Ever found yourself in need of a custom envelope but didn't want to shell out for expensive stationery? You're in luck! Crafting an envelope from a simple rectangle of paper is easier than you think. With just a few folds and some glue, you can create a personalized envelope that's perfect for letters, invitations, or even small gifts. Let's dive into the step-by-step process of making an envelope with rectangle paper.

Before we begin, gather your materials: a rectangle of paper (any size will do), a ruler, a pencil, scissors or a craft knife, and some glue or double-sided tape. Once you have everything ready, let's start creating your envelope.

Preparing Your Paper
Start by measuring and marking the folds you'll need to make. For a standard envelope, you'll need to fold the paper in half lengthwise, then fold the sides in to meet the center crease. The measurements will depend on the size of your rectangle, so use your ruler to ensure accuracy.

Once you've marked your folds, use the edge of the ruler to score the paper lightly. This will make folding easier and ensure crisp creases. Be careful not to cut through the paper.
Folding the Envelope Flap

Fold the top two corners of your rectangle in to meet the center crease. You should now have a long, narrow strip at the top of your paper. Fold this strip downwards, creating the envelope's flap. The size of this fold will determine how much of the envelope's front will be covered by the flap.
To ensure a neat fold, use your finger or the edge of the ruler to press down firmly along the crease. You can also gently tap the fold on a hard surface to flatten it.
Folding the Envelope Sides

Next, fold the sides of your rectangle inwards, so the edges meet the center crease. These folds will become the sides of your envelope. Again, use your finger or the ruler to press down firmly along the creases, ensuring they're crisp and well-defined.
Once you've folded the sides, you should have a long, narrow strip of paper with a folded flap at one end. This strip will form the bottom and back of your envelope.
Assembling Your Envelope

Now that your paper is folded, it's time to assemble the envelope. Start by opening the envelope's sides and bottom, so it lies flat. You should now have a rectangle with a folded flap at one end and three open sides.
Apply glue or double-sided tape along the edges of the two side flaps. Be careful not to get glue on the inside of the envelope, as this could make it difficult to seal later.


















Securing the Envelope Sides
Fold the side flaps inwards, pressing them firmly against the center crease. Hold them in place for a few seconds to ensure the glue or tape adheres properly. Once the sides are secure, you should have a flat envelope with an open bottom and a folded flap at the top.
If you're using double-sided tape, you can skip the next step. If you're using glue, allow it to dry completely before proceeding. This will ensure your envelope stays closed and maintains its shape.
Sealing the Envelope Bottom
Fold the bottom edge of your envelope upwards, creating a small flap. Apply glue or double-sided tape to this flap, then fold it downwards, pressing it firmly against the inside of the envelope. This will seal the bottom of your envelope, creating a secure, enclosed space.
Again, if you're using glue, allow it to dry completely before using your envelope. This will ensure it stays closed and maintains its shape.
And there you have it! With just a few simple folds and a bit of glue, you've created a custom envelope from a rectangle of paper. Whether you're sending a letter, an invitation, or a small gift, your handmade envelope is sure to make a great impression. Happy crafting!