The boxes will be put together the best we can. If one is a few pounds heavier than the other, we wouldn't charge them again for shipping. If it's fairly accurate, that's more than suitable.

As for smaller boxes, if the order is small enough we'll use small boxes. If it's over 70 pounds, we'll always use the medium boxes. We just want around 50lbs or higher if it's way over 70 lbs or half of the weight in each box for say 80lbs.

Thanks again for all your help!