run $6 up.

 

[Jlbc212]

All the slabs I've seen in northern New England have been poured over a compacted base of 3/4" broken granite stone with water drainage away from the stone. This allows water to drain from under the slab and will prevent frost from heaving the slab. Make sure to add in the cost of the stone, drainage and proper preparation. In addition, IMO all wood framing members should be raised at a minimum of 8" above the surrounding grade. Higher is better. Look around Vermont and see which old barns have survived the ravages of weather and time. These old barns were built on granite stone foundations with the top of the foundation well above the surrounding grade and had well-maintained roof coverings, often metal. The barns that have caved in on were built on wooden posts in direct ground contact.

 

[River19]

All the slabs I've seen in northern New England have been poured over a compacted base of 3/4" broken granite stone with water drainage away from the stone. This allows water to drain from under the slab and will prevent frost from heaving the slab. Make sure to add in the cost of the stone, drainage and proper preparation. In addition, IMO all wood framing members should be raised at a minimum of 8" above the surrounding grade. Higher is better. Look around Vermont and see which old barns have survived the ravages of weather and time. These old barns were built on granite stone foundations with the top of the foundation well above the surrounding grade and had well-maintained roof coverings, often metal. The barns that have caved in on were built on wooden posts in direct ground contact.

Agree 100%.

I will confirm on the crushed stone/proper drainage etc.