In Gregg’s opinion and personal experience, size 8 seems to be the most used average knitting needle size. “Yarn weights have funny names starting with lace (the lightest), sock, fingering, sport, DK, worsted, aran and bulky," she explains. "DK or worsted weight match best with size 8 needles and would be the best place to start.” Other projects for beginners require medium needles ranging from size 4-10 for easy handling.