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when I was choosing my backsplash, I first narrowed down to what I thought would work for my space, color wise, level of splash! etc... then I used Autocad to layout the pattern I wanted. I find Autocad to be a huge hastle, couldn't figure out how to print it out (am new to it), and thus used Adobe Illustrator, which I have used for years and am very proficient in. I drew the space I wanted to tile (full size.. am able to do that in Illustrator just as you'd be able to in Autocad), then drew a rectangle to size of my tile, and then just started laying it out. this is how I figured out how much I'd need. I ordered the tile. When the tile guy came, I used my diagram to lay out the actual tiles in the pattern on my countertop so that there was no question what I wanted. It turned out exactly as I would have wanted (with the exception of it not having a tremendous amount of SPLASH!!.. but dh and i agreed that the more splash we went for, the more we may live to regret it/grow sick of it). here is a pic of the pattern I chose: For inspiration, I love Urban Archaeology's website. linked below: Here is a link that might be useful: awesome tile

Another user with an old version of Chief Architect here... I only use sketchup these days. Learning curve is fairly quick, with help of online videos. And the price is great :)

You'll want to use something like Revit then, or if you're looking for something to start with and free I'd agree sketch up is the way to go. I think you'll find that with the programs you are using importing and exporting into vwx will be clunky and possibly inconsistent. Revit also plays well with autoCAD which, in theory is more likely to be used by the architects/engineers you'd be working with on those kind of corporate projects.