To level up your furnishing skill in New World, you need to make furniture by gathering primary Timber, Iron Ingots, and Ash Stain. Overall, this is the extent of what you need to do for this skill, and so you will need to learn how to get the three main resources you need.
Luckily it's pretty straightforward getting all three. Here's where you can find all resources in New World below, starting with timber.
Related: New World Weaving Leveling Guide
Once you gather the required materials, you can then use them to farm levels in furnishing by crafting furniture in the game. Keep farming these materials and making furniture if you want to level your furnishing skill quickly as possible.
For more on New World, Pro Game Guides has you covered with a massive and ever-expanding catalog of guides.
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