In this game, the terms 'Timber' and 'Lumber' have been accidentally reversed.
Raw wood and other forest products in an unfinished form. Lumber is refined into Timber for use in the manufacture of more complex items.
Lumber is a Planetary Resource that can be extracted from a Lumber Mill, if it is listed on the Planet's Geological Survey (GEO), or converted from Raw Resources on any Planet using a Stripmining Complex.
1 ton
Already learned - your empire starts with this technology.
Content contributed by Raven Zachary.