I do quite a bit of furniture, but not in the higher segment of the market.
Not sure if a zoom lens is the way to go. On a FF Nikon , a nice set of lenses would be the 45mm and 85mm PC Nikkor with some basic movements. Don't go too wide, except if you need to shoot your furniture on a location.
But since we are here on a MF Forum, the ultimate tool would be a Hassi with a HTS and a set of 2 or 3 lenses or of course a view/tech camera with two lenses between 60 and 100mm.