Clear white spruce, milled from stock thats been air drying over a year. Kiln dried stock will no longer reliably take the bend it needs to once he cells are altered. Air dried lumber bends fine.
Nice straight grain
For a sheer with as much upturn as this model has, rails go on form the easiest if pre bent, then heated up again when mounted on the form
Bending around a form ensures uniform curves
On the form against the backers
Ribs are next
Soaking in the pressure tank overnight
Couple quick stands for the tank