Hi diviabhi Here are a few links to companies which supply the roman blinds you are after (blockout & sheer). I would suggest looking at a few, getting an idea of the type of blinds you are after, doing a cost comparison between them all. You might want to request an obligation free quote. Of course, depending on your location, some may be more suitable than others. Fabric/Material, Exposed/Hidden Tracks, Motorised/Manual, Cordless/Corded and COST are all things to take into consideration. http://www.kresta.com.au http://www.victory.com.au http://www.luxaflex.com.au http://www.sunway.com.au http://invisageinverloch.com.au Take your time and good luck with your decision.

To Australian Home Designer. Thank you for your advice but I'm not trying to replace the doors with a window. The double glass doors are on the study, and they open onto the very small balcony which measures approx 2M X 0.9M. The balcony has slate type tiles on the floor, there is a roof above and it is enclosed either side by concrete? walls. The balcony has an opening about 2 M wide by 1.5 high, which is what I'm trying to addres. The balcony is next to useless as it is and I could make more use of it if I could enclose it. I tried to add another photo to give a better idea, but for some reason I wasn't able to. So, I'm not trying to replace a window but install something in an open space to act like a window. As this area is considered common property (even though no one else can have access to it unless they walk through the apartment), I have to advise the corporate body. Chances are they'll ask for me to arrange for a by-law to be drawn up. It never ends does it? The other thing I should mention is that Council said (when I first approached them) that the developer would have used every available space to the enth degree. The developer has confirmed this with me. The block is almost 2 years old and all owners are the first occupants. Thank you for taking the time to respond. It is much appreciated.

Bay Windows can be gorgeous but need more space away from outside footpaths and driveways to look best and the new framework would have to be about 75cms out from the existing outside walls to include a comfortable window seat..and installing a new bay window in an existing window may not be cheaper because you have to first remove the old window and then custom build a new structure and window to suit the available space so it may be better to consider another position around the house, even if it means removing a solid wall..look for a wall space at least 2m wide with at least 1m plus a footpath width clear space outside, preferably looking onto the back garden not the neighbour's side fence

Something to consider with roller blinds- The blockout ones can really block the airflow in Summer, and if you do leave the louvres open, the slightest breeze will cause the bottom rod to bang against the window frame. You can fix them so they don't do this, but again you have the reduced airflow.....which is why you have louvres in the first place. We have the same problem. My son's bedroom. He seems to have adjusted to no window coverings. Luckily we have no privacy issues.