[calgaryrocks]

Originally Posted by Shin Pad

So does the garage have a slab on grade with thickened edges? Or does it have foundation walls? Anyway, if it is a slab on grade, it's fairly easy to add onto. If you have foundation walls, which extend up above the slab level, then it's a lot of work to cut the foundation wall so it will be below the slab level of the new extension.


Also, what is the condition of the existing slab/foundation? If you have to replace it, it will be costly - removing the existing, preparing the subgrade and new slab. My slab was easily the most expensive part of the garage and that was a new slab where I didn't have to remove or modify anything.

It's on just a slab on grade -no foundation walls. so that is a plus. it is in decent condition, one crack in it, probably not worth removing the slab and pouring new one, just pour a new one beside it.