Is there a renewable source for wood/fibre/stone?

[Jackal]

Lets say I wanted to go ham and decorate every Island out there, Will I eventually run out of basic materials?

[CluelessWonder8]

As far as wood and stone, if you find some in dungeons, those will refresh themselves.
May want to leave a reminder to yourself outside which ones do, so you can find them again when you need it.

As for fiber... I don't know.