Bless you live in CA, with a year round temperate climate, they are all a negative to the home’s envelope.

@BabaGonzalez. I'm assuming you meant unless not "bless". Why do you say they are a negative? Ours would be inside of a large covered area where the elements would not be hitting it.

These large doors are very common in many parts of the US. The only issue, even with your covered area, is that you will have to deal with sun/heat control if the sliders truly face west. You will need blinds on the sliders or depending on the layout, you might be able to put solar shades outside at the edge of the patio/lanai/porch.

We have west facing french doors and windows in CA and have to use blinds inside and solar shades on our patio to manage the afternoon and setting west sun.

What brands are you considering?

Lift & Slide will be a tighter seal but the stacking door will give you a larger clear opening. Brand would make a difference to me as many offer better L&S than stacking and vice versa. But in your case not exposed directly to the elements I may opt for the stacking regardless. Where are you located as that may very well make a difference.

Thank you "Millworkman"!. We are located in the Pacific Northwest. We are considering Marvin, Plygem, and Millguard. What brand would you recommend?

I have Millgard windows that came with the house and I would never use their products based on what we have seen. House was 10 years old when we bought and a few windows already had broken seals. Have replaced those and many more over the last 10 years.

Next project will have Marvin windows and Euro-walls sliders. The Euro-walls get good reviews and are at a better price point than the Marvin sliders.

Thank you, Chispa! Appreciate the input! Will check out Euro-wall sliders. Have not heard of them before. I edited my post because I meant to say multi-slide not stackable.

Not familiar with Milgard L&S or Stacking Doors. their windows are decent so I would assume the doors would be as well. Anything Plygems is a non-starter in my opinion, especially something like you are proposing. Marvin is a solid standup company with quality products in any of their series. You ,may look at Weiland, Fleetwood, Eurowall like mentioned above is a solid product as well.

Which door did you end up going with? We’re in the PNW too, looking at a lift and slide for a northern exposure wall. I’ve looked at Weiland, our window and door store also carries Kolbe, Marvin and Western.

" I’ve looked at Weiland, our window and door store also carries Kolbe, Marvin and Western. "

@Michelle F., you are fortunate and have a good window dealer as those are all quality products. Just make certain your installer (if not from the store) is well versed in this type door as they can be a tricky install to get right.

Michelle Fraedrich, as it turned out, our property was too sloped so we had to change our whole design and ended up with our main level not being ground level, so we have large picture windows looking towards our view and a deck with oversized 2-paneled sliding doors.

Ah. Thank you for your response!