How can I set up a shipping profile for multiple plushie orders?

Hello! I sell these cute little plushies. Each plushie comes in a special gift box. Unfortunately the box makes the shipping a little bulky. So if a customer orders more than one plushie, the shipping starts to get a bit pricey on my end. I want to set up a shipping profile that will allow me to charge more if a customer buys multiple plushies. For example, if a customer orders 1 plushie, it’s only about $6-$8 depending on their location. But if a customer orders 3 plushies, the cost goes up to $17, as I use a usps flat rate box for multiple plushies.

How do I go about setting up a shipping profile for this?

Greetings @Bellinghamster ,

Achieving a shipping rate using Shopify’s Flat Rate Shipping based on quantity is not feasible.

However, you can opt for a weight-based approach.

For instance:
0-2KG: $10
2-4KG: $20

To implement this, assign a weight of 2KG to each product. Consequently, when a customer purchases two products, the shipping cost will display as $20.

Thank you so much for this! I just tested this out and got it to do exactly what I needed!

Thank you again!