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Tools Vault Empire
Hardscape Engineering & Soil Retention Model

Retaining Wall & Drainage Sizer

Prevent structural blowout. Accurately calculate modular concrete blocks, cap stones, buried base leveling courses, and 3/4" crushed drainage gravel backfill.

Wall Dimensions

Over 4ft typically requires permit & geogrid

Materials Takeoff

Total Blocks to Order (incl. base)
210 Blocks
Cap Stones Needed: 40 Cap Stones
Drainage Gravel Backfill (3/4" stone): 7.8 Tons (5.6 cu yd)
Estimated Material Cost: $1,680
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