I agree to a point, but my point is that it's still custom code. Mapping a SKU to weight and volume and then putting in weight and volume thresholds for shipping methods. Like I said, it's done by some other small retailers that have more predictable linearity either between weight and volume or quantity and volume. For example if I'm hunt to eat I know I can fit 2, maybe 3 shirts in a flat rate box; but any more than that I have to go to freight pricing, which USPS is on par or even a little more expensive than UPS/FedEx. I am sure some of the e-commerce products out there do support it out of the box, but if Kifaru's that's all that matters as switching to a different e-commerce tool would be even more costly. I agree that it's not that all that complicated to automate, but custom software is expensive. All the shipping providers have public APIs that you can query an address with an estimated package size and weight and get cost, but again more custom code. I just don't think it's worth it to them to spend the money for the few small orders they may be losing over $6 in possible saving by providing a cheaper shipping method.