Hingan Cottage Roof (Mokuzo)

Taken all the way down to base materials, one Hingan Cottage Roof (Mokuzo) is 3 crafting steps deep and needs 8 intermediates — High Steel Nugget ×10, Iron Joint Plate ×10, Mortar ×10 and 5 others — which resolve to 8 distinct raw materials totalling 175 units, plus 135 crystals.

That bill outweighs 13,549 of the 13,602 recipes tracked here and 1,928 of the 1,932 Blacksmith ones, and 337 recipes nest deeper.

Only 20 of those crystals go into the final step; the other 115 are burned by the intermediates, so the real crystal cost is 72 Fire Crystal, 20 Water Shard, 15 Wind Crystal and 3 other kinds.

The chain crosses four disciplines — Blacksmith to Lv 61, Carpenter to Lv 51, Alchemist to Lv 20 and Armorer to Lv 15 — so no single class can finish it unaided.

All 8 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.