How to Make a Triangle Out of Wood

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A triangle is a three-sided figure with three angles. An equilateral triangle has three equal sides, but most woodworking triangles have unequal angles and two sides that are equal with one side being slightly longer. You can use them on signs, tables, shelves or anywhere you need braces. Its easy to make a triangle out of wood for structural, artistic or craft purposes using a square piece of plywood and a band saw. One square of plywood will yield two identical triangles.

Things You'll Need

  • Straightedge
  • Plywood, 3/4-by-18-by-18 inches
  • Pencil
  • 100-grit sandpaper
  • Hand block
  • Lay a straightedge across the plywood lining it up with opposite corners diagonally.

  • Draw a line using the straightedge and a pencil from corner to corner.

  • Cut along the line with a band saw to create two identical triangles.

  • Sand the freshly cut edge of the triangle with 100-grit sandpaper attached to a hand block.

Tips & Warnings

  • Don't try to cut a triangle like this on a table saw. The angle is too steep.
  • Always wear safety glasses when sawing wood on a band saw.

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  • Photo Credit Jupiterimages/Photos.com/Getty Images
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