Retaining Wall Cost Calculator
Estimate your retaining wall cost from its length, height and material. National-average installed estimates.
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How Much Does a Retaining Wall Cost?
Retaining walls are priced per square foot of wall face (length × height) installed. Typical US ranges:
| Material | Per sq ft of face (installed) |
|---|---|
| Timber | $15 – $30 |
| Concrete block | $20 – $40 |
| Poured concrete | $25 – $50 |
| Natural stone | $30 – $70 |
What Drives the Price
Wall height (taller walls need engineering and drainage), soil conditions, drainage, and site access all affect cost. Walls over about 4 feet usually require a permit and engineering.
US national-average installed estimates. Engineering, drainage and site access vary the price. Not a formal quote.
Frequently Asked Questions
Concrete block runs about $20-40 per square foot of wall face installed. A 30 ft long, 4 ft high block wall (120 sq ft face) is roughly $2,400-$4,800.
Walls over about 4 feet tall usually require a permit and an engineer's design. Check local rules before building.
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