The Lumber order is a quest item that is part of The Grand Tree quest.
It is an order from Glough, who intends to build up a gnome army to wipe out humans. Players obtain it from a foreman in Karamja shipyard.
Players will also need to obtain Glough's invasion plans, and take both pieces of evidence to King Narnode Shareen.
Note: This item is not necessary in advancing in the quest. If you speak to Anita and get the key to get the Attack plans then you don't even need to go to Karamja.
Order for 30 Karamja battleships
Lumber required: 2000
Troop capacity: 300