Success usually comes to those who are too busy to be looking for it.Henry David Thoreau

How to Make a Mailbox Out of Cardboard?

How to Make a Mailbox Out of Cardboard?

Cardboard is a versatile material that can be used to make all sorts of things, including mailboxes! In this article, we will answer some common questions about how to make your own mailbox out of cardboard. First, we will discuss the different types of cardboard that you can use. Then, we will show you how to measure and cut the cardboard. Finally, we will teach you how to assemble your mailbox. Let’s get started!


To make a mailbox out of cardboard, you will need some basic materials. These include:

  • Cardboard: Choose either corrugated or regular cardboard for your project. Corrugated cardboard is stronger and more durable, while regular card provides a smooth finish.
  • Tape: You can use either duct tape or masking tape to secure the pieces together.
  • Markers: Use markers to draw on the patterns and shapes that you need for your mailbox design.
  • Scissors: You will need scissors to cut out the parts from the cardboard.
  • Glue: A strong glue like wood glue or superglue will help keep your mailbox together.

Once you have gathered these materials, you are ready to start building your mailbox!


In addition to the materials listed above, you will also need some tools. These include:

  • Ruler: Use a ruler to measure and draw straight lines on your cardboard.
  • Pencil or marker: You’ll need a pencil or marker for drawing shapes onto your cardboard.
  • X-acto knife: An X-acto knife will help you cut out curved shapes in your cardboard.
  • Drill: A drill is useful for making holes in the cardboard that can be used to attach hinges and fasteners.
  • Hinges and fasteners: Finally, you may need some hinges and fasteners if you decide to add a lid to your mailbox.



Once you have all of the materials and tools needed to make your mailbox, it’s time to start building. Remember to take your time and be careful when working with cardboard, as it can tear easily. Use a ruler or straight edge when measuring and cutting to ensure that your pieces are cut accurately. Finally, use strong glue or tape to secure the pieces together for a sturdy mailbox that will last for years!

Step 1: Measure and Cut

The first step in making your mailbox is to measure and cut the cardboard. Start by measuring the length and width of your desired mailbox. Then, use a ruler to draw straight lines on the cardboard, following the measurements you have taken. Finally, cut out the pieces using either scissors or an X-acto knife.

Step 2: Assemble

Once you have cut out all of the pieces, it’s time to assemble your mailbox. Start by laying out the pieces on a flat surface and arranging them according to your design. Then secure the pieces together using tape or glue. If necessary, you can use hinges and fasteners to attach a lid to your mailbox. To add a personal touch to your mailbox, feel free to decorate with markers or any other decorative items that you wish!

Step 3: Enjoy

And there you have it! You have now successfully made your own mailbox from cardboard. Congratulations on completing this project! Now, all that’s left to do is fill up your new mailbox with letters and packages, and enjoy the satisfaction of a job well done.

Step 4: Maintenance

Making a mailbox out of cardboard requires regular maintenance to ensure it stays in good condition. Make sure to inspect the box regularly for any signs of wear and tear, such as tears or cracks. To ensure your mailbox stands the test of time, reinforce any vulnerable spots with glue or tape. With adequate upkeep, you can anticipate years of use from this sturdy structure!

Step 5: Get Creative

Now that you have the basics down, why not get creative? There are so many possibilities when it comes to designing and decorating your mailbox. Add patterns or colors, paint it different shades, or even add some sparkles if you’re feeling adventurous. The sky’s the limit! [1]


How do I make my own mailbox?

Making your own mailbox is a fairly simple process. Start by gathering the materials you will need, such as cardboard, tape, markers, scissors, glue, and any other tools that may be necessary. Then measure and cut out the pieces of cardboard according to your design. Assemble the pieces together using either tape or glue. Finally, decorate your mailbox with markers or other embellishments if desired!

How do I make my own mailbox?

How do I build a strong mailbox?

In order to build a strong mailbox, it is important to use the right materials. Start by choosing a sturdy cardboard material that won’t easily tear or bend. Also, keep in mind that corrugated cardboard is much stronger than regular cardstock and will provide better protection for your mail. Before you kick off your project, make sure that all the tools and materials you’ll be using are sharpened, clean, and in good condition! [2]

What is the best wood to make a mailbox?

The best wood to make a mailbox is sturdy plywood. Plywood is strong yet lightweight, making it ideal for heavier packages and letters. It also has a smooth surface that makes it easy to paint and decorate if desired. Finally, plywood is relatively inexpensive and can be found at most home improvement stores or lumber yards.

How can I protect my mailbox from damage?

To protect your mailbox from damage, it is important to regularly inspect and maintain it. Start by inspecting the box for any signs of wear and tear, such as tears or cracks. If necessary, use tape or glue to patch up any weak spots. Additionally, consider using a weatherproof coating or varnish to add an extra layer of protection against moisture and other elements. With proper care, your mailbox should last for years! [3]

Can you put a lock on the mailbox?

Yes, you can put a lock on your mailbox. Start by choosing the appropriate size of padlock for your box, then use screws or nails to attach it to the lid or side of the mailbox. Additionally, consider using a waterproof sealant around the edges of the lock to help protect it from moisture and other elements.

Are mailboxes supposed to be waterproof?

No, mailboxes are not required to be waterproof. However, it is beneficial if your mailbox can handle some exposure to moisture and other elements. Consider using a weatherproof coating or varnish to help protect your box from the elements. Additionally, make sure that all of the tools you use are sharp and in good condition before beginning your project! [4]

Useful Video: Best Out Of Waste – DIY Mailbox


Making a mailbox out of cardboard is fun, easy, and cheap! Plus, it’s a great way to recycle materials that would otherwise end up in the trash. By following these simple steps, you can create your own unique mailbox that will be the envy of your neighborhood.


  1. https://littleredwindow.com/diy-cardboard-mailbox/
  2. https://thriftdiving.com/build-paint-install-custom-diy-mailbox/
  3. https://www.mailboxesandsigns.com/blog/2020/posts/how-to-protect-curbside-mailboxes-getting-struck-by-vehicles-1/
  4. https://homedecorbliss.com/are-mailboxes-waterproof/