Riviera House Roof (Wood)

Taken all the way down to base materials, one Riviera House Roof (Wood) is 3 crafting steps deep and needs 5 intermediates — Roof Tile ×30, Steel Joint Plate ×10, Steel Nails ×10 and 2 others — which resolve to 5 distinct raw materials totalling 165 units, plus 177 crystals.

That bill outweighs 13,537 of the 13,602 recipes tracked here and 1,582 of the 1,591 Alchemist ones, and 337 recipes nest deeper.

Only 32 of those crystals go into the final step; the other 145 are burned by the intermediates, so the real crystal cost is 70 Fire Shard, 46 Water Shard, 30 Ice Shard and 2 other kinds.

The chain crosses four disciplines — Alchemist to Lv 36, Carpenter to Lv 32, Armorer to Lv 27 and Blacksmith to Lv 27 — so no single class can finish it unaided.

All 5 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, Steel Ingot has the widest use: 125 recipes call for it, spanning seven of the eight crafting classes.