What is the best type of fill to use under a garage slab? I need to fill an existing basement by 4 feet deep and want to minimize the chance that the footings will freeze and at the same time I want a stable base for the slab which will not settle over time (since I will have some wood framing...
I have a 10" wide block wall that extends above ground by about 3 feet. On top of that wall sits my house (wood frame). I have built a garage underneath the house and I have made an opening in the block wall for the garage door. Above the opening is a header with 3 2x6 posts on each end. The...
