I struggled with this for many years, trying to get accurate shipping quotes for furniture and other items that get charged by 'volumetric weight'. I got stuck

I struggled with this for many years, trying to get accurate shipping quotes for furniture and other items that get charged by 'volumetric weight'. I got stuck at the combinatorial explosion of currencies, location 'zones', taxes, product setup data inconsistencies and what happens if not all items can be shipped together. I spoke to a specialist developer that had been in the game longer than myself and she said 'nope, it can't be done that easily in real world situations' and proceeded to go all computer-science on me. If you are in ecommerce you might know of Karen from WebShopApps. If anyone can get you a best solution it is her team.