The reason that you're dad is telling you this is because of the sizes of the doors. Each door will be less than 3ft wide, and ordinary sliding doors do not slide back completely behind the other, therefore, the gap that you walk through to get outside will be impeeded, probably by around 10-12 inches. When you take into consideration the width of the frame on both sides, your gap will be tiny, i'm hazzarding a guess at somewhere in the realm of 20-24 inches. Of course it is possible, you can have them whatever size you like. Just ask the window company what gap you'll be left with to walk through ! Other sliding doors ( the expensive ones ) - push out then slide over, making your gap larger. If you can afford it, then bi-folds will work, other than that two lovely large patio doors that open out mounted toward the outer edge of the building so that they fold as flat a possible agains the outside walls. We put these on one of our builds, and it's fabulously light and airy inside and the doors open a long way out and back These are the sort that you mean, and we have put them on builds, but you end up having to turn slightly sideways to go through them because of the diminished gap!

Those glass doors are a bit 1990s office block though. Maybe a wooden frame with glass panel/s??

Hi, I know this discussion has been a while now, but what option did you finally go with? We are also in a similar situation. We are considering a bifold or slide and turn option. Sunseekers reviews seem better than new wave. I look forward to hearing what option you went with.

Depends on the mechanism but if the door doesn’t get scratched or scraped then there’s no reason why wallpaper should either. A problem worth mentioning tho is that the edges of the wallpaper would remain visible. Photo below shows a screen I bodged together from some old wardrobe doors and I wallpapered them both sides, notice the white edges of the paper. Only way I can think of overcoming this is to have the wallpaper slightly inset and paint a border round the edge. I would also use decorators varnish on top of the wallpaper to protect from dirt and and the odd scuff or two. A vinyl decal (wall/door sticker) would definitely work tho, and far easier to apply.