Obviously, I understand that this varies tremendously based on innumerable factors (location, time of year, house size/type, soil type, local demand, etc. etc.). But here are some parameters for my sitch:
~1,000 SF footprint
simple rectangle (24’ x 40’), no jogs
full basement, possibly with slightly higher ceilings
ICFs
sloping site; full walkout in back
light clay and crumbly shale (i.e. I could easily break up and dig out the shale with a shovel if I really didn’t want to bring in excavation equipment)
NY State’s Hudson Valley
work done this spring (I hope)
Are we talking $20,000? $5,000? $50,000? I’m just looking for a rough guess to the nearest, say, $5,000. Thanks for your tolerance.
I used the Arxx blocks on my house. IIRC a standard block used .11 CuYds of concrete. I might not be remembering correctly though. I suspect that the correctly filled out worksheet would give you the amount of concrete required.
I have no idea how this translates to you, but here goes:
Los Angeles
Approx. July of ‘05
Crawlspace foundation
Formed and poured
Footprint 1450 sf
Footings 6’ deep below grade
Foundation 2’ high above grade (flood zone)
Various interior supporting stem walls
61 yards concrete total
Excavation was cheap since I have a friend with a backhoe: $900
Forms, place concrete, finish, etc.: $16,500
Footings 6 feet below grade? :eek: Damn that is one hell of a footing. I dug apartment and condo footings (2 and 3 story buildings) that only had footings 3’ deep.
The soil in your area must be really loose.
Given the hypothetical worst-case scenario flood, the hydrology study determined the potential to “scour” out several feet of grade. So, 6 feet deep for a little 1-story house.
