I'm considering building tapered columns for a Habitat house I'm working on. They will be PVC approximately 6 ft tall and be 5 1/2" square sitting on top on a 2 ft high brick base that is 19" square.
My question is "How much taper should there be over the 6 ft length"? My feeling about tapered columns is that the taper should be barely discernible. I have seen ones where the taper was exaggerated and looked over done.
My second question involves the construction. I'd like to bevel the corners but am not sure how this would best done on a table saw. A tapering jig would work fine for the first pass but and unsure how to cut the other side.