Rainbow Box SVG Free – Create a 3D Template with Cricut
If you love 3D paper crafts, you are going to adore this rainbow box!
This adorable rainbow design is perfect for kids’ birthdays, classroom treats, party favors, baby showers, or even a festive St. Patty’s Day surprise.
Best of all? This is one of my free SVG files. Let’s walk through everything step-by-step.
Materials and Tools
*this blog contains affliate links at no extra charge to you, read my full disclosure here.
- Cardstock – I am using an 80 lb textured. This weight is great for creating a sturdy box.
- Craft glue – my perference for quick drying and hold
- Cricut machine or cutting machine of your choosing
- Standard grip or light grip mats
- Scoring stylus
Finished Rainbow Box Size
As designed, your finished gift box measures approximately:
- 6 inches wide
- 3 inches deep
- Just under 3 inches tall
If you want to slightly increase the size and maximize a 12×12 sheet, you can resize the full design in Cricut Design Space to 25.2 inches wide, which adjusts the longest panel to 11.49 inches.
This rainbow design scales beautifully, but keep in mind if working with Cricut Joy series you will be limited on size due to mat dimensions.
Step 1: Cricut Design Space Setup (Sizing & Score Lines)
Upload the svg file into Cricut Design Space.
Once on your canvas:
- Resize if wanted
- Click Ungroup
- Locate all score lines in the Layers Panel
- Change each from “Basic Cut” to “Score”
- Select each panel with its matching score lines
- Click Attach
Attaching is critical. Without it, your Cricut machine won’t know where to place the score lines correctly.
If you don’t have a scoring stylus or scoring wheel (Cricut Maker users can use either), you can delete the score lines and manually fold along the cut marks later.
This setup ensures your svg cut files cut cleanly and assemble smoothly.
You can adjust any colors before sending.
Step 2: Cutting the Rainbow Box
For best results, use:
- A thicker cardstock
- Medium Cardstock or Heavy Cardstock material setting, depending on your material and blade sharpness
- Standard fine-point blade
Rearrange your pieces on the mat preview screen to maximize paper use and reduce waste.
Your cutting machine will separate mats by color for each rainbow design layer.
Pro Tip: Pull your mat away from the paper, not the paper away from the mat, to prevent curling.
Allow all files to finish cutting before starting assembly.
Step 3: Folding on Score Lines
There are two main curved pieces:
- The lid (larger half-circle, shorter side panels)
- The base (smaller half-circle, thicker side panels)
Fold inward on all score lines for both pieces.
If you accidentally fold the wrong direction, don’t panic, just flip it during assembly.
This step gives your gift box clean structure and helps maintain the smooth rainbow curve.
Step 4: Attaching the Side Panels
Using craft glue, attach the bottom flap of the flat side to the back panel.
Then for the curved top, work in small sections of 3–4 flaps at a time. This helps maintain the smooth arch shape and prevents gaps.
Keep flaps on the inside for a polished finish.
Repeat the same method for the base. The assembly process is identical, just pay attention to which piece is your lid and which is your bottom.
Once all side panels are attached, your box structure is complete.
Step 5: Attaching the Details on Top
Now it’s time for the fun part.
Layer your rainbow in ROYGBIV order:
- Red
- Orange
- Yellow
- Green
- Blue
- Indigo/Violet
Glue each arch onto the lid (top of the box), aligning the flat bottom edges carefully.
Then attach your cloud pieces.
You could even add:
- A name for a birthday
- A St. Patty’s Day message
- Small paper flowers along the arch
- Vinyl personalization
Machine Compatibility
This project works with:
- Cricut Maker
- Cricut Explore series
- Other Cricut machines
- Silhouette Studio (Designer Edition or higher required for SVG support)
- Any cutting machine that accepts SVG files
Joy series machines can create a smaller version but may not accommodate full-size dimensions.
Download the Free Rainbow SVG Files (Design #214)
The free rainbow SVG Box file is available inside my Community Vault.
This design is #214.
To access the free cut files:
- Enter your email address below.
- Wait for the Welcome Letter to arrive with the password then enter the Community Vault
- Download the zip folder.
- Upload the SVG into Cricut Design Space.
These free SVG files are for personal use. I do include a small business commercial use license for handmade physical products. Learn how to download files here.
Do not share the zip folder directly, always send friends to the original post so they can grab their own free file.
I am so excited for you to try out my 3D Rainbos Box SVG free today! Make sure to tag me on socials if you make it and as always, Stay Crafty!
