How to Fold Paper: 10 Easy Folds for Beginners

Folding paper might seem too simple to need instructions, but a crisp fold makes the difference between a messy note and a polished origami crane. Whether you’re making a paper airplane, a greeting card, or just want to store a letter neatly, the same principles apply: work on a flat surface, align edges exactly, and press firmly along the crease. This guide walks you through the core folds and the habits that make them come out right every time.

What You’ll Need

A sheet of paper (any size; printer paper or origami paper works best for practice)
A flat, clean surface (a table or desk)
Optional: a bone folder or the back of a spoon to sharpen creases
Optional: a ruler if you need to fold at a specific measurement

Step-by-Step

Start with a clean, flat sheet. Place the paper on your surface with the side you want visible facing down (if there is one). Smooth out any wrinkles or curls with your hand—creases from previous folds will make new folds less accurate.
Make the first fold (halve it). Bring one edge of the paper to the opposite edge, aligning them exactly. For a rectangle, fold a short edge to the other short edge to get a smaller rectangle; fold a corner to the opposite corner for a triangle. Hold the edges together with one hand.
Crease from the center outward. Starting at the middle of the fold, press down with your thumb or a bone folder, then slide outward to each end. This prevents bubbles and keeps the crease straight. Run your fingernail along the fold once to sharpen it.
Fold in half again (if needed). For a smaller size, repeat the same process: bring the new folded edge to the opposite folded edge. Always align edges precisely before pressing—even a 1 mm offset will show.
Make a corner fold (for triangles or flaps). Take one corner and fold it to meet the opposite edge or a center point. The corner should touch exactly; use your fingernail to pinch the fold at the point where the corner lands.
Use a guide for equal folds. If you need three equal sections, don’t guess. Fold the paper in half, then fold one half to the crease, then the other half to that new crease. Or use a ruler to mark light pencil lines where folds should go.
Press each crease firmly. After every fold, run a bone folder or the back of a spoon along the crease. This sets the fiber and makes the fold permanent. For thin paper, use light pressure to avoid tearing.
Unfold and refold to correct. If a fold is slightly off, don’t fight it. Unfold completely, smooth the paper, and start that fold again. Paper has memory, so a second attempt usually works better than forcing a bad crease.
Stack multiple sheets carefully. If folding several sheets at once (like for a booklet), align all edges perfectly, then fold them together. The outer sheets will crease more sharply than inner ones, so press harder on the stack.
Finish with a final press. Place the folded paper on a flat surface and press down with your palm for a few seconds. This flattens the fold and makes it lie perfectly flat, which is important for envelopes or cards.

Common Mistakes

Folding on a soft surface (like a bed or lap) gives uneven creases. Always use a hard, flat table.
Rushing the alignment—edges that are even 1 mm off create a crooked final product. Take a second to check before pressing.
Creasing with a fingernail on delicate paper can leave permanent white marks or tears. Use a bone folder or the side of a pen cap instead.
Folding too quickly without pressing the crease fully results in a fold that pops open. Always run a tool along the fold.
Using wrinkled or curled paper—old paper resists clean folds. Smooth it out first or use a fresh sheet.

Tips

For origami, use thin, square paper—it folds more precisely than thick printer paper.
If you need a very sharp crease, fold, then press the fold with a warm (not hot) iron on low heat, but test on scrap paper first.
When folding a letter to fit an envelope, measure the envelope first and mark the paper lightly with a pencil.
To avoid smudging ink, fold after the ink is completely dry.
Practice on scrap paper before folding your final sheet—this is especially helpful for complex origami.

Troubleshooting

The fold is crooked. Unfold, smooth the paper, and realign the edges. If the paper has a crease from a previous fold, it may pull the new fold off—use a fresh sheet if needed.

The paper tears at the crease. This happens with thin or brittle paper. Use less pressure when creasing, and try a bone folder instead of your fingernail. For future projects, choose a slightly thicker paper.

The fold won’t stay flat. The crease wasn’t pressed hard enough. Refold and press firmly with a tool. If the paper is thick, score the fold line lightly with a blunt knife (on a cutting mat) before folding.

Bubbles or wrinkles appear. This is from folding too quickly or on an uneven surface. Unfold, smooth the paper, and refold slowly, pressing from the center outward.

The paper curls after folding. This is normal with some papers. Place a heavy book on the folded paper for a few minutes to flatten it.

Frequently Asked Questions

What type of paper is best for folding?

Thin, smooth paper like origami paper (kami) is easiest. Printer paper works for simple folds, but it’s thicker and can be harder to crease sharply.

How do I fold paper into thirds without a ruler?

Use the “S” method: fold the paper into an S shape, adjusting the three sections until they’re equal, then press the creases. This takes a few tries but works without measuring.

Why does my paper keep unfolding?

You likely didn’t press the crease firmly enough. Run a bone folder or your fingernail along the fold a few times. Also, make sure you’re folding on a hard surface.

Can I fold paper that has writing on it?

Yes, but wait for the ink to dry completely to avoid smudging. Folding over wet ink can also make the paper tear.

How do I make a crisp fold for a card?

Score the fold line first using a bone folder and a ruler, then fold along the score. This creates a clean, professional crease.

Is it better to fold with the printed side in or out?

For most folds, the side you want visible on the outside should face up when you start. For origami, follow the specific pattern instructions, as they often depend on color placement.

Sources: OrigamiUSA. Menus and buttons can differ slightly by version. Spotted something out of date? Tell us.