Lay the piece of corrugated sheet metal on a flat surface and use a tape measure to determine where it needs to be cut.
Cutting ribbed sheet metal.
Hold the side of the metal sheet and put your snips around the edge.
The best tool to cut sheet metal is an electric nibbler tool it cuts corrugated iron sheet metal and even metal car panels easily.
But the discs wear down quickly cut slowly and shrink in diameter as you use them.
You can cut corrugated metal both parallel to the ridges as well as across the ridges.
You can t cut along the sheet only effective cutting is cross cutting the corrugated iron.
This will not only brace it to keep it in place but you ll be able to pull it up as you cut.
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.
Use your nondominant hand to hold the side of the metal.
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.
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.
Tin snips or aviation snips are one of the most widely used tools to cut sheet metals.
Cut metal roofing with electric shears electric metal shears come in two varieties a standard plug in in power tool or better an attachment for your impact driver this is best done with malco tools.
Draw a line down the length or width of the sheet metal using a pencil to mark the cut line.
Practice until you are confident with navigating the corrugations.
Such as straight cut snips left cut the right cut etc.
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.
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.
