The fresh white period door is framed with large glass panels to let light flood through to the stunning decorative floor. (idealhome.co.uk)
It follows the same glass sandwich design where a metal body is sliced between two large glass panels at front and back. (suggestphone.com)
These tend to be made up of two or more large glass panels, opening and closing in line on a track, with one panel sliding behind the other. (idealhome.co.uk)