Retaining wall block count calculator

Calculate block count, base gravel, drainage stone, and total cost for a segmental retaining wall (SRW) install.

Wall length (ft)

Wall height (inches)

Most SRW systems require engineering above 48 in. Stay ≤4 ft for DIY/non-engineered.Block length (inches)

Most SRW blocks are 12, 16, or 17.5 in long.Block height (inches)

4 in or 6 in tall most common.Block $ each

Standard SRW blocks: $3-8 each. Premium / large face: $10-25.Cap block $ per linear foot

Base gravel $ per yard (delivered)

Drainage stone $ per yard (delivered)

Filter fabric (lump sum)

Labor $ per linear foot

DIY: $0. Pro: $30-60/ft for ≤4 ft non-engineered walls.

Total wall cost

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