Make something using cardboard. It can be simple or complex, and may include just cardboard . . or include all sorts of other materials.

There are two primary types of cardboard:

  • corrugated cardboard from shipping-type boxes, and
  • thin single-layer cardboard like from cereal and other types of food boxes

This is a short two-week speed challenge; bust out the crafting tools and make something amazing!

The Cardboard Speed Challenge is closed.

Grand Prize

14 Prizes

Grand Prize

One Grand Prize Winner will receive:

  • $200 Digital Gift Card

First Prize

Three First Prize Winners will receive:

  • $100 Digital Gift Card

Second Prize

Ten Second Prize Winners will receive:

  • $50 Digital 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 May 23, 2022 and Jun 6, 2022 (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.