In terms of using imperial measurements you can draw in which ever scale you wish but when associating your drawing entities to a Price List item, you have to be to use the appropriate rates (ex: $/sq.ft - $/ft – etc.)
As with SketchUp, we don’t import .skp files directly into PriMus-TO, but it’s perfectly compatible with the .dwg/dxf file formats that SketchUp supports for export.