The pieces size in the 17.6LB bag is approximately: mostly medium: 70% of medium sized pieces of 2 to 3 inches, 30% 1 1/3 to 2 inches. Which is perfect for most Weber Kettles, Weber Smokey Mountain WSM, Barrel Grills, Gravity feeders etc. This is the perfectcharcoal for anyoccasionthat will producegreat tasting food.