Riviera Mansion Wall (Wood) ★

Taken all the way down to base materials, one Riviera Mansion Wall (Wood) is 3 crafting steps deep and needs 7 intermediates — Cobalt Joint Plate ×10, Cobalt Nails ×10, Spruce Lumber ×10 and 4 others — which resolve to 7 distinct raw materials totalling 155 units, plus 345 crystals.

That bill outweighs 13,535 of the 13,602 recipes tracked here and 1,535 of the 1,552 Carpenter ones, and 337 recipes nest deeper.

Only 20 of those crystals go into the final step; the other 325 are burned by the intermediates, so the real crystal cost is 150 Fire Shard, 80 Water Shard, 50 Ice Shard and 3 other kinds.

The chain crosses five disciplines — Carpenter to Lv 50, Armorer to Lv 44, Blacksmith to Lv 44, Alchemist to Lv 41 and Goldsmith to Lv 30 — so no single class can finish it unaided.

6 of the 7 raw materials come out of the ground, and one of them is time-gated: Spruce Log (9:00). That window comes round once per Eorzean day, every 70 real-world minutes.

Of the intermediates, Cobalt Ingot has the widest use: 145 recipes call for it, spanning seven of the eight crafting classes.