The Plank Make spell requires level 86 Magic. It will convert one log that can normally be converted at the sawmill into a plank of the same type. There is still a per-plank cost - it costs 70% of the coins that the sawmill operator would charge. However, this saving is negated by the rune cost of the spell. Therefore people use Plank Make not to make money by making planks, but rather to train Magic. Plank Make is a good method to train Magic and is faster experience than High Level Alchemy. However, the need to stay in a bank area may cause players who like to train other skills along with Magic to be more attracted to use High Level Alchemy.

Plank Make may be cast once per 3 game tick (about 1.8 seconds). Including banking time, up to about 1850 Plank Makes may be cast per hour, giving up to about 166k Magic experience per hour.

Note: this many casts in one hour may be reduced by lag, mistakes (such as clicking on planks that have already been made), or distractions.

Log Plank Cost in coins
Spell Make Sawmill
Logs Plank 70 100
Oak logs Oak plank 175 250
Teak logs Teak plank 350 500
Mahogany logs Mahogany plank 1050 1500

As with all Lunar spells, the quest Lunar Diplomacy must be completed to cast this spell. However, a player must have also finished Dream Mentor to cast this Spell.

Cost

Spell cost
InputCost
15Earth rune.png1Nature rune.png2Astral rune.png595
Combo runes
1Nature rune.png2Astral rune.png15Dust rune.png595
1Nature rune.png2Astral rune.png15Mud rune.png4,180
1Nature rune.png2Astral rune.png15Lava rune.png595
Staves
1Nature rune.png2Astral rune.pngStaff of earth.png535
1Nature rune.png2Astral rune.pngDust battlestaff.png535
1Nature rune.png2Astral rune.pngMud battlestaff.png535
1Nature rune.png2Astral rune.pngLava battlestaff.png535

Cost analysis

Item Materials Required Material Cost Profit/Loss
Logs.png Logs > Plank 1Nature2Astral Logs.png 70 743 -309
Oak logs.png Oak logs > Oak plank 1Nature2Astral Oak logs.png 175 853 -346
Teak logs.png Teak logs > Teak plank 1Nature2Astral Teak logs.png 350 1,171 -204
Mahogany logs.png Mahogany logs > Mahogany plank 1Nature2Astral Mahogany logs.png 1,050 1,998 112


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