FIRST FIND YOUR TIMBER
Here is our raw material, a heap of old window reveals, which need to be milled to the correct width then laminated. Admittedly a nice pile of western red cedar or paulownia would make lighter boards and arguably would easier to work with.
The pile on the table are ready to go. There is nothing fancy about this timber, its just finger jointed pine, but with so many laminations it will be quite stable when it's finished.