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rspann wrote:You could also cut away squares where you want the columns, dig out the concrete and dirt, make some footings ,insert the steel and recast.
rspann wrote:Don't forget to make provision for attaching the roof when you reach the ring beam.
Gladiator wrote:You should do a trench, tie the steel through the corner posts and to the roof. Build it good and strong... remember we had big earthquake and bret pass through a couple years ago.
car wrote:When u say extension, do you mean walls and roof or just a concrete floor?