Carbuncle Garden Bench ★★★

Taken all the way down to base materials, one Carbuncle Garden Bench is 2 crafting steps deep and needs 4 intermediates — Mahogany Lumber ×6, Ruby ×3, Cobalt Ingot ×2 and 1 other — which resolve to 6 distinct raw materials totalling 36 units, plus 58 crystals.

That bill outweighs 11,383 of the 13,602 recipes tracked here and 1,369 of the 1,932 Blacksmith ones, and 4,464 recipes nest deeper.

Only 3 of those crystals go into the final step; the other 55 are burned by the intermediates, so the real crystal cost is 30 Wind Shard, 10 Fire Shard, 6 Fire Crystal and 3 other kinds.

The chain crosses three disciplines — Blacksmith to Lv 50, Goldsmith to Lv 50 and Carpenter to Lv 39 — so no single class can finish it unaided.

5 of the 6 raw materials come out of the ground, and 2 of them are time-gated: Darksteel Ore (1:00) and Raw Ruby (18:00). The widest gap between consecutive opening times is 17 Eorzean hours, about 50 real-world minutes.

Of the intermediates, Cobalt Ingot has the widest use: 145 recipes call for it, spanning seven of the eight crafting classes.