A copy of "Advanced Craftsman Volume 10" will give you the recipes for bone lumber as well as bone stave and planed bone.
To make these things you will need one or more severed bone for raw material. I have been making bone furnishings and also bone weapons - and the weapons, especially the bone long bows come out very nice. You can find the recipes for these weapons in Advanced Craftsman 14 & 16.
All of these should be purchasable through the broker for under a half a gold each. Think I paid about 20 silver for mine.
Edited, Thu Apr 14 19:36:18 2005 by OldBlueDragon