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How to Cut an Aluminum Sheet

Updated February 21, 2017

Aluminium sheeting is a common construction material that is good for numerous projects. Some common uses of aluminium sheeting include flashing, siding, roofs and duct work, not to mention the numerous smaller craft projects. Cutting aluminium sheeting is a fairly straightforward process that can be mastered by any competent do-it-yourselfer.

Measure out the size and shape piece of aluminium needed with a standard tape measure. Mark the sheet with a felt tipped marker. Before moving to the cutting process put on protective gloves and eye wear. A small metal sharp can do serious harm.

Determine which of the three colour-coded styles of metal snips will be required for the job. Curves to the left require the green-handled snips; right curves need the red-handled snips; for straight cuts use the yellow-handled snips. Many jobs will require more than one snip.

Hold the sheet in one hand and the snips in your dominant hand as you would a piece of paper and scissors. Insert the sheet of aluminium between the open blades making a right angle between sheet and blade.

Refrain from using the total length of the snip's blades. Rather use a long even stroke about ¾ of the length of the blade. The cut edge of the sheet will be sharp so handle with gloves until properly installed.

Things You'll Need

  • Metal snips
  • Work gloves
  • Protective eye wear
  • Measuring tape
  • Felt marker
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About the Author

Steve Bradley is an educator and writer with more than 12 years of experience in both fields. He maintains a career as an English teacher, also owning and operating a resume-writing business. Bradley has experience in retail, fashion, marketing, management and fitness. He holds a Bachelor of Arts in English and classics.