Oasis House Roof (Wood)

Taken all the way down to base materials, one Oasis House Roof (Wood) is 3 crafting steps deep and needs 5 intermediates — Oak Lumber ×15, Steel Joint Plate ×10, Steel Nails ×10 and 2 others — which resolve to 4 distinct raw materials totalling 120 units, plus 191 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 36 of those crystals go into the final step; the other 155 are burned by the intermediates, so the real crystal cost is 75 Wind Shard, 70 Fire Shard and 46 Ice Shard.

The chain crosses four disciplines — Carpenter to Lv 39, Armorer to Lv 27, Blacksmith to Lv 27 and Goldsmith to Lv 23 — 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, Silver Ingot has the widest use: 157 recipes call for it, spanning eight of the eight crafting classes.