Overview

From grocery garbage to shipping leftovers, there is cardboard surrounding us. Show us your cardboard creations (including corrugated, singly-ply tagboard, paper rolls, and more) for a chance to win a digital gift card in the Cardboard Speed Challenge.

The Cardboard Speed Challenge is closed.

Official Rules »All Contests »How to Write a Great Instructable »

Grand Prize

9 Prizes

Grand Prize

One Grand Prize Winner will receive:

First Prize

Three First Prize Winners will receive:

Second Prize

Five Second Prize Winners will receive:
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 Mar 29, 2021 and Apr 12, 2021 (11:59pm PT).

Never published an Instructable?
Learn more about how it works.
Why Publish? »
Existing member, but don't have an eligible Instructable?
New Instructable »

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.