Worsted yarn? Questions › Category: Atlanticus CAL › Worsted yarn? 0 Vote Up Vote Down Deb Austin asked 3 months ago Hi! I’m looking forward to starting this CAL but I only use worsted weight yarns. Will an H hook work or can you recommend the best hook based on testing? Deb Email * Name * Sign me up for the newsletter! 1 Answers 0 Vote Up Vote Down Admin Staff answered 3 months ago 5mm / Size H will work for the worsted yarn yes. Email * Name * Sign me up for the newsletter!