Do you need rebar in Sonotubes?
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Similarly one may ask, is rebar required in piers?
Most deck builders don't place steel reinforcing rebar in footings, but in areas with expansive or other unstable soils rebar is usually required.
Furthermore, why do you need rebar in concrete? Rebar is easy to set into place before pouring the concrete. It helps to reduce the cracking and breaking that is common in concrete because of its brittle properties. Rebar provides strength to concrete and saves money for the purchaser since the concrete slab, blocks or building will last longer.
Furthermore, do you need rebar in foundations?
Your foundation walls will require that every four feet be filled with concrete and rebar. If you have 140 feet of wall, just divide 140 feet by 4 and you get 35. If your foundation is 32 inches, then multiply 32 inches times 35 slots and you get the total number of inches of rebar you need, which is 1,120 inches.
How deep should piers be?
The minimum thickness for a pier is 8 inches. The minimum thickness for pier footings is 8 inches or 1-1/2 times the length of the footing projection from the pier, whichever is greater.