The 3 things I learned when I had my foundation repaired that shocked me included: pier spacing is engineering
https://telegra.ph/5-Warning-When-to-Call-a-Foundation-Fixing-Specialist-Near-Me-09-02
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.