Try 5 giant vacuum bags. That's what I had, plus many others in bins! That's what I just unpacked, after moving here 6yrs ago.
Now have it sorted on racks I put together and in a huge closet. Still have to reinstall the long rack higher than the yarn stacks for the many kits I've purchased on sale or just liked over the yrs.
This yarn, needle, accessories, projects, pattern sort and file that have been put aside ha been an adventure and extremely time- consuming!! My DD has threatened to have a bonfire after I'm gone. Just told her think about the $!,000's of dollars going up in smoke!!!
Now she's trying to convince me to sell some of it (notice she does not mention swapping). Told her if she touched my yarn before I'm gone she's a dead duck.
And so it goes--LOL
Karen