Pouring a 30"×40" concrete pad on top of concrete floor?
- By ClangClang
- The Bear Pit
- 69 Replies
Here's an approx 30" square pad pad poured for a steel column to support triple LVL's for a second floor.
I had to cut through the basement slab to excavate it. It's 16" deep, so about 22 -24 60# bags.
It's very similar to what you're doing.
Here's a front porch supported by a footer and poured walls and deck, sitting next to brick veneered poured walkway.
Probably another 900-1000 bags.
This guy concretes. You probably have a bunch of bow kills too.