I have one unopened box of 2" X 16" X 48" wool batts. I talked to a sales person at Havelock Wool today and was informed that the box should have 100 ft.² of batts in it, which I believe is 19 or 20. One box was enough for me to do the ceiling of my Chevy express van and most of the walls. It was a delightful product to work with, it looks like fiberglass but it's soft and cuddly. The sales person said that the box now retails for $175 and that the tax and shipping cost to this area would be $50. So this is a $50savings.