www.ahfabrics.com is Alexander Henry's site. I think that they only sold wholesale to the trade. At least, that's what their site indicates.
Their fabric is wonderful... but it is not decorator weight. It's what I'd call "beefy", meaning that like Michael Miller and Timeless Treasures, it's printed on cotton that's a little heavier than other brands.
I suppose that they might do a run of fabric on a different weight, if it's commissioned by a manufacturer. But as far as I know, what's on the retail market is all cotton quilting fabrics.