Hardscape Tools

Retaining WallCalculator

Calculate concrete blocks, gravel base, and drainage for retaining walls. Includes caps, geogrid, and installation materials.

Wall Specifications

Materials

Blocks0blocks
Courses0courses
Wall Caps0
Gravel Base (6")0 tons
Drainage Pipe0 ft
Geogrid (sq ft)0
Block Adhesive0 tubes
Total Cost$0

Block Coverage

  • 6"×16": 1.33 blocks/ft
  • 8"×18": 1.0 blocks/ft
  • 4"×12": 2 blocks/ft

Formula

Blocks/Course = Length ÷ Block Length

Courses = Height × 12 ÷ Block Height

Total = Blocks/Course × Courses

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