Hingan House Roof (Mokuzo)

Taken all the way down to base materials, one Hingan House Roof (Mokuzo) is 3 crafting steps deep and needs 8 intermediates — Mortar ×15, Steel Joint Plate ×15, Dark Chestnut Lumber ×10 and 5 others — which resolve to 9 distinct raw materials totalling 275 units, plus 293 crystals.

That bill outweighs 13,586 of the 13,602 recipes tracked here and 1,929 of the 1,932 Blacksmith ones, and 337 recipes nest deeper.

Only 28 of those crystals go into the final step; the other 265 are burned by the intermediates, so the real crystal cost is 136 Fire Crystal, 45 Ice Shard, 40 Wind Crystal and 3 other kinds.

The chain crosses four disciplines — Blacksmith to Lv 64, Carpenter to Lv 54, Armorer to Lv 27 and Alchemist to Lv 20 — so no single class can finish it unaided.

All 9 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, Mortar has the widest use: 140 recipes call for it, spanning six of the eight crafting classes.