Which company did you go to for the quotation? I am thinking of doing it for my house too when I start my reno a few months later...

Mind to share the company doing this sliding door? I will like to do something like that to separate my wet kitchen from the rest of interior. However, mine will be just a single sliding door since I only have like approximately 3.5' entrance. And by the way, I also bought the Fotile hood and hob but since my reno hasn't started yet, I haven't look into the details of it. So just need to know why the need to reduce the ducting from 7" to 6"? Is 6" the standard size or is it the maximum size used in Malaysia?