Paper cup

A few considered folds turn a square into a little pocket. An inviting first lesson in aligning edges and making a clear crease. Use it to hold dry treasures rather than drinks.

Before you begin

1 sheet · Square paper

15 × 15 cm

No scissors needed

Start folding

This lesson is being checked for folding accuracy. It has not yet passed a physical fold-through review.

Step-by-step instructions

Read through the fold before you begin, or open any step in the folding viewer.

Printable guide (opens a new tab)

Meet your paper
Place your square with the colored side down. Turn it so one corner points toward you.
Look for: The white side faces you.
See this fold
Make a triangle
Bring the bottom corner to the top corner. Match the edges, then crease from the center outward.
Look for: You have a triangle with its long edge nearest you.
See this fold
Bring the left corner across
Fold the left corner to the opposite sloping edge. Position it so the top edge of the folded flap is horizontal.
Look for: The flap’s upper edge is parallel to the base of the triangle.
See this fold
Bring the right corner across
Fold the right corner across to the left, matching the height of the first flap.
Look for: Two crossed flaps make a five-sided outline.
See this fold
Fold down the front tip
Take only the front layer of the top point. Fold it down over the crossed flaps.
Look for: The front tip locks the two side flaps in place.
See this fold
Turn your cup over
Turn the whole model over from side to side. Keep the opening at the top.
Look for: The remaining top point faces you.
See this fold
Fold down the other tip
Fold the remaining top point down on the reverse side. Press the crease firmly.
Look for: Both top tips are folded down on opposite sides.
See this fold
Open the pocket
Gently separate the two layers along the top edge. Press the bottom corners inward a little to open the cup.
Look for: A small pocket opens between the front and back walls.
See this fold