Rough Stone Flooring

Taken all the way down to base materials, one Rough Stone Flooring is 3 crafting steps deep and needs 4 intermediates — Mortar ×4, Tuff Whetstone ×4, Lignum Vitae Lumber ×2 and 1 other — which resolve to 6 distinct raw materials totalling 44 units, plus 64 crystals.

That bill outweighs 12,337 of the 13,602 recipes tracked here and 1,982 of the 2,216 Goldsmith ones, and 337 recipes nest deeper.

Only 14 of those crystals go into the final step; the other 50 are burned by the intermediates, so the real crystal cost is 49 Wind Crystal, 8 Water Shard and 7 Fire Crystal.

The chain crosses three disciplines — Goldsmith to Lv 80, Carpenter to Lv 78 and Alchemist to Lv 20 — so no single class can finish it unaided.

All 6 raw materials are gathered, and not one of their spots is timed, so nothing in the tree waits on the Eorzean clock.

Of the intermediates, Mortar has the widest use: 140 recipes call for it, spanning six of the eight crafting classes.