How To Cut Concrete Blocks

Mark the cut and clamp the stone or paver to a stable work surface.

How to cut concrete blocks.

If you d like to be as accurate as possible hold the straight edge of a ruler across the block at. Concrete is a mix of sand gravel cement and water and it is everywhere. Cut through the concrete block along the score marks with the angle grinder. Next proper safety guidelines and equipment are discussed.

Power saw and concrete blade. Use the chalk to mark the spot where you ll cut the block. For a larger project or more accurate cuts a circular saw with a concrete blade is a good option. Cutting hollow concrete block first score the line.

For splitting masonry blocks two types of blocks that are manufactured with splitting. Score the length of the cut three or four times with the chisel. For splitting concrete blocks a hammer as well as a chisel are required. If your cut doesn t need to be exact use a cold chisel and hand sledge to cut the concrete.

Cut around the entire block with the saw then adjust it so it will cut 1 4 inch to 1 2 inch deeper into the block. For cutting concrete blocks you can either use a skill saw with a masonry blade or a masonry saw. Cut the block allowing the saw and blade to do most of the work don t apply too much force. A power saw produces a cleaner more even cut than does chiseling.

Make a series of passes until you have cut through the concrete block. This video describes the process of split and cutting concrete blocks. If cutting straight lines completely across the block s face cut both outside edges before cutting the center of the line. When fitted with a carbide grit blade reciprocating saws work well to cut and shape concrete block.

If cutting a hole in the center of the concrete block work the angle grinder s blade through the center of each score mark. The saws can be difficult to control but offer a wider range of cuts than many masonry and circular saws. For example if the space that the cinder block needs to fit into is 8 inches 20 cm long measure 8 inches 20 cm in from the end of a cinderblock and make a chalk mark. A circular saw with a masonry blade can also be used to either score or completely cut through the block.