I saw a post, from oct 2011 suggesting a lumbermill, and didn't see it on the compendium as a refused Idea.
Thinking of it, it might be nice. The idea behind a macerator is to enhance your mining output, why not do the same to wood. Since it is a valuable resource and get your chainsaw and spend 1-2 hours cutting trees isn't something to say: "How exciting!".
It could be done just by making a craft recipe with your chainsaw + any log in the crafting grid, giving you 6 planks, instead of 4, or by adding a new machine, the Lumbermill. A 50% gain I think it's ballanced.
Also the process could generate a subproduct: Wood dust (kinda) that could have a higher chance to generate scrap on recyclers. Be used as fuel in furnaces or generators at the same rate as sapplings.
Also, placing planks again in the lumbermill could give you more sticks, instead of 4 per plank, could get another 50% gain, 6 sticks per plank.
Or even, use the wood dust on a compressor could give you wood boards that combined in a shaped recipe 8 + slime ball could give you a fire proof wood.
What you guys think?