Not sure why Helioscreen said that the 3m may sag as they have blinds up to 4.2m wide - but the tube is a heavier duty tube (120mm diameter). We have installed blinds from Vertilux with 3.2m, 3.4m and 3.6m widths without any sagging - but you need to choose the right fabric. We have one example on our Houzz site and another on our Facebook site. Feel free to contact Vertilux directly. If you need contact details then let us know.

HI Not sure of your reason for the blind - glare? need darkness for sleeping? full moon in your eyes? ha ha Instead of a blind would you consider installing tinted film on the glass. This would still allow you to enjoy the trees you can see.

I am a big fan for plantation shutters you will be excited you did! You will make your money back & ease of re sale as people want them .Otherwise... If not With your kitchen get a professional in and get a tint on your window you can see out but they cannot see in until night then a simple blind will suffice. Lounge rm attach to ceiling!!.. to floor sheer curtains with a good colour curtain behind going the whole width of the wall.. bedroom a Roman blind... take advantage of your floor boards and do it properly the first time and save money!

to access the power point through a backboard cut a matching hole in the backboard to access the power point and add a small extension cord to have the power in a more convenient location but storage depends on what you need to store but try the PAX wardrobe (1500 wide x 2100 high) with extra shelves plus a freestanding chest of drawers eg Malm 80 wide to leave a small gap at the window wall for the blinds and use wall hung open shelves and don't forget to secure the wardrobe and drawers to the wall...if you prefer the chest of drawers to be the same depth as the wardrobe you could add an extra counter on top of the drawers (Ikea and Bunnings sell custom cut counters in various colours but consider having the chest of drawers and/or the wall shelves in different colour for constrast and matching knobs or handles to doors and drawers