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Calculate material quantities for retaining walls including concrete, steel reinforcement, backfill, and drainage aggregate. Free construction calculator.
Default: 0.6 × Height
Default: 0.3 × Base Width
Default: Wall Height
Typical: 5-15%
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Estimate concrete, steel, and backfill quantities with practical assumptions for gravity and cantilever walls.
Pa = 1/2 Ka γ H²FSsliding = resisting / driving ≥ 1.5FSot = resisting M / overturning M ≥ 2.0qmax = W/B × (1 + 6e/B)