I'm not looking for installation advice but advice from experience. I've had a couple of quotes to turn a window (1800mm wide) into an external door way and brick up our existing single side door. The issue I've got is that they both contradicted what is best. In the living room, we have a sliding door, for a bigger opening which was already there. I'm not sure whether to go with either: https://www.expressdoorsdirect.co.uk/patio-doors/french-patio-doors or https://www.expressdoorsdirect.co.uk/patio-doors/bifold-patio-doors If the bifold is 1800mm, this means 3 x 600mm doors. One builder suggested this access door is a bit of a squeeze and for the amount of weeks in a year you'd have them fully open, would be better suited going for French. Anyone with any strong opinions, as I could do with making a final decision pronto. Thanks.