For this Speed Challenge, make something out of cardboard!

Whether you use corrugated cardboard (like from shipping boxes) or single-ply cardboard (from cereal and food-type boxes), or cardboard tubes (toilet paper and paper towel rolls, or similar) – all projects that include cardboard are eligible.

There is a special Judges' Prize for the most impressive and creative use of recycled cardboard tubes.

Get crafty fast; this challenge is only open for two weeks!

The Cardboard Speed Challenge is closed.

Grand Prize

20 Prizes

Grand Prize (1)

One Grand Prize Winner will receive:
  • $500 Amazon Gift Card

Judges' Prize (1)

One Judges' Prize Winner will receive:
  • $250 Amazon Gift Card

First Prize (3)

Three First Prize Winners will receive:
  • $250 Amazon Gift Card

Second Prize (5)

Five Second Prize Winners will receive:
  • $100 Amazon Gift Card

Runner Up (10)

Ten Runner Up Winners will receive:
  • $50 Amazon Gift Card
How It Works

Write an Instructable

Create a new Instructable that fits the guidelines outlined in the contest description above. To be eligible, Instructables must be published between Apr 6, 2020 and Apr 20, 2020 (11:59pm PT).


Upon publishing your Instructable you'll see checkboxes for open contests. Select Cardboard Speed Challenge. If you have entries currently eligible for entry, it will also show up by clicking "Enter this Contest" on the right side of this page.


Entries are accepted by Instructables staff within one business day Monday - Friday. What matters is the submission time, not acceptance time.


A panel of judges made up of Instructables staff and respected members of the community rate the finalists. The averages of the ratings determine the winners.


When the winners are decided they will be notified and announced here on the contest page.