there are three different way for garage foundation# v) j* H6 j3 L. m
2FT grade beam + piles1 S' K& ^2 c* r! u5 ^
5FT foundation wall 7 e! s9 R* { T: X$ X8FT foundation (similar to house foundation).5 `: X. W1 I- ], T
& I0 [3 T7 G% A2 l7 }
all three works. and they all have pros and cons for each though