Imitation Closed Door

Taken all the way down to base materials, one Imitation Closed Door is 3 crafting steps deep and needs 6 intermediates — Bismuth Ingot ×3, Integral Lumber ×3, Mortar ×3 and 3 others — which resolve to 10 distinct raw materials totalling 51 units, plus 77 crystals.

That bill outweighs 12,830 of the 13,602 recipes tracked here and 1,355 of the 1,441 Armorer ones, and 337 recipes nest deeper.

Only 16 of those crystals go into the final step; the other 61 are burned by the intermediates, so the real crystal cost is 24 Fire Crystal, 24 Wind Crystal, 8 Earth Crystal and 3 other kinds.

The chain crosses four disciplines — Armorer to Lv 90, Carpenter to Lv 88, Blacksmith to Lv 84 and Alchemist to Lv 50 — so no single class can finish it unaided.

9 of the 10 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.