Some of the bags were recycle Budjet Feed bag (50 lb variety). The others were 100 lb sacks from Mill and Feed. We used a plastic bucket that held about 18.5 lbs. The farmer says a 5 gallon bucket hold 31 lbs. I think it was about a 3 gallon bucket. Anyhow we put 3 buckets full in the 50lb bags and 5 in the 100lb bags. We ended up with 12 50lb bags and 14 100 lb bags. Is all that clear as mud? We tied the tops with twine, using a miller's knot. Ask Mike at BF to show you how next time you're there if you don't know how they work.