The 3 things I learned when I had my foundation repaired that shocked me included: pier spacing is engineering

https://caidenncpp618.opalvector.com/posts/residential-foundation-repair-explained-3-steps-to-take-before-calling-a-company

The 3 things I learned when I had my foundation repaired that shocked me included: pier spacing is engineering, not guesswork, and fewer deep piers can beat many shallow ones.