One hundred fifty-three barrows and gilts were used to evaluate flaking of corn, wheat, and sorghum grain for weaned pigs. Flaking increased rate of gain and improved feed efficiency (9 to 10%). Pigs fed corn rations gained significantly faster and were more efficient than pigs fed sorghum grain or\ wheat; and pigs fed sorghum grain gained faster and were more efficient than pigs fed wheat, regardless of processing method.