Thats exactly what i buy for the shreaded. ill buy like 10 bags and the people look at me like im crazy. and its relatively cheap compared to the zoomed from petstores. but i buy the big bags of shaved aspen from tractor supply. i believe its 9 cubic yard of compacted aspen so it comes out to alot more. but i mix the two together. and i also use the shaved for the rats.