B and 1/2 here it is a mix. They give you the weigh slip when you buy it. I was surprised also. I usually get breaker rock but it dried up singe coal mines are not as busy. This size truck. I have to do at least a 30'x 12' area 3" deep at least.
Once a year I can get a $500 claim from my work for gravel, will be in May. I receive this benefit because I drive a work truck home so it's "driveway maintenance". 14 yards doesn't do the whole driveway and parking area but it helps.