For 19 fret tenor banjo this is what I use and recommend:
- E String – 0.11
- A String – 0.18 wound
- D String – 0.26
- G String – 0.34
I use long life coated strings from Elixir and D’Addario. To make this easy for you to find I now have two online stores supplying this as a custom set of strings.
For shipping to Ireland and EU – Moloney Music in Galway
For US/Canada/UK and Rest of the World – Trad Banjo