Riviera House Roof (Composite)

Taken all the way down to base materials, one Riviera House Roof (Composite) is 3 crafting steps deep and needs 5 intermediates — Steel Joint Plate ×10, Steel Nails ×10, Walnut Lumber ×10 and 2 others — which resolve to 4 distinct raw materials totalling 120 units, plus 168 crystals.

That bill outweighs 13,498 of the 13,602 recipes tracked here and 1,518 of the 1,552 Carpenter ones, and 337 recipes nest deeper.

Only 28 of those crystals go into the final step; the other 140 are burned by the intermediates, so the real crystal cost is 70 Fire Shard, 56 Wind Shard and 42 Ice Shard.

The chain crosses three disciplines — Carpenter to Lv 35, Armorer to Lv 27 and Blacksmith to Lv 27 — so no single class can finish it unaided.

All 4 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, Walnut Lumber has the widest use: 128 recipes call for it, spanning eight of the eight crafting classes.