Spruce Plywood ★★

Taken all the way down to base materials, one Spruce Plywood is 2 crafting steps deep and needs 2 intermediates — Horn Glue ×2 and Spruce Lumber ×1 — which resolve to 2 distinct raw materials totalling 7 units, plus 30 crystals.

That bill outweighs 4,963 of the 13,602 recipes tracked here and 509 of the 1,552 Carpenter ones, and 4,464 recipes nest deeper.

Only 21 of those crystals go into the final step; the other 9 are burned by the intermediates, so the real crystal cost is 11 Wind Shard, 10 Ice Shard, 6 Water Shard and 1 other kind.

The chain crosses two disciplines — Carpenter to Lv 50 and Alchemist to Lv 30 — so no single class can finish it unaided.

1 of the 2 raw materials come out of the ground, and one of them is time-gated: Spruce Log (9:00). That window comes round once per Eorzean day, every 70 real-world minutes.

Spruce Plywood is itself consumed by 1 further recipe, all of them Carpenter recipes.