I guess it depends on the system from FoldADoor, but it appears that some frames comes WITHOUT GLASS.

• Glass ready, suitable for dual pane and triple pane. Easy glass install with rubber glass gasket seals. No messy silicone needed.

WeatherShield also offers folding door systems.

Does the brand seem legit? I'm a bit worried that there are no reviews. I spoke to the rep and they said that the price they quoted me included glass. I will try calling WeatherShield to compare price. Thanks for your suggestion!

Personally I would go with the Solar Innovations over a company that I could not get reviews on. And not that I know them all but I have never heard of FoldADoor. I have sold Weathershield and Solar Innov. and would go with the Solar Innov. in a minute with no worries, Weathershield anything not so much.

Thank you! Why would you avoid Weathershield? My only concern with Solar Innovations is that the doors are aluminum and it can get pretty cold in DC where I am installing them.

Weathershield from days selling the product and as I understand from people in the business today is a mediocre product at best in terms of quality, fit and finish, performance and longevity.

And I can understand your concern with the SI product. However thermally broken aluminum while not as good as a wood clad product for thermal propeties still is not terrible.

Any thoughts on the Euro Wall doors? I also got a much cheaper quote from them and they seem to actually have pretty good reviews online.

Don't know anything about them unfortunately. "Much cheaper" may be a clue however. But then again I don't know what much cheaper means in the overall cheme of things.

looks like FoldADoor is a trademark of La Cantina Doors... reference: https://trademark.trademarkia.com/foldadoor-77262194.html so they seem to be hedging their bets with this brand and covering the high end of the market with La Cantina and then the more affordable end with FoldADoor... probably very similar product

Bob riveting I was looking at weathershield but researching they have a lot of negative reviews (housz and others) common complaint is they leak between glass and customer service bad, I think they may only have a one year warranty.
I still haven’t chosen one yet

Origin USA, have you noticed any other window companies on here stumping for business? It is typically considered SPAM.

Haven't seen them in person yet, but one manufacturer we're researching is Panoramic Doors. Anyone have experience with them? Their website only mentions clear glass or Low-E3 and from what I've been reading here about windows, Low-E3 can cause a greenish tinting of light, so we'd probably lean towards E2 instead.

Got a bid from Marvin doors $17k (Wood) and Panoramic Doors (Vinyl) $10k for a 10’ by 8’ door. Panoramic doors have 10 year warranty and customer service so far has been amazing! Seeing the Marvin door in person I was extremely unimpressed especially for the price. I like the fact that it was explained that Panoramic doors carry the weight at the bottom not the top. I was originally concerned about overall structure with such a large door. I’m finding it hard to reach anyone at Nana wall and getting a quote online is a pain.