In the UK the term patio doors has long since been used for a range of door systems that connect the house to the patio or decking. Previous generations of sliding patio doors have been heavy to operate and lacked the modern security and thermal efficiency performance required, so to distinguish our highly engineered doors from these older style systems we refer to them as sliding doors. These contemporary aluminium framed sliding doors are capabale of holding huge panes of glass (with panels up to 3m wide) that can be operated effortlessly and exceed the modern security and energy standards required by current Building Regulations.