How to split concrete blocks

Written by emily patterson
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How to split concrete blocks
Mason's Hammer (marteau à l"ancienne image by Unclesam from

Concrete blocks are used in many building projects. They can be cut with expensive blades and concrete cutting tools. However, they can also be split without the use of rented or purchased tools. Splitting concrete blocks without power equipment is not difficult and is cost-effective for smaller projects.

Skill level:

Things you need

  • Tape measure
  • Straight edge
  • Marker
  • Concrete block
  • 4-inch mason's chisel
  • Mason's hammer
  • Safety glasses or goggles

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  1. 1

    Measure the length of the block required for your project.

  2. 2

    Measure the concrete block from one end on both sides and mark the measurements with a marker.

  3. 3

    Use a straight edge to draw a straight line on each side of the block. Line up the straight edge on the marks and draw a line across the straight edge.

  4. 4

    Score the line on each side of the block by running the corner of a mason's chisel across the line while applying pressure.

  5. 5

    Put on safety glasses or goggles to protect your eyes when splitting the block.

  6. 6

    Place a 4-inch mason's chisel on the line and tap with a mason's hammer. Work both sides gently, and then use additional force on one side to split the block straight along the score.

Tips and warnings

  • Practice your technique on broken concrete blocks.
  • Always wear eye protection when splitting concrete block.

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