So I am looking at building a new 60ft x 120ft shop building on some property that I have owned for a while. I got a quote on a kit from one of the largest metal suppliers in the US. The kit comes with everything needed for the metal framing, the metal for the walls, the metal for the roof including all necessary roof accessories such as closures and such as well as the entry door and garage door. All of the metal is pre cut and has the mounting holes already drilled. All that I have to do is supply the pad with the anchor bolts and do the assembly. The quote they gave me for the building with everything needed for a turn key job including rolls of insulation for the walls and ceiling for a 60ft x 120ft kit was a little over $46,000. I just supply the pad and do the assembly myself.
My question for you guys is how to calculate the concrete yardage for a slab of this size? I live in Arkansas and we rarely get snow although I would like to possibly insulate the slab. Of course I would hire a concrete company to handle all of the slab work. I am just trying to come up with a quick and dirty approx calculation for the concrete. Would I be good with a slab thickness of approx 4” to 6” not including the footer? Not really sure on the PSI either but I will let the concrete guy figure that stuff when I decide to start. For now I am just trying to come up with a rough guesstimate for rough budgeting purposes.
Can anyone give me an idea of how to calculate rough yardage?