the hole remains from a house demolition. the basement of the house should have been about 44 cu yd, guesstamate.
it is actually not that regular of a hole, so i think we have the limits. that will do for now. just need to know how many truckloads of compost i will need to make a garden out of a hole.

The base would be below the frost-line and the temperature easier to regulate. A short wall around the perimeter.

Hmmm, where's my shovel?

please no. my brain is exploding with plans for this space.

http://www.democraticunderground.com/118252

Still, clean dirt fill is expensive in the city and it might even double as a weather refuge for some chickens.
Late tomatoes and early lettuce?

Good luck with your project and keep us updated. It looks exciting with potential for all sorts of creative ideas.

and doing everything else i can on the cheap. looking forward to chickens turning our trash into eggs and egg money.

A cave with a little fountain.

sorry.
it will be a hugelkulture bed, tho, which will be cool.

my daughter is some sort of wolf, also. i know how it is.

namely that it slopes up on all sides from the centre. Given it was originally a basement, the bottom is more likely to be flat. An ellipsoid may give an underestimate of the material required.

but between the calculation of the ellipsoid and the guesstamate of the basement volume, i am close enough to what i need to know.

thanks to all.

to get the joke sometimes. thanks.