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Soil - Bearing Strength

Allowable loads on soil.

Allowable bearing strength of soil:

Soil - Bearing Strength
SoilBearing Load
(kPa)
Clay, soft 100
Sand, dry fine 200
Sand with clay, dry fine 300
Sand, coarse 300
Clay, dry hard 350
Gravel 400
Rock 1000 - 4000
  • 1 kPa = 1 kNm2 = 103 N/m2

Always check local building codes. 

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