Cutting corrugated metal with anything producing heat can void the warranty by your manufactures and can make permanent damage to the metal sheets causing them to rust.
Cutting ribbed sheet metal.
You can cut corrugated metal both parallel to the ridges as well as across the ridges.
Hold the side of the metal sheet and put your snips around the edge.
There are some cuts that you can do with decent tin snips.
A tool like a nibbler is fast and easy to maneuver around to cut circles corners and angles in sheet metal work with out jamming like electric shears or tin snips would.
Practice until you are confident with navigating the corrugations.
This will not only brace it to keep it in place but you ll be able to pull it up as you cut.
Need to keep in mind that the left side of the cutters cut the metal cleanly however the metal on the right side is quite rough.
Draw a line down the length or width of the sheet metal using a pencil to mark the cut line.
Whether you use an angle grinder or a circular saw the heat damages the edges and the shower of hot sparks can destroy the protective coating and burns the paint finish.
Lay the piece of corrugated sheet metal on a flat surface and use a tape measure to determine where it needs to be cut.
They look like scissors and work fine with sheet metals like brass aluminum tin steel etc.
Hold the snips loose in your hand and place the two blades around the edge that you d like to cut.
But the discs wear down quickly cut slowly and shrink in diameter as you use them.
The best tool to cut sheet metal is an electric nibbler tool it cuts corrugated iron sheet metal and even metal car panels easily.
You can t cut along the sheet only effective cutting is cross cutting the corrugated iron.
Instead we recommend using a diamond blade that s rated to cut ferrous metal.
Also helps to have another pair of hands to wrestle with the metal.
Tin snips or aviation snips are one of the most widely used tools to cut sheet metals.
Use your nondominant hand to hold the side of the metal.