Carl_NH
Elite Member
- Joined
- Apr 5, 2002
- Messages
- 3,264
- Location
- Coastal NH
- Tractor
- 01 Kubota B21TLB, 2010 Ferris 52" ZTR, Cub Cadet 1811, Gravely Super8
Rerod - the footer design you showed we call here in the NE a "floating slab" and I have done two of these on a barn and garage. The footer is 24" deep x 18" wide with rebar in the whole floor and in the trench tied together. It was all poured as one slab.
We chose these due to ledge - and they have worked out fine - just make sure you have a good level pad, compacted stone, and rebar all tied in.
Bottom line- it takes more concrete but less forming time. If you don't have any subsurface issues and easy digging - dig a trench down 4', pour a footer then a wall either block or concrete.
On your choice of machines, I'd vote TLB also, but we all have biases based on our equipment and experience.
We chose these due to ledge - and they have worked out fine - just make sure you have a good level pad, compacted stone, and rebar all tied in.
Bottom line- it takes more concrete but less forming time. If you don't have any subsurface issues and easy digging - dig a trench down 4', pour a footer then a wall either block or concrete.
On your choice of machines, I'd vote TLB also, but we all have biases based on our equipment and experience.