I've had #6 rebar specified at 18" in length in both directions so they would fit into a 24" round hold through a 6x6. This is what the engineers wantedHow critical is the length of the bolt that sticks out of the post? The reason for the bolt is to lock the post to the concrete block. Is there a need for two bolts?
Placing rebar in both directions in a concrete-set wood post helps it handle loads coming from any angle, not just straight up and down. It's like creating a strong mesh inside the concrete that grips the post better, making it tougher against wind or earthquakes. It's all about spreading out the stress so no single part gets overwhelmed, kind of like a team effort in holding the fort.Is there a need for two bolts?
Ya I don't think so. It's a 24" cube of concrete for a residential deck. Next I'll be hearing about Earth's rotation acting on a soon to be rotted post.Placing rebar in both directions in a concrete-set wood post helps it handle loads coming from any angle, not just straight up and down. It's like creating a strong mesh inside the concrete that grips the post better, making it tougher against wind or earthquakes. It's all about spreading out the stress so no single part gets overwhelmed, kind of like a team effort in holding the fort.
Dude, I looked at a pole barn that was not built right and whenever we had sustained winds over 10mph the doors would not open. It was lifting the building slightly on the upwind side and cracking the pavement along side the building.Ya I don't think so. It's a 24" cube of concrete for a residential deck. Next I'll be hearing about Earth's rotation acting on a soon to be rotted post.
And you think that the thru-bolts on the bottom of the posts made a difference? I spent a year or so working for Morton Buildings. We had posts with a rebar stuck through it. We emptied a few bags of dry Sakrete and back-filled. Pulling against dirt is not the same as pulling against a block of concrete.Dude, I looked at a pole barn that was not built right and whenever we had sustained winds over 10mph the doors would not open. It was lifting the building slightly on the upwind side and cracking the pavement along side the building.