Create a 3D Heart Out of Cardboard: A Step-by-Step Guide

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Making a 3D heart out of cardboard can be a fun and creative activity for people of all ages. Whether you’re looking for a unique decoration for your home or a heartfelt gift for a loved one, a cardboard heart can be a great option. With just a few simple materials and some basic crafting skills, you can create a beautiful and realistic 3D heart that will impress everyone who sees it.

To start, you’ll need a few supplies, including cardboard, scissors, glue, and some decorative materials like paint or glitter. Once you have your materials ready, you can begin by cutting out the basic shape of the heart from the cardboard. From there, you can add layers and details to create a more realistic and dimensional look. With a little creativity and patience, you can create a stunning 3D heart that will be the envy of all your friends and family.

Whether you’re an experienced crafter or just starting out, making a 3D heart out of cardboard can be a fun and rewarding activity. With a few simple steps and some basic materials, you can create a beautiful and unique decoration that will add a touch of love and warmth to any space. So why not give it a try and see what kind of amazing creations you can come up with?



Cardboard is the primary material required for making a 3D heart. You can either use a new cardboard box or an old one. The size of the cardboard will depend on the size of the heart you want to make. A medium-sized cardboard box is usually enough to make a 3D heart.


You will need scissors to cut the cardboard into the desired shape. Make sure to use sharp scissors to avoid any accidents. You can use any type of scissors, but it’s recommended to use scissors with a pointed tip for better precision.


A pencil is required to draw the shape of the heart on the cardboard. You can use any type of pencil, but it’s recommended to use a pencil with a sharp tip for better accuracy.


A ruler is needed to measure the dimensions of the heart and ensure that it is symmetrical. You can use any type of ruler, but it’s recommended to use a metal ruler for better accuracy.


Glue is required to stick the different parts of the heart together. You can use any type of glue, but it’s recommended to use a strong adhesive, such as hot glue or super glue, for better durability.

In conclusion, these are the basic materials required to make a 3D heart out of cardboard. Make sure to have all the materials ready before starting the project to avoid any interruptions.

Creating the Base

Creating the base is the first step in making a 3D heart out of cardboard. This section will guide you through the process of drawing, cutting, and folding the heart shape.

Drawing the Heart Shape

The first step is to draw the heart shape on a piece of cardboard. You can use a heart template or draw it freehand. Make sure the heart is big enough to create a 3D effect. You can use a ruler to draw straight lines and a compass to draw curves.

Cutting Out the Heart Shape

Once the heart shape is drawn, use scissors or a craft knife to cut it out. Be careful not to damage the edges of the heart. You can use sandpaper to smooth out any rough edges.

Folding the Heart Shape

Fold the heart shape in half vertically. Then, fold the top of the heart down to create a crease. Unfold the top of the heart and fold it back in the opposite direction. This will create a valley fold. Repeat this process on the bottom of the heart to create another valley fold.

Next, fold the sides of the heart inward to create mountain folds. These folds will create the 3D effect of the heart. Make sure the folds are even and symmetrical.

In conclusion, creating the base of the 3D heart is an easy process that requires drawing, cutting, and folding the heart shape. Make sure to take your time and be precise with your cuts and folds.

Adding Dimension

Creating the Inner Layers

To add dimension to our cardboard heart, we will create inner layers that will give the heart a more realistic look. Start by cutting out two heart shapes from cardboard, one slightly smaller than the other. Then, cut out strips of cardboard about 2 inches wide.

Fold the strips in half lengthwise and glue them to the larger heart shape, following the curves of the heart. Make sure to leave space between each strip to create depth. Repeat this process with the smaller heart shape, but this time glue the strips on top of the larger heart shape.

Attaching the Inner Layers

Once you have created the inner layers, it’s time to attach them to the main heart shape. Apply glue to the back of the smaller heart shape and carefully place it on top of the larger heart shape, lining up the edges.

Next, cut out small pieces of cardboard and glue them in between the layers to fill in any gaps. This will help create a more seamless look.

Finally, cut out two more heart shapes, one slightly larger than the other, and glue them to the back of the heart. This will help give the heart more stability and make it easier to display.

By following these steps, you can create a 3D heart out of cardboard that looks realistic and adds dimension to your craft project.

Decorating the Heart

Once you have assembled your 3D cardboard heart, it’s time to decorate it! There are several ways to make your heart look beautiful and unique. In this section, we will discuss two popular methods: painting the heart and adding details.

Painting the Heart

Painting your cardboard heart is a fun and creative way to give it a personalized touch. Here’s how you can do it:

  1. Choose your paint: Acrylic paints work best for cardboard. You can use any color you like, or even mix them to create a custom shade.
  2. Prepare your work area: Cover your work surface with newspaper or a drop cloth to protect it from paint spills.
  3. Apply a base coat: Use a large brush to apply a base coat of paint to the entire surface of the heart. Let it dry completely before moving on to the next step.
  4. Add details: Once the base coat is dry, use a smaller brush to add details such as stripes, polka dots, or other designs. Let the paint dry completely before handling the heart.

Adding Details

Adding details to your cardboard heart can give it a unique and personalized look. Here are some ideas to get you started:

  • Glitter: Use glue and glitter to add sparkle to your heart. You can apply the glitter to the entire surface or just to certain areas.
  • Ribbon: Tie a ribbon around the base of the heart to add a decorative touch.
  • Stickers: Use heart-shaped stickers or other decorative stickers to add a pop of color to your heart.
  • Gems or beads: Glue small gems or beads to the surface of the heart for a 3D effect.

Remember, the possibilities are endless when it comes to decorating your cardboard heart. Use your imagination and have fun!


Congratulations! You have successfully created a 3D heart out of cardboard. This project requires patience, precision, and creativity. It is a fun and educational activity that can be done alone or with friends and family.

By following the steps outlined in this article, you have learned how to create a 3D heart out of cardboard using simple materials. You can customize your heart by adding different colors, patterns, and textures to make it unique.

Remember to take your time and be careful when cutting and folding the cardboard. It is important to measure accurately and follow the instructions closely to achieve the desired result.

This project is a great way to explore your creativity and learn new skills. It is also an eco-friendly alternative to buying expensive decorations. You can use your 3D heart as a decoration for your home, office, or as a gift for someone special.

We hope you enjoyed this article and found it helpful. If you have any questions or suggestions, feel free to leave a comment below. Happy crafting!