South Seas Couch ★★

Taken all the way down to base materials, one South Seas Couch is 3 crafting steps deep and needs 3 intermediates — Rosewood Lumber ×3, Vanya Silk ×3 and Silk Thread ×12 — which resolve to 5 distinct raw materials totalling 60 units, plus 41 crystals.

That bill outweighs 13,112 of the 13,602 recipes tracked here and 1,931 of the 1,968 Weaver ones, and 337 recipes nest deeper.

Only 2 of those crystals go into the final step; the other 39 are burned by the intermediates, so the real crystal cost is 18 Lightning Crystal, 18 Wind Shard, 4 Lightning Cluster and 1 other kind.

The chain crosses two disciplines — Weaver to Lv 50 and Carpenter to Lv 45 — so no single class can finish it unaided.

3 of the 5 raw materials come out of the ground, and one of them is time-gated: Silkworm Cocoon (1:00). That window comes round once per Eorzean day, every 70 real-world minutes.

Of the intermediates, Silk Thread has the widest use: 175 recipes call for it, spanning six of the eight crafting classes.