Hingan Cottage Roof (Kura-zukuri)

Taken all the way down to base materials, one Hingan Cottage Roof (Kura-zukuri) is 3 crafting steps deep and needs 9 intermediates — High Steel Nugget ×10, Iron Joint Plate ×10, Mortar ×10 and 6 others — which resolve to 8 distinct raw materials totalling 200 units, plus 180 crystals.

That bill outweighs 13,560 of the 13,602 recipes tracked here and 1,432 of the 1,441 Armorer ones, and 337 recipes nest deeper.

Only 20 of those crystals go into the final step; the other 160 are burned by the intermediates, so the real crystal cost is 60 Fire Crystal, 50 Fire Shard, 30 Ice Shard and 3 other kinds.

The chain crosses three disciplines — Armorer to Lv 61, Blacksmith to Lv 61 and Alchemist to Lv 20 — so no single class can finish it unaided.

All 8 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, Mortar has the widest use: 140 recipes call for it, spanning six of the eight crafting classes.