Protean plank

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Key token.png
Protean plank is a Treasure Hunter reward.
If the associated promotion is not currently active, it may not be obtainable.
Protean plank detail.png

Protean planks can be won on Treasure Hunter. They are stackable planks that are usable in place of any other type of plank in the Construction skill.

If protean planks and other plank types (including any planks in a plank box) are in the inventory, the other plank types are used before the protean planks.

They cannot be used:

They can be used to construct frames for grapevine seeds.

Protean logs can be turned into protean planks at any sawmill at the cost of 5 coins for each plank.

The most cost-effective use of protean planks is to treat them as stackable mahogany planks, and make items such as mahogany tables, flotsam prawnbrokers or mahogany armchair flatpacks.

Protean planks, as with all protean items, can be converted at a 3:2 ratio into other protean items.

Plank Experience
Oak plank.png Oak 60
Teak plank.png Teak 90
Mahogany plank.png Mahogany 140

Drop sources[edit | edit source]

This list was created dynamically. For help, see the FAQ.
To force an update of this list, click here.
For an exhaustive list of all known sources for this item, see here (include RDT).

Trivia[edit | edit source]

  • Previously, if making flatpacks, production did not stop when the player's inventory was filled. Excess flatpacks were dropped. This was changed in an update on 26 November 2014.
  • Prior to 3 May 2016, protean planks could be produced on portable sawmills.

Update history[edit | edit source]

The update history project is a work-in-progress – not all updates to this topic may be covered below. See here for how to help out!
  • patch 10 August 2020 (Update):
    • Constructing flatpacks with protean planks will now correctly consider how much Inventory space is left.
  • patch 29 May 2018 (Update):
    • Protean planks are now consistently used as crafting materials when using a clockmaker's bench (crafting table) inside a player-owned house.
  • patch 24 August 2015 (Update):
    • Protean planks no longer make and drop an extra flatpack when your inventory is full.
  • patch 15 June 2015 (Update):
    • Protean planks no longer make and drop an extra flatpack when the player's inventory is full.
  • patch 5 January 2015 (Update):
    • Protean planks may now be used to build grapevine frames.