OK, I've not gone to their site to check, but this is what I know, from ordering two replacement shields from them in the past.
If you order a 'stock' sized shield, the new one you get will be just that, stock sized. It may be a mm or 2 wider or taller, but is pretty much just like an OEM in size, other than being thicker.
I've ordered two... The first was a 'stock size'. It bolts right up to the Honda mounting brackets, and like mentioned before, it is thicker, and thus 'stiffer'. The second one I ordered was 2" shorter than stock, and smoked. It is just as advertized... 2" shorter, and the same width as stock. I know this because I run a Hoppe fairing, and anything wider than the stock width would not fit in the fairing.

Hope this helps.
Black Dog