Retaining Wall Cost Calculator
Estimate retaining wall cost by material, height, and length.
Retaining Wall Cost
What This Calculator Does
The Retaining Wall Cost Calculator estimates the cost of building a retaining wall based on wall dimensions, material type, and 2026 US national average contractor rates. Enter the wall length and height to get material, labor, and total cost estimates.
Retaining walls prevent soil erosion and create usable flat areas on sloped properties. Costs depend heavily on wall height - taller walls require engineered designs and more substantial materials. Walls over 4 feet generally need a structural engineer's approval.
How to Use
- Measure the wall length (in feet) and planned wall height (in feet).
- Select the wall material - concrete block, timber, or natural stone.
- Click "Calculate" to see the estimated cost range.
- Review the line-item breakdown: materials, labor, drainage, and excavation.
- Add 10% for curved walls or corners that require cut blocks.
Reference Table
| Material | Cost/sq ft Face | 50x3 ft | 100x4 ft | Notes |
|---|---|---|---|---|
| Concrete Block | $25-$45 | $3,750-$6,750 | $10,000-$18,000 | Most durable, 50+ yrs |
| Timber (6x6) | $15-$30 | $2,250-$4,500 | $6,000-$12,000 | Economical, 10-15 yrs |
| Natural Stone | $30-$60 | $4,500-$9,000 | $12,000-$24,000 | Premium look, lifetime |
| Interlocking Pavers | $20-$40 | $3,000-$6,000 | $8,000-$16,000 | Good durability |
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Frequently Asked Questions
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