Yes they are, since the top and the bottom sections are the same and both accommodate wheels. What is important though, is to ensure from the start of the installation which side you prefer it in order to avoid unnecessary drilling. In most cases the drilling holes are hidden by aluminium clip-on sections.
No, as long as the door opens outdoors and not inwards. At the bottom, there is a stepped section which the door panel closes against, basically insulating from the outside elements. Of course extreme weather would be the exception.
Folding doors are a complex combination of hardware and systems. It is highly advisable that you investigate properly at the moment of ordering that you have understood which way they open and they operate, else it will not be possible to change the doors to open differently. One can modify such doors, but you have to understand that some of the aluminium sections will be replaced with new ones, and hence this will incurr costs which will be payable by yourself.
By law and due to safety reasons, all our doors are glazed with toughened safety glass (TSG) or laminated glass (2 sheets of glass stuck together with an adhesive). One cannot compromise on the safety of our customers and all products will be released with a Glazing Certificate for your peace of mind and insurance purposes.
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