Shipping Based on Box Sizes

Hello!

I'm looking for a plugin that will set the price of shipping based on set box sizes. For example, I could have a 5kg, 10kg and a 30kg box available, and the system works out which box is suitable based on the customer's choices from the item mass(es). That's how the pricing would be worked out, it doesn't have to actually say to the customer "We'll send you a 10kg box."

Is there a plugin to do this?

If not, is there a plugin that will let the customer know whenever they are reaching their weight limit, and will have to pay double for another box?

Any help is appreciated.

I have a Weight & Volume-Based Shipping extension that can create charges based on weight and physical volume, so you could probably get a setup like you're looking for.

If you need other criteria, like total or quantity, you could instead look at Formula-Based Shipping, which can do all of those criteria at once. Feel free to take a look at the screenshots and demo site, and if you're interested let me know at www.getclearthinking.com/contact if you have any further questions.