How To Cut Cement Board Siding

Use the score and the snap tools.

How to cut cement board siding.

Unlike score and snap you ll need to use a surface. Like the score and snap method set a straightedge across your sheet. The easiest method to cut the hardie board is that you spot the surface and break the sheet along the marked line. You can use diamond cutting blades attached to your circular saw or sliding miter saw.

Wait for the saw blade to warm up and come to full rpm before. In fact you could use a utility knife or a carbide tipped scoring equipment in order to spot the line. For a slow but virtually dustless way to cut siding use power. Lay your cement board out on a work table or between two saw horses.

Mark where you d like to cut the board. Typically siding shears use air. The cleanest way to cut fiber cement siding is by using siding shears. This is the same way of cutting the drywall.

You may need to trace over the line a few times to leave a mark that you can see well. Make sure the line is straight and visible. When cutting fiber cement siding with circular saw use a blade that has only four or six teeth. With the cement board flat use a ruler to guide your pencil as you mark a line where you want to cut the board.