there are three different way for garage foundation+ f! U! f2 D( d; g! V6 L% q
2FT grade beam + piles ' S0 k% h" h+ P5 f/ }0 Z5FT foundation wall; d p7 s) }5 k+ [
8FT foundation (similar to house foundation).: q% Z" R( v4 Q. j
$ c# P7 J; ?( W/ ball three works. and they all have pros and cons for each though