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

https://beckettbpjk014.tearosediner.net/3-must-know-points-before-you-call-a-company-for-basement-waterproofing-and-foundation-repair

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.