Hingan Mansion Roof (Nanpu)

Taken all the way down to base materials, one Hingan Mansion Roof (Nanpu) is 3 crafting steps deep and needs 7 intermediates — Cobalt Joint Plate ×20, Mortar ×20, Aurum Regis Nugget ×15 and 4 others — which resolve to 9 distinct raw materials totalling 355 units, plus 480 crystals.

That bill outweighs 13,599 of the 13,602 recipes tracked here and 2,215 of the 2,216 Goldsmith ones, and 337 recipes nest deeper.

Only 40 of those crystals go into the final step; the other 440 are burned by the intermediates, so the real crystal cost is 170 Wind Crystal, 100 Fire Shard, 100 Ice Shard and 2 other kinds.

The chain crosses five disciplines — Goldsmith to Lv 68, Blacksmith to Lv 68, Carpenter to Lv 58, Armorer to Lv 44 and Alchemist to Lv 20 — so no single class can finish it unaided.

All 9 raw materials are gathered, and one of them is time-gated: Gold Ore (9:00). That window comes round once per Eorzean day, every 70 real-world minutes.

Of the intermediates, Aurum Regis Nugget has the widest use: 185 recipes call for it, spanning seven of the eight crafting classes.