How to Make a Cube out of Poster Board

How to Make a Cube out of Poster Board
Written By
Pamela Martin
Pamela Martin
Published: Jun 25, 2010
Updated: Feb 23, 2021
1 minute read

Make a model of a cube for your math class or create a giant pair of dice with just a sheet of poster board, scissors, a ruler and some tape. Once you’ve mastered the 6 1/2-inch cube, you can easily make cubes in all sizes.

Things You'll Need:

Things You Will Need

  • Craft Knife (Optional)
  • Scissors
  • 28-By-22-Inch Poster Board
  • Pencil
  • Ruler
  • Clear Packing Tape
  • Measure and mark a 6 1/2-by-1-inch rectangle near the top center of the poster board.

    Mark a 6 1/2-inch square below the rectangle with the shapes sharing a side.

    Make three more 6 1/2-inch squares below the first, each adjoining the adjacent square.

    Measure and mark a 6 1/2-inch square to the left of the second square from the top, again adjoining that square.

    Repeat on the right side.

    Make a 6 1/2-by-1-inch rectangle on the outside edges of each of the last two squares.

    Cut out the cross-shaped template.

    Score the remaining lines lightly with your scissors or with a craft knife.

    Fold on the scored lines to form the cube.

    Tuck the 1-inch tabs into the folded cube.

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    Tape the edges together with the clear packing tape.

    Pamela Martin

    Pamela Martin has been writing since 1979. She has written newsletter articles and curricula-related materials. She also writes about teaching and crafts. Martin was an American Society of Newspaper Editors High School Journalism Fellow.…

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