Are these bifold doors going to cause me grief? No tracks... And are they "good wood

Hi there, thanks for all the information I have gleaned over the months as a non-registered user. Now I have registered and hope someone can offer advice/information on some doors we are thinking of buying from ebay. We are building a new home in sunny Moruya...

The first question is, does anyone know if "plantation Eastern Red Cedar from Laos" could be regarded as sustainable?
Secondly, there are bifold doors for sale (made of said cedar) where the two outer doors are double hinged but no tracks are involved. Is this just asking for trouble later on due to the weight of the doors pulling on the hinges?

The doors I am talking about can be seen here: SWBF2950 - 2950 x 2100h Bi Fold French Doors Furniture Downunder | Solid Red Cedar Doors and Windows


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