I have a 20'X 40'garage that had the front half built on a pile of rocks and dirt, the back half was built on concrete block. The front part of the building has sunk into the dirt and rocks about 8 inches and is not level. I've supported the building and built a concrete block foundation for the front. Now I want to jack the building into level and actually lift the whole structure 2 courses of block to get it away from the dirt and occasional flooding we get.
My plan is to get 4 - 22' wide steel beams and use screw jacks (3 per beam) and to connect the beams at the walls by 2" X 10's lagged into the sidewalls and lift from underneath them and I would also support the center beam of the garage from the steel. How do I figure out what size beam to use and does this sound like a good way to do this? Thanks
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