Arbor Interior Wall

Taken all the way down to base materials, one Arbor Interior Wall is 3 crafting steps deep and needs 5 intermediates — Mortar ×4, Walnut Lumber ×2, Growth Formula Gamma ×1 and 2 others — which resolve to 8 distinct raw materials totalling 27 units, plus 22 crystals.

That bill outweighs 9,763 of the 13,602 recipes tracked here and 1,005 of the 1,552 Carpenter ones, and 337 recipes nest deeper.

Only 6 of those crystals go into the final step; the other 16 are burned by the intermediates, so the real crystal cost is 12 Water Shard, 7 Wind Shard and 3 Ice Shard.

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

7 of the 8 raw materials match a gathering node, none of them timed; the other 1 comes from vendors, drops or content this site does not track.

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