House Fortemps Fireplace

Taken all the way down to base materials, one House Fortemps Fireplace is 3 crafting steps deep and needs 5 intermediates — Chondrite Ingot ×8, Cut Stone ×4, Mythrite Ingot ×4 and 2 others — which resolve to 7 distinct raw materials totalling 109 units, plus 166 crystals.

That bill outweighs 13,492 of the 13,602 recipes tracked here and 1,924 of the 1,932 Blacksmith ones, and 337 recipes nest deeper.

Only 64 of those crystals go into the final step; the other 102 are burned by the intermediates, so the real crystal cost is 120 Fire Crystal, 32 Earth Crystal, 13 Wind Shard and 1 other kind.

The chain crosses three disciplines — Blacksmith to Lv 90, Goldsmith to Lv 30 and Carpenter to Lv 12 — so no single class can finish it unaided.

All 7 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, Chondrite Ingot has the widest use: 210 recipes call for it, spanning seven of the eight crafting classes.