This website was built with Magento Community Edition and has many custom coded elements especially during the checkout process. The products offered tiered pricing that offers a different amount of discount per customer group. They ship many hazardous liquids so many special shipping rules apply and it can also calculate on a product by product basis how many of any given product can fit inside a box so that it can calculate how many boxes and what size boxes are needed for the shipment of a total order. The orders all link through ebridge into their ERP system (Sage) so that it keeps all orders and customers up to date and synchronized.