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How to Make a Triangle Out of Wood

Updated February 21, 2017

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.

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.

Tip

Don't try to cut a triangle like this on a table saw. The angle is too steep.

Warning

Always wear safety glasses when sawing wood on a band saw.

Things You'll Need

  • Straightedge
  • Plywood, 3/4-by-18-by-18 inches
  • Pencil
  • 100-grit sandpaper
  • Hand block
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About the Author

Specializing in hardwood furniture, trim carpentry, cabinets, home improvement and architectural millwork, Wade Shaddy has worked in homebuilding since 1972. Shaddy has also worked as a newspaper reporter and writer, and as a contributing writer for Bicycling Magazine. Shaddy began publishing in various magazines in 1992, and published a novel, “Dark Canyon,” in 2008.