Types Of Foundations For Houses
In the Bay Area, common house foundations include slab-on-grade (a flat concrete pad for stable, dry soil), crawl space (raised on short piers for ventilation and utility access), and basement foundations (less common due to seismic risks and soil conditions). For earthquake resilience, pier-and-beam (deep concrete piers anchored to bedrock) and post-tensioned slabs (steel-reinforced concrete)
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