Riviera Mansion Roof (Wood) ★

Taken all the way down to base materials, one Riviera Mansion Roof (Wood) is 3 crafting steps deep and needs 7 intermediates — Roof Tile ×45, Cobalt Joint Plate ×10, Cobalt Nails ×10 and 4 others — which resolve to 9 distinct raw materials totalling 260 units, plus 350 crystals.

That bill outweighs 13,584 of the 13,602 recipes tracked here and 1,588 of the 1,591 Alchemist ones, and 337 recipes nest deeper.

Only 20 of those crystals go into the final step; the other 330 are burned by the intermediates, so the real crystal cost is 150 Fire Shard, 65 Water Shard, 50 Ice Shard and 4 other kinds.

The chain crosses five disciplines — Alchemist to Lv 50, Carpenter to Lv 50, Armorer to Lv 44, Blacksmith to Lv 44 and Weaver to Lv 42 — so no single class can finish it unaided.

8 of the 9 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.