This is an issue I seem to be having every time I design a foundation for a metal building. Where I have to design a pier for a column, the wall needs to be thicker to fit the rebar cage. I usually use a 24" thick concrete wall in SP. The intermediate piers clean up nicely. However at the corners it is generating a line where the two different wall thicknesses meet end to end,. The one I am showing in the picture is an example. The pier / 24" wall at the corner is running up and down. The wall join coming in from the left cleans up nicely. I am getting the line at the end to end match.
Thanks,
Neil Paquette