For some Zen Carts, the Per Item shipping module makes the most sense.  A unit is simply a single item making it very simple.

The Per Item shipping module is another one of those keep it simple (KISS) modules.  It is not right for all stores but if it fits your needs, is very simple.  Simple to use and, more importantly, simple to explain to your shoppers. One of the most reasons for shopping cart abandonment is high or unexpected shipping costs.  Using a simple shipping modules avoids any surprises during check-out and should help you convert more shoppers into customers.

In the details of this module  is one more layer of control. It allows for both a shipping cost, as mentioned above, and a handling fee.  While they may sound similar, there is a key difference. The shipping cost is applied ‘per item’ while the handling fee is applied ‘per order’.

Here’s an example.  If the shipping cost is $2.50 and the handling fee is $5, an order for one item order would cost $7.50 to ship.  Under the same conditions, an order for 2 items would cost $10 (2 items times $2.50 plus $5).  This allows for the shipping cost to address the variable cost of shipping while the handling fee addresses the fixed costs such as packaging material and time.

Please see our module installation offer if you need the Zen Cart Per Unit Shipping Module installed and configured for your store.