Step 6. Prepare the tabletop
Each pair of tabletop boards need to be fastened together in the middle to ensure that the seams stay flush.
This can be achieved by inserting a 10mm (3/8") galvanized rod or wood dowel into pre-drilled holes located centrally along the edge of each tabletop
board. See fig.4
Take care when marking for the drill holes. Clamp two boards together back to back and square a line across the edges of the boards centrally from each end. Intersect the line with another line centrally
from each face side.
In simple terms, ensure that the hole mark is in the middle of the edge of both boards.
Drill a 10mm (3/8") diameter hole 90mm (3 1/2") deep into the edge of both boards, insert the galvanized rod or wood dowel and tap the boards together.