A fantastic free Cinema 4D wood texture pack, Created by Pattern Panda.
Textures with raw and polished wood surfaces. Each material contains alpha and displacement maps. Please note that you might have to adjust the reflectivity and displacement channels manually considering your individual project settings. To Instal, simply copy the lib4d file(s) into your C4D application folder under /library/browser. After restarting Cinema 4D you can access the materials via the content browser.