We need an ecommerce webpage. Our number 1 priority is that the webpage system could automatically calculate the shipping cost for the customer. The important factors for this are: the piece with the biggest dimensions that the customer wants will determine the size of the box where it will ship, the combined weight of the pieces has to be under a limit, and the system should know if any additional pieces that he orders can fit inside the box. In other words, this is like a system that does combined shipping when the customer buys multiple products. Please send a message back for more specific details.