Highland House Wall (Composite)

Taken all the way down to base materials, one Highland House Wall (Composite) is 3 crafting steps deep and needs 6 intermediates — Clear Glass Lens ×10, Dark Chestnut Lumber ×10, Firebricks ×10 and 3 others — which resolve to 10 distinct raw materials totalling 225 units, plus 196 crystals.

That bill outweighs 13,575 of the 13,602 recipes tracked here and 1,587 of the 1,591 Alchemist ones, and 337 recipes nest deeper.

Only 36 of those crystals go into the final step; the other 160 are burned by the intermediates, so the real crystal cost is 60 Fire Crystal, 60 Water Shard, 40 Wind Crystal and 2 other kinds.

The chain crosses three disciplines — Alchemist to Lv 60, Carpenter to Lv 54 and Blacksmith to Lv 52 — 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, Mythrite Nugget has the widest use: 102 recipes call for it, spanning seven of the eight crafting classes.