Simpson Door would be a cost effective alternative for this. http://www.simpsondoor.com/door-products/search/results/Default.aspx?doorStyle=Exterior&glass=&fullLite=yes&threeQuarterLite=&halfLite=&quarterLite=&paintStain=&currentPage=3

where do you live?

Hi there, we live in NJ and are looking for oversized sliding doors that would go from our kitchen and dining rooms to the outside (each unit would have to span 10 feet wide). I looked at the Kolbe lift and slides (we will probably go with their vista luxe collection for windows) but feel like their frame is too chunky. Any suggestions for where I might look? Your work is positively beautiful. Thank you so much in advance!!!

Thanks for the kudos. The deal is that no pre-manufactured window will provide a 10' wide opening. You need a custom door company to do that. Quantum windows and Doors can do it but they will cost you! http://www.quantumwindows.com/default.aspx

Slide-fold doors are also an option (Nanawall - http://www.nanawall.com/ or Cantina Doors - http://www.lacantinadoors.com/). But they are still pricey, at about $1,000 per lineal foot.

Good luck!