Why are there different sized shavings bags?
The bagging machines are designed to bag one size. They bring about a compression ratio of somewhere between 2:1 to 3:1, depending on the condition and age of the machine. This means, for example, that a bag with 3.25 cubic feet compressed started with between 8 and 10 cubic feet uncompressed. Similarly, a 2.8 cubic foot bag starts with between 6.5 and 7.5 cubic feet, and so on.