Shipping posters – Royal Mail plugin

I’m looking at WooCommerce, and the options for shipping. I’ve a friend has demonstrated the Royal Mail premium plugin, which is certainly impressive when it comes to shipping most items.

However, is it suitable for shipping posters? Or, would people recommend I resort to something else?

I can see the need for smart calculations/genetic packing algorithyms if, and when, we move on to shipping framed works; however, it would seem as-if what I’ve seen doesn’t allow the Royal Mail (premium) plugin to understand that I can stick a dozen posters all in a single tube.

Am I missing something really obvious here?

https://www.ads-software.com/plugins/woocommerce/