Oasis Crowned Door

Taken all the way down to base materials, one Oasis Crowned Door is 3 crafting steps deep and needs 3 intermediates — Steel Hinge ×4, Walnut Lumber ×4 and Steel Ingot ×8 — which resolve to 3 distinct raw materials totalling 36 units, plus 37 crystals.

That bill outweighs 11,383 of the 13,602 recipes tracked here and 1,184 of the 1,552 Carpenter ones, and 337 recipes nest deeper.

Only 5 of those crystals go into the final step; the other 32 are burned by the intermediates, so the real crystal cost is 16 Fire Shard, 11 Wind Shard and 10 Ice Shard.

The chain crosses three disciplines — Carpenter to Lv 27, Armorer to Lv 26 and Blacksmith to Lv 26 — so no single class can finish it unaided.

All 3 raw materials are gathered, and not one of their spots is timed, so nothing in the tree waits on the Eorzean clock.

Of the intermediates, Walnut Lumber has the widest use: 128 recipes call for it, spanning eight of the eight crafting classes.