
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
First Prize
Second Prize

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

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).
Learn more about how it works.

Enter
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.

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

Judging
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.

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