Here the workbench is the thing a fresh spawn lacks. The board is a default blueprint, so nothing needs learning, but it asks for a Level 1 workbench. On a beach start that means a bench stands before anyone plays in the waves. The metal fragments are long smelted by then.
The tarp is where to stop and think. It is loot, never crafted, and one tarp is exactly what a sail costs. A board is for fooling around near the shore; a sail on a boat you built gets your group to an island. If your tarps are few and the water matters to your wipe, the sail wins.
Once tarps are spare, craft it with a clear conscience: nothing else on the bill is scarce.
Questions
Boogie Board ×10: how many resources?
Metal Fragments ×750, Tarp ×10.
Which workbench does Boogie Board need?
Workbench level 1.
How long does Boogie Board take to craft?
15 s for one, every step included.
How much scrap does researching Boogie Board take?