3 ms·Do you mean the spacing between the two panes of glass?by UltraSane 2y agoDo you mean the spacing between the two panes of glass?bgnn 2y agoNo no, the thickness of the glass panes.UltraSane 2y ago12mm thick glass is pretty damn thick and is normally used for for table tops, glass walls and partitions, hearths, frameless balustrades at ground level, and kitchen worktops.