Hi

Thanks for your reply.

I have installed the module and it works just fine. My problem is with applying it to different items.

For example, I have a lot of items that weigh 100g and their dimensions make them a large letter. These are fine, as the option for 1st and 2nd class large letter appear at checkout along with the option for small packet. Obviously the customer will choose the large letter 2nd class option on most occasions.

However, I also have a lot of items that weigh 100g but their dimensions make them small packet. I am unable to find a way of telling zencart that I don't want the large letter shipping options to apply to these items and that I only want small packet options to apply. It seems to only work out shipping based on weight and not the items physical size. Which means customers could still pick the large letter option at checkout, but it would actually cost me considerably more to post than quoted.

Hope this makes sense and any help would be much appreciated.

Arkie...