Ever got annoyed when you’re having the barbecue in the summer and you have to dash in and out the house awkwardly through the back door? With patio doors the transition from in to out is lessened considerably, and a far easier experience for it. Imagine you’ve got so many people at this barbecue that there is inadequate seating outside to house them all, you wouldn’t want to split your guests up into the indoors and outdoors, right? With patio doors you can effectively join the inside and the outside.