I think slim line sliding doors look more modern and you'll get more view of your garden. We were going to have bifolds but have now decided on sliding doors. Our opening is 4m and planning to have 3 doors. As your opening is quite large, you could have 3 door and once they are opened, you will still get a good size opening. We're having 35mm profiles but I think you can get even thinner ones. Are you have a flat roof or pitched roof?

Tell us which you prefer! Read more here: http://bit.ly/bifold-doors-vs-sliding-doors

Trade handles and hinges for rails and wheels. Sliding wardrobe doors don’t take any space to open, but they do add modern style to a room. Choose from pairs of sliding doors or combine panels for a custom look. Now if only they would close themselves. (We’ll mention that to our designers😉) Would you like 1 or 2?

It sounds like you’re making great progress with your home's updates! If you're looking to create more space in the garden, installing sliding patio doors in the dining room is a good idea. Sliding doors allow for a more seamless flow between indoor and outdoor areas, especially in a smaller space like your courtyard. As for security concerns, modern sliding patio doors have improved greatly in terms of safety. While older models might have been prone to being lifted out of their tracks, today’s doors have advanced locking mechanisms, reinforced frames, and anti-lift features that significantly reduce this risk. Many manufacturers also offer options that include internal security bolts or multi-point locking systems for added peace of mind. If you’re worried about security, you might also consider adding domestic gates or additional fencing around your courtyard to reinforce the area further. That way, you can keep your home looking open and inviting while still maintaining privacy and protection. Ultimately, it’s about balancing aesthetics with security, and from what you’ve described, sliding doors could be a great fit!