i work for a construction company driving dump truck. so i got a load of 3inch crushed concrete. it is recycled concrete leftover from jobs. we have a big pile of it and we send it thru the crusher. we sell both 1inch and 3 inch it makes good roads packs in real good. the only sucky part i have to shovel it in a trailer and tow it with my four wheeler i cant get a truck close enough to dump it in the run because its so wet in my yard. i will have to trailer it with the four wheeler. 18yds may take awhile lol.