Boxify

WARNING - When your free trial ends, it will not automatically bill you or start on the basic plan. What does that mean? If you utilize this app as your only calculated shipping method, your customers will not be able to checkout! Fortunately a customer brought this to our attention, minimizing the loss of our ad spend and visitor exits. Nonetheless, the ad spend that we had during this time cost us more than the app does for the year. Hopefully the developer will change that. Most apps we've installed require you to agree to a specific plan that will begin billing once your plan expires without having you to re-enter the app and choose a plan.

Otherwise, this app is an excellent tool and I highly recommend it. It's actually unbelievable that Shopify doesn't already have dimensions as an option for shipping. Just another monthly expense for using Shopify's platform..