Cut Sheet Metal Without Curling

How to cut thin sheet metal and keep it flat.

Cut sheet metal without curling.

If you use metal shears to cut thin sheet metal such as duct metal it curls and can be difficult to flaten properly. How to cut sheet metal manually. To cut straight lines use an electric saw. Start by taping both sides of the sheet metal directly over the line you want to cut and clamp the metal to a work station so it doesn t move.

These photo steps show that it can be done using a utility knife. The illustrations are for a small bracket but i have cut 3 foot. It involves a bit of more work but the good thing is that most of the tools required are very basic.