Rod

A true dwarf doesn't have any truck with trees, or wood, or anything like that, since a true dwarf most certainly isn't a dirty elf. However, STICKS are made from wood, and they're required for many of the tools that a dwarf would need to go about his dwarfly business. But, being a dwarf, and therefore, clever and inventive, it's easy to come up with a solution to such a problem. RODS. Which, I would like to point out, are not sticks, and are, in fact, FAR superior to sticks in every way. Rods are crafted much like sticks are, except instead of two vertically stacked wooden planks, a dwarf will use two vertically stacked cobblestone, iron or gold ingots, or diamonds, creating stone, iron, gold, or diamond rods. Unlike sticks, only two stone rods are created in this fashion, not four. However, iron, gold, and diamond rods will be crafted in lots of four, as are sticks.

Rods are required to craft tools, reinforced tools, stone and iron lamps, and stone ladders. The creator(s) have plans to increase the use of rods in order to completely remove any trace of the possibility that a dwarf might think he maybe needs wood, which will certainly create more uses for the rods that are not yet in existence.