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Does anyone know about step down footers? When I dig the step down footers what is the exact depth I would step down 8 inches or 8 1/2 or what? Im building a stem wall footer that is 48 feet long and my slope drops 9 inches every 12 feet. It's a continuous footer for a 24x48 home. Does each step down footer overlap a certain amount? Thanks
 

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You can step down whatever the height of your block is. Each step should overlap at least the depth of your footing with some continuous bent rebar.
 
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