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

Phanthom screens can make and install large roll down screen walls. The large ones are motorized. Here are some of the specs. for the large roll down screens: * * * (cut and pasted from http://www.phantomscreens.com/products/execspecs.html) Executive features Fits most oversized applications Retracts out of sight when not in use Adaptable and versatile Remote controlled at the touch of a button Optional manual retraction system Complete ventilation Keeps pests at bay Enhances privacy Popular, designer colors Variety of screening and shading options to suit your needs Professional service and installation Limited Lifetime Warranty Adaptable to your needs Executive Motorized Screen Sizes Width ......... Pull Length 40" to 25' ..... 2' to 16' Executive Manual Screen Sizes* Width ......... Pull Length 18" to 19' ..... 2' to 11' *Not all mesh options are available in all sizes. A choice of colors Executive Screens are currently available in White, Brown, Almond, Bronze, Sandal Wood and Driftwood Beige. Classic White Rideau Brown Slivered Almond Bronze Sandal Wood Driftwood Beige A variety of options The Executive Screen has a variety of screening and shading options to enhance your home's unique features: Insect screen: Reduces up to 55% of UV rays and is recommended for large openings and to keep bugs out. Solar Screen: Blocks the sun's heat and glare by up to 75% while keeping pesky insects out. Premium Solar Screen: Offers substantial shading and reduces fading by blocking up to 80% of UV rays. Privacy Screen: A complete block-out material that provides up to 100% blockage of UV rays. Ideal for home theatre rooms. * * * Katy Here is a link that might be useful: Phanthom screens

Thanks for all the advice. Now the dilemma we are having is if 16ft bi parting sliders are too big for a 22ft living room wall. Concern is it will pretty much open the whole room. But we see that most of the new constructions are opening as much as possible to give the wow factor. Consulted couple real estate agents and they feel it will help in resale later by having a 16ft slider. Any advice is appreciated.

It looks like a regular door if it installed right.