Unfinished Interior Wall ★

Taken all the way down to base materials, one Unfinished Interior Wall is 3 crafting steps deep and needs 4 intermediates — Astral Birch Lumber ×5, Cut Stone ×4, Birch Lumber ×4 and 1 other — which resolve to 6 distinct raw materials totalling 50 units, plus 55 crystals.

That bill outweighs 12,777 of the 13,602 recipes tracked here and 1,354 of the 1,552 Carpenter ones, and 337 recipes nest deeper.

Only 12 of those crystals go into the final step; the other 43 are burned by the intermediates, so the real crystal cost is 26 Wind Crystal, 12 Wind Shard, 6 Ice Crystal and 4 other kinds.

The chain crosses three disciplines — Carpenter to Lv 60, Alchemist to Lv 60 and Goldsmith to Lv 30 — so no single class can finish it unaided.

4 of the 6 raw materials come out of the ground, and 2 of them are time-gated: Astral Moraine (0:00, 12:00) and Seventh Heaven (4:00, 16:00). The widest gap between consecutive opening times is 8 Eorzean hours, about 23 real-world minutes.

Of the intermediates, Cut Stone has the widest use: 103 recipes call for it, spanning six of the eight crafting classes.