Faerie Door

Taken all the way down to base materials, one Faerie Door is 2 crafting steps deep and needs 2 intermediates — Miracle Apple Lumber ×4 and Red Pine Lumber ×4 — which resolve to 3 distinct raw materials totalling 38 units, plus 72 crystals.

That bill outweighs 11,698 of the 13,602 recipes tracked here and 1,218 of the 1,552 Carpenter ones, and 4,464 recipes nest deeper.

Only 16 of those crystals go into the final step; the other 56 are burned by the intermediates, so the real crystal cost is 64 Wind Crystal and 8 Ice Crystal.

Every step is Carpenter work, from a Lv 72 intermediate up to the Lv 90 finish, so one class covers the whole chain.

All 3 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, Red Pine Lumber has the widest use: 62 recipes call for it, spanning seven of the eight crafting classes.