I looked into the nana wall and several other options as well --- They are really cool, but in the end, we determined that our house location and set up didn't warrant the expense of these. Now, if we had an awesome view, we might have done this. My recollection of this in terms of pricing for Nana Wall and some of the other brands: I believe it was about $800 a foot for this --- so for a 12' opening, it worked out to about $9600 --- I looked at several manufacturers and the pricing was all in that ballpark. Will your doors open to a patio, a screened porch? This was a concern for us in this decision. We ended up putting a screened porch, so the Nana concept would have been great, because opening the doors wide would still be within the screen.... thus no bugs, etc invading the house. If not, you might want to consider with lights on in the house and the doors wide open, you might get every moth in town visiting! Another consideration is how to stack the panels. In our plan it was working out to be awkward --- and the "stack" would have been in the way. Just make sure that if you go with these, you have that planned carefully... some of them can stack inside a wall, which is pretty neat. Another consideration to think about..... look back at your pictures linked.... the transition from inside to outside.... if you are trying to make a very open space, be careful of that little half step transition.... it looks like a tripping hazard to me. I would want either a full step down, or preferably a level transition there to open up the space. The top picture has a small step, which can be an ankle breaker! Finally, if you are trying to maximize your view through the house straight out the back, maybe consider an odd number of doors so the exact center is glass, not the door frames meeting in the middle (your bottom picture does this glass in the middle way). If you think about your set of 4 doors concept, the dead center part will be about 8" of door frame, vs. glass. If you use 3 or 5 panels, the center view would be glass. This is why in the first few pictures they show the doors open, because it looks way better open than closed. But in the last picture, the view is great regardless. And.... while I think the standard is to have the center 2 panels open on french doors, it makes furniture placement more difficult, so just make sure you've thought about it! Good luck would love to see pics of the view, etc! Rachel

I have two options available at about the same cost, one is a LaCantina multi-slide (4 panel) and the other is a Euro Wall lift and Slide (4 panel). I have a multi-slide in my current house, but have no experience with lift and slide. From what I read, lift and slide are a bit nicer, but wanted to get some other opinions on which to go with. Thanks in advance for any advice.

21 feet of opening is a significant number in earthquake country. Even with a shear wall on the other side, I'd forgo the 21 feet of opening in favor of a pair of openings and a wall in between. In my area, the seismic concerns win for most homeowners. It's not so much fear of collapse in the Big One or fear of pancaking in two-story houses and apartment complexes (a la Sylmar and Northridge). The constant settling and flexing from lots of mag 3-6 quakes affects how doors and windows open and close. 10 and 12 foot exterior door and window openings are affected, so are smaller openings.

About a year ago we had all our windows and a patio slider door replaced with Renewal by Anderson's new Fibrex windows. The Fibrex is a composite of wood fiber blended with a polymer: it wont flake, rust, blister, peel, crack or corrode, is 2x stronger than vinyl and resists warping. I live in NJ so we chose the Low-E4 SmartSun glass: their most energy efficient glass option for cool and hot climates and blocks 95% of UV rays that can damage drapes and furniture. They are easy to clean, and look good; there are all sorts of styles to choose from. They had a very experienced team install them in only 2 days. I researched all sorts of brands of windows and chose Anderson. The warranty is super and is fully transferable should you sell your home. Best of luck in your window journey!