How to Cut Corrugated Steel


Corrugated steel provides a durable roofing and siding covering when properly installed on a structure. Cutting corrugated steel without causing distortion or tears is a vital part of installing the material correctly. Distortion and tearing steel sheeting is often caused by using the wrong tool while cutting the thin gauge sheeting. Tools that use tooth style blades catch on the edge of the metal and this leads to the common forms of damage.

Things You'll Need

  • 2 corrugated steel sheets
  • Permanent marker
  • Sheet metal nibbler
  • Mark the cut location on one side of a corrugated steel sheet with a permanent marker.

  • Set a second corrugated steel sheet on top of the marked sheet. Align one edge of the sheet with the cut location mark you made earlier. Drag the permanent marker along the aligned edge of the second steel sheet to mark a cut line. Remove the second steel sheet.

  • Place the marked sheet on an elevated surface with the marked line sitting off the end of the elevated surface.

  • Align the inside edge of a sheet metal nibbler blade with the marked cut line. Depress the trigger of the nibbler and slowly push the nibbler along the cut line. Slow down the speed of the nibbler when cutting down into the valleys of the corrugated sheet.

  • Set the cutoff piece of corrugated steel sheet aside as a marking pattern after the cut is complete.

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