Oasis Open-shelf Bookcase ★

Taken all the way down to base materials, one Oasis Open-shelf Bookcase is 3 crafting steps deep and needs 4 intermediates — Spruce Lumber ×7, Rosewood Lumber ×4, Varnish ×3 and 1 other — which resolve to 5 distinct raw materials totalling 48 units, plus 74 crystals.

That bill outweighs 12,691 of the 13,602 recipes tracked here and 1,342 of the 1,552 Carpenter ones, and 337 recipes nest deeper.

Only 5 of those crystals go into the final step; the other 69 are burned by the intermediates, so the real crystal cost is 24 Water Shard, 24 Wind Crystal, 24 Wind Shard and 1 other kind.

The chain crosses two disciplines — Carpenter to Lv 50 and Alchemist to Lv 41 — so no single class can finish it unaided.

4 of the 5 raw materials come out of the ground, and one of them is time-gated: Spruce Log (9:00). That window comes round once per Eorzean day, every 70 real-world minutes.

Oasis Open-shelf Bookcase is itself consumed by 1 further recipe, all of them Leatherworker recipes.