The WooCommerce Flat Rate Box Shipping extension is a plugin that can be used with the WooCommerce e-commerce platform to create flat rate shipping rules for boxes.

This extension allows store owners to pack items into boxes with pre-defined costs per destination.

The WooCommerce Flat Rate Box Shipping plugin works by reviewing the destination of the items in the customer’s basket, matching it to a shipping zone, and then using the rates in that zone to calculate the shipping cost.

Each destination and rate can have its own box sizes, and multiple sets of box sizes can be defined based on shipping requirements.

The box packing feature included with this shipping method allows store owners to group items into packages for which they can define height, width, length, weight, and max-weight.

Packing is mainly volume-based but also considers item sizes.

The box packer is volume-based and provides good results but may not be as accurate as a real person packing a box.

Therefore, it is important to understand that packing results are as accurate as possible, and any anomalies should be accepted.

This extension also offers advanced shipping rates using box packing, allowing store owners to define costs for boxes to different destinations.

Store owners can add multiple box sizes per shipping zone, add costs per box, per weight unit, and a percentage of the item costs inside.

They can also define a cost for unpackable items such as items that are too large to fit in a box.

To use the WooCommerce Flat Rate Box Shipping extension, store owners need to create their Shipping Zones and box size rates.

The plugin does all the calculations, including packing items into boxes, to calculate the shipping cost.

In summary, the WooCommerce Flat Rate Box Shipping extension is a useful tool for store owners who want to offer flat-rate shipping for boxes of various sizes and weights.

It streamlines the shipping process and can provide a more seamless checkout experience for customers.