How to Make a Mailbox Out of Cardboard

Updated February 21, 2017

Making a mailbox out of cardboard is easy and useful, and kids love to help make them. They can be used to for Valentine cards, notes from grandparents, notes to Santa at Christmas and much more. Let your kids use their creativity to help decorate their own mailbox.

Remove the flat lid of the shoebox and set it aside for later use. Cut off one end of the shoebox, leaving one end open.

Take one piece of white card stock and fold the sides into the shoebox to make a dome shape. If the shoebox is too long, cut the end of the shoebox so that the card stock and shoebox fit snug and evenly. If the card stock is too long for the shoebox, trim the card stock to fit the shoebox. Glue the sides of the card stock to the inside of the box. One end of the shoebox should have a crescent-shaped opening, and the other should have a full opening.

After the glue has dried and the domed-shaped card stock is firmly in place, place the open side of the mailbox down on the shoebox lid and trace around the edges of the mailbox. This will be used to create an end wall for the mailbox. Cut the lid around the traced lines. With packing tape, tape the traced piece to the end of the mailbox, sealing the opening. Tape securely clear around the edges.

Using the packing tape, secure any edges and corners that you want reinforced. Now your mailbox is shaped. The only opening that should exist is the one that is crescent shaped that was formed from the end of the box that was NOT trimmed. This will be the way the mail will be delivered and retrieved.

Paint your mailbox with acrylic craft paint(s). Choose your own colours.

While the paint is drying, take a red piece of card stock and trace out a mailbox flag. See the image for a shape idea. Cut out the flag, and with a craft bracket attach it to the side of the mailbox. The bracket will allow the flag to move up and down.

Finish your mailbox by decorating it the way you want, using holiday or seasonal stickers and pictures or anything else that you like.

Things You'll Need

  • Regular-size shoebox
  • Acrylic craft paint
  • Paintbrush
  • Brown paper bag
  • Scissors
  • White card stock
  • Glue
  • Packing tape
  • Craft bracket
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About the Author

Kelly Nuttall is a student at Utah Valley University in Orem, Utah. She is set to graduate in the spring of 2011 with her bachelor's degree in technical communications. She has been writing for various websites since March of 2009.