Wooden Staircase Bookshelf

Taken all the way down to base materials, one Wooden Staircase Bookshelf is 2 crafting steps deep and needs 2 intermediates — Lignum Vitae Lumber ×7 and Stonegold Ingot ×5 — which resolve to 4 distinct raw materials totalling 54 units, plus 93 crystals.

That bill outweighs 12,945 of the 13,602 recipes tracked here and 1,376 of the 1,552 Carpenter ones, and 4,464 recipes nest deeper.

Only 14 of those crystals go into the final step; the other 79 are burned by the intermediates, so the real crystal cost is 86 Wind Crystal and 7 Ice Crystal.

The chain crosses two disciplines — Carpenter to Lv 80 and Goldsmith to Lv 72 — so no single class can finish it unaided.

3 of the 4 raw materials come out of the ground, and one of them is time-gated: Gold Ore (9:00). That window comes round once per Eorzean day, every 70 real-world minutes.

Of the intermediates, Lignum Vitae Lumber has the widest use: 134 recipes call for it, spanning seven of the eight crafting classes.