there are three different way for garage foundation 1 l' T- a* n0 g9 L) g+ w# l7 ^2FT grade beam + piles+ ?9 z9 l/ Q1 v4 a) z
5FT foundation wall; k6 z$ e G0 r' @2 |8 Y
8FT foundation (similar to house foundation).) t4 B% ]: z3 @- i* Y+ l4 H: F
. z- C- A5 s8 J# W: r, \all three works. and they all have pros and cons for each though