Design & Materials 2 cont...

Well, I encountered a slight problem, no one has 4x4 Douglas Fir untreated in my area. So plan "b" is to make my own 4x4's, but the dimensions of the lumber is 3-1/2" x 3-1/2" square. I can't quite recreate this since the dimensions of 2x8's are 1-1/2" x 7-1/2", so if I sandwich two of them together I will have a thickness of 3" x 7-1/2". This is good because I can rip them in half to make 2 each 3" x 3" stock that I can use to provide the same look.