@obm890, ok now that makes more sense.  Thanks for clarifying. again!

@grosporina, don't let our detour chatter stop you from using Wings3D for modelling arch props for Poser.  Wings3d is truly a great modelling app, and the only thing I was suggesting is that it isn't ideal for "serious" architectural modelling, and I stand by that.  We kind of got carried away from your original post, but none of this will matter much if you're ultimately just modelling to export to Poser.

Anyway, I think Sketchup is a good choice, as obm890 has pointed out, to model architectural stuff, but since your work is being exported to Poser, it might end up being a disappointment for detailed models.  The models exported from sketchup will not maintain a good topology for Poser.  It outputs horrible topology in most cases.

Blender, Wings3D, or Hexagon (not free, but cheap) look like better options.

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Tools :  3dsmax 2015, Daz Studio 4.6, PoserPro 2012, Blender v2.74

System: Pentium QuadCore i7, under Win 8, GeForce GTX 780 / 2GB GPU.