| Name | Type | WPI | Yards / lb |
| #1 Super Fine | Fingering, Lace, Sock | 18+ | 2600 + |
| #2 Fine | Sport, Baby | 16 | 1900 - 2400 |
| #3 Light | Lt. Worsted, DK | 14 | 1200 - 1800 |
| #4 Medium | Worsted, Afghan, Aran | 12 | 900 - 1200 |
| #5 Bulky | Chunky, Craft, Rug | 10 | 600 - 800 |
| #6 Super Bulky | Bulky, Roving | 8 or less | 400 - 500 |