Planking
Boatbuilders today typically frame a vessel first, then add the
hull's planking. The Khufu boat was shell-built, meaning the outer
skin of planks came first, then the interior timbers and framing.
The workmanship is exceptional. The pharaoh's craftsmen shaped the
ship's 30 hull planks from logs as long as 76 feet. They also
sculpted the planks to follow the shape of the hull, and they
joggled them along the edges, meaning they carved them in such a way
that they lock together like puzzle pieces.