The price is based on the US Hay and Straw pricing survey listed below and the average weight of different sizes of bales.
Straw is the dry stalks of grain plant like wheat, barley and oats. It has a low nutritional value, but is commonly used in animal bedding, and as ground cover for planting seed (e.g. grass seed).
There are four common sizes of bales:
The most current US Hay and Straw Price Survey information data is as follows:
Hay and Straw Calculators