Make a Cardboard Box

Whether you are shipping Christmas presents or replacing an old Scrabble box, there's no need to spend money on pre-built boxes. You can assemble cardboard you have lying around into boxes the perfect size for your project. Corrugated cardboard is the best choice for storing heavy objects or sending something through the mail.

Steps

Making a Cardboard Box

  1. Choose your cardboard. The side of a cereal box can make a small box for home use. Use corrugated cardboard for a sturdier project, or make a larger, decorative box from scrapbooking paper or cardstock.[1] If you have a specific size of box in mind, cut the cardboard to fit:
    • A piece of cardboard makes a square box with sides ¼ the original length. For example, a 12 inch long piece of cardboard will make a 3" x 3" box.
    • The width of the cardboard forms the height, base, and top of the box. For example, if you want to make a 3" x 3" box out of a 12" x 9" piece of cardboard, you'll use 3" of the width to form the base and top, and the remaining 6" will form the height of the box.
  2. Decorate if desired. It's easier to decorate the box before you start cutting and folding. One easy way to do this is to use a piece of wrapping paper about ½" (1.25 cm) larger than the cardboard on all sides. Glue this onto the cardboard with strong glue, then fold over the edges of the wrapping paper and glue them onto the other side.[2]
  3. Draw a line close to one edge of the cardboard. This forms a small "glue flap" that you will later fold over and glue down to help keep the four sides together. The glue flap can be as wide as 2 inches (5 cm) for a large shipping box, or about ¼" (6mm) for a small art project.[3]
  4. Divide the remaining length into four sections. Use a ruler to measure the length of the cardboard, ignoring the glue flap. Mark it at each ¼ of the length, then use the ruler as a straightedge to draw parallel lines through these marks. This should divide the cardboard into four equal sections, that will form the four sides of the box.
    • If you want a rectangular box instead of a square one, use sections with two different measurements. For example, to make a 4" x 2" box, divide the cardboard into a 4" section, a 2" section, another 4" section, and another 2" section, in that order.
  5. Score the lines if using thick cardboard. Place the ruler along the lines you just drew and press along them to make them easier to fold. Use a utility knife for extra thick material such as corrugated cardboard, using light pressure only. Use a bone folder or empty ballpoint pen for medium-weight material such as posterboard.[2]
  6. Bend the sides. Fold the sides inward from both ends to form a stack, then unfold. This creases the paper for easier folding later.
    • Bend thick material so the cut score is on the outside of the box. You can bend medium-weight material either way.[2]
  7. Draw the flaps perpendicular to the sides. Divide the length of one box side (the distance between two lines) by two. Measure this distance from one edge of the cardboard and draw a line width-wise at this point, running across the lines you folded. Measure the same distance starting from the opposite edge and draw a second line.
    • For example, if you are making a 3" x 3" box, divide 3" by 2 to get 1.5". Arrange the paper so the creased lines run vertically. Draw one horizontal line 1.5" from the bottom edge, and a second horizontal line 1.5" from the top.
    • If your box is not square, you can use either side of the box for this calculation. Using the longer side will give the box a sturdier base and top. Using the shorter side will make a taller but weaker box.
  8. Cut each flap. Cut along the vertical "side" lines until you hit the horizontal "flap" lines. This should leave you with four flaps along the top and four along the bottom.
    • Score and crease these as before if using thick cardboard.
  9. Fold and tape the four sides together. Bend the four sides to form the frame of the box. Fold the narrow glue flap over the edge of the side and tape or glue it down.[1]
  10. Fold the base of the box. Tuck the flaps on one side together, so each one overlaps the flap next to it. Reinforce this base with tape.
    • If you are storing lightweight objects, you can just close the flaps together without trying to tuck them into place. Reinforce this simple fold with tape on the inside as well as the outside, to prevent the flaps from poking up.
  11. Tuck the top flaps together. Tape the top as well if you are making a decorative box, or if you've put something inside for shipping. Otherwise, just leave them tucked together for easy opening.
  12. Finished.

Combining Two Cardboard Boxes

  1. Choose two boxes of equal size. If you need to store or ship an extra-large item, you can combine two ordinary cardboard boxes. The two boxes will be stacked on top of each other, so make sure each one is at least half as tall as the item you plan to store. You can use store-bought boxes, or create two templates yourself using the instructions above.
  2. Assemble the first box. Tape the base securely, but leave the top open.
  3. Tape the top flaps into a vertical position. Stand each flap on the top of the box upright, to extend the height of the box sides. Tape the flaps so they stay up.[4]
  4. Assemble the second box with its base open. Tape the top flaps of the second box in a vertical position, as you did with the first one. Leave the base flaps open for now.
  5. Tape the two boxes together. Slip the second box upside-down over the first, with the two sets of upright flaps overlapping. Tape or glue the two sets of flaps together..
  6. Pack the box. Now you have one extra-tall box, with the open "base" of the second box serving as the top. Insert your object and packing materials through this hole, then tape the box closed when you are ready
  7. Finished.

Things You'll Need

  • Cardboard
  • Scissors
  • Ruler
  • Utility knife, bone folder, or empty ballpoint pen
  • Wrapping paper (optional)
  • Tape
  • Glue

Tips

  • If you are using the box to store something fragile, make your box an inch taller and wider to make room for packing material like bubble wrap or newspaper.



Related Articles

Sources and Citations

  1. ↑ 1.0 1.1 http://www.homemade-gifts-made-easy.com/make-your-own-gift-box-2.html
  2. ↑ 2.0 2.1 2.2 http://www.auntannie.com/BoxesBags/ShirtBox/
  3. ↑ http://www.howtomakeacardboard.com/cardboard_box.html
  4. ↑ http://www.containerstore.com/medialibrary/pdf/tips/Shipping_Mailing_Guide.pdf
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