I have no clue and where are you putting pannelling or do you mean more like wainscoting type trim. A bit mor einfo and ask the designer for some pics of what they are talking about.

It would imply a raised V groove HOWEVER there is no one to ask except the one we said it. Sorry I have never heard of such a thing.

Thanks - it was at a conference, and I wrote it down very specifically as I had not heard of it either - it was for a floor to ceiling implementation of wood paneling. I think they might have just meant "V-Groove"