Oasis Mansion Roof (Composite) ★

Taken all the way down to base materials, one Oasis Mansion Roof (Composite) is 3 crafting steps deep and needs 6 intermediates — Mortar ×30, Roof Tile ×30, Clinker Bricks ×10 and 3 others — which resolve to 10 distinct raw materials totalling 320 units, plus 235 crystals.

That bill outweighs 13,596 of the 13,602 recipes tracked here and 2,213 of the 2,216 Goldsmith ones, and 337 recipes nest deeper.

Only 20 of those crystals go into the final step; the other 215 are burned by the intermediates, so the real crystal cost is 140 Water Shard, 75 Wind Shard, 12 Wind Crystal and 1 other kind.

The chain crosses three disciplines — Goldsmith to Lv 50, Alchemist to Lv 39 and Carpenter to Lv 39 — so no single class can finish it unaided.

All 10 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, Electrum Ingot has the widest use: 234 recipes call for it, spanning seven of the eight crafting classes.