Setting Up Per Unit, Per Volume or Per Weight Unit Carrier Rules

Overview

If you want to set or modify shipping rates based on quantity, volume or weight you can use the “Per Unit” actions on Carrier Rules. For example, you may want to add a charge of $2 for every 1 item in the cart or perhaps you want to set the shipping rate to $5 for every 10lb in the cart.

These settings can be used in conjunction with the Set/Modify Shipping Rate options enabled by default on your carrier rules. Setting values in the Set/Modify Shipping Rate section will give you a base cost on top of which your Per Unit, Per Volume or Per Weight Unit charges will be added. The Set/Modify Shipping Rate section can also be left empty if you don’t wish to set a base cost.

 

Enabling Per Unit, Per Volume or Per Weight Unit Actions

Both of these options are available by clicking the “Settings” button on your Carrier Rules page under the Apply Actions tab. Once enabled, these options will be shown in the Actions panel when editing or adding a new Carrier Rule.

Per Unit/Quantity

Using the three quantity-related fields under the Per Unit Shipping Price Modifications heading you can set the amount (in your currency) to charge for each Unit of Quantity starting at the Start Quantity. For example, entering $5 in the Per Quantity Price field, 2 in the Unit of Quantity field, and 5 in the Start Quantity field will add $5 for every 2 items over 5 in the cart. In this scenario, a cart containing 10 items will result in a shipping charge of $15 (⌈((10-5)/2)⌉*$5 = $15). Note that this rounds up.

Per Unit Volume (Magento Only)

Using the three volume-related fields under the Per Unit Shipping Price Modifications heading you can set the amount (in your currency) to charge for each unit of volume starting at the Start Quantity. For example, entering $5 in the Per Volume Price field, 200 in the Unit of Volume field, and 500 in the Start Volume field will add $5 for every 200 volume increment over 500 in the cart. In this scenario, a cart containing a combined total volume of 1000 will result in a shipping charge of $15 (⌈((1000-500)/200)⌉*$5 = $15). Note that this rounds up.

Per Weight Unit

Using the three weight-related fields under the Per Unit Shipping Price Modifications heading you can set the amount (in your currency) to charge for each Unit of Weight (in your account’s unit of weight) starting at the Start Weight. For example, entering $5 in the Per Weight Price field, 2 in the Unit of Weight field, and 5 in the Start Weight field will add $5 for every 2lb over 5lb. In this scenario, a cart containing items totalling 10lb will result in a shipping charge of $15 (⌈((10-5)/2)⌉*$5 = $15). Note that this rounds up.