Oasis Mansion Roof (Wood) ★

Taken all the way down to base materials, one Oasis Mansion Roof (Wood) is 3 crafting steps deep and needs 7 intermediates — Rosewood Lumber ×15, Cobalt Joint Plate ×10, Cobalt Nails ×10 and 4 others — which resolve to 7 distinct raw materials totalling 175 units, plus 415 crystals.

That bill outweighs 13,549 of the 13,602 recipes tracked here and 1,541 of the 1,552 Carpenter ones, and 337 recipes nest deeper.

Only 20 of those crystals go into the final step; the other 395 are burned by the intermediates, so the real crystal cost is 150 Fire Shard, 115 Wind Shard, 80 Water Shard and 3 other kinds.

The chain crosses five disciplines — Carpenter to Lv 50, Armorer to Lv 44, Blacksmith to Lv 44, Goldsmith to Lv 42 and Alchemist to Lv 41 — so no single class can finish it unaided.

6 of the 7 raw materials match a gathering node, none of them timed; the other 1 comes from vendors, drops or content this site does not track.

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