I'm planning on building a garage this Spring and need to figure out what I want as far as size goes. I'll be building it myself and will likely go with a poll barn style only I prefer pouring the footers leaving blocks above ground with anchors instead of burrying the lumber. I came across some nice trusses years ago (still indoors) and snagged them up so if I use them I'm looking at a 24'X40 maybe 60. I'm just curious if 24 is deep enough? Since I work at a sawmill the only real cost will be the floor, garage doors and the tin if I use the trusses.