How to split concrete blocks

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.

Measure the length of the block required for your project.

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

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.

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

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

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.


Practice your technique on broken concrete blocks.


Always wear eye protection when splitting concrete block.

Things You'll Need

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

Emily Patterson has been creating content for websites since 1996. She specializes in home improvement, natural body care and natural cleaning articles. Patterson holds a computing certificate from Penn State University.