Structural
Retaining Wall Calculator
Calculate concrete for retaining walls including gravity walls and cantilever walls. Essential for landscaping projects that require soil retention and terracing.
Enter Your Measurements
Formula Used
Wall Volume + Footing Volume = Total
Pro Tips
- •Walls over 4 feet require engineering
- •Include drainage system behind wall
- •Use proper backfill material
- •Consider wall batter for stability
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Frequently Asked Questions
How thick should a concrete retaining wall be?
Base thickness should be 1/2 to 2/3 of the wall height. A 4-foot wall needs about 16-24 inch base thickness.
Do I need a drain behind my retaining wall?
Yes, proper drainage is essential. Install perforated drain pipe at the base with gravel backfill to prevent water pressure buildup.