Although as a ‘dream sell’ the bifold may notch ahead, the chances are, in our climate patio doors will be closed for a higher percentage of the year than they will be open. So, if we have a large open space, perhaps the bigger the pane of glass, the better, as we are more likely to be looking through it than we are to be opening it? Not only that, but the cost is also often lower too. Our CORTIZO UK range is an excellent example of a cost-effective aluminium door system making the aspirational bifold or patio sliding door customers dream, become a reality.