I’m gluing together half-inch plywood to make
one inch thick boards. I’m going to make the seat one third of the
way up. And I’ll make that cutout the same thickness
as this board. Now I can mark out where this long tenon goes. This is the part I’ll cut away on the band
saw. And that’s all there is to the two-board Viking
Chair. It’s super-simple to make and You can build this in about an hour. Here are the dimensions I used, but you can adjust them however you like.