Spotted Interior Wall

Taken all the way down to base materials, one Spotted Interior Wall is 3 crafting steps deep and needs 4 intermediates — Mortar ×3, Undyed Linen ×3, Linen Yarn ×8 and 1 other — which resolve to 4 distinct raw materials totalling 20 units, plus 27 crystals.

That bill outweighs 7,876 of the 13,602 recipes tracked here and 1,022 of the 1,968 Weaver ones, and 337 recipes nest deeper.

Only 7 of those crystals go into the final step; the other 20 are burned by the intermediates, so the real crystal cost is 18 Lightning Shard, 6 Water Shard and 3 Wind Shard.

The chain crosses two disciplines — Weaver to Lv 35 and Alchemist to Lv 20 — so no single class can finish it unaided.

All 4 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.