Pdx 42" update

[Macrinehart]

Might even be more like 1.5" wide inside dome.

Well noted. I was busy marking up my bricks with a 2" outer bottom width, which results is a 1.7" inner bottom width. I got your point though. I will attempt the feathering as suggested. I wonder if I should take the angle grinder to the inside edge of the dome to round off some of my sharper angles on the 10th course for a tighter fit?

(It seems like a good idea, but I suppose I worry about messing things up. Maybe instead I should dry fit the next course and take off somw sharp edges for a tighter fit to the existing inside top edge of rank 10)

[Macrinehart]

I decided to experiment with one piece. Not sure on the results. On the positive side it fits very tight to the place its intended for. But the angle cut on the inner face means the bottom depth is reduced which causes the outside bottom to be recessed about a quarter inch inside the outer curve of the dome. Not sure if that is an issue?

[UtahBeehiver]

That should work and luckily you do not really have that many to do. You really only need the do the conflicting area (inner dome area) say the first 1 1/2-2" and let mortar fill in the back side. IMHO, use the brick you bought.