/ plank can be crafted with the following recipes

Autolearned
Player Recipe
Primary skill used: fabrication(0)
Required skills: N/A
Time to complete: 120 minutes
Tools required:
> 1 tool with wood sawing quality of 2
Components required:
> 1x heavy wooden beam
Byproducts:
> 4x splintered wood, 8x plank

Autolearned
Player Recipe
Primary skill used: fabrication(3)
Required skills: N/A
Time to complete: 10 minutes
Tools required:
> tablesaw (250 charges) OR circular saw (off) (500 charges) OR bandsaw (250 charges)
Components required:
> 1x heavy wooden beam
Byproducts:
> 4x splintered wood, 8x plank