Part 1: Scarf joint the first layer.

Part 2:When dry, mark it and rough trim to the mast profile. Laminate to the next layer.

Part 3: When cured, rough trim second layer to match the first. Repeat these steps until thick enough.

Part 4: Mark and trim the mast profile in the other plane.

Part 5: Mark and trim the square section to an octagonal section.

Part 6: Plane and sand to round.

The finished masts caused me to reflect a bit on the complete process of their creation. Somewhere in one of the western states, a logger fells a Douglas Fir. The tree is carried to the mill, where it is sawn into boards, seasoned. and planed to final dimension. The finished boards are shipped to a lumberyard to be sold. The boards are scarfed to create the desired lengths, then laminated using some variety of wonder gunk. The timber thus created is sawn, planed, and sanded to its finished form. The mast-maker steps back to admire the results, and realizes: he's reverse engineered a tree.