Herringbone Interior Wall

Taken all the way down to base materials, one Herringbone Interior Wall is 3 crafting steps deep and needs 5 intermediates — Claro Walnut Lumber ×5, Dark Mahogany Lumber ×5, Ginseng Lumber ×5 and 2 others — which resolve to 6 distinct raw materials totalling 91 units, plus 144 crystals.

That bill outweighs 13,450 of the 13,602 recipes tracked here and 1,502 of the 1,552 Carpenter ones, and 337 recipes nest deeper.

Only 16 of those crystals go into the final step; the other 128 are burned by the intermediates, so the real crystal cost is 128 Wind Crystal, 8 Ice Crystal and 8 Water Shard.

The chain crosses two disciplines — Carpenter to Lv 100 and Alchemist to Lv 20 — so no single class can finish it unaided.

All 6 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.