03-01-2014, 03:15 AM
If you were making a rebar ladder on a cliff, 6" would be deep enough.
6"-8" is a common depth for rebar into concrete, not lava.
Lava is prone to easy fracture when under heavy stress.
6"-8" is a common depth for rebar into concrete, not lava.
Lava is prone to easy fracture when under heavy stress.