In article ,
Bob Mannix wrote:
If you can do this, it's either an inferior design or been badly
installed. My Screwfix one has blocks specifically designed to stop
this.

Why would you want to stop this when the door is in the open position?

It means anything stopping it being raised would only be at one end,
allowing it to be levered up easily even when closed.

--
*Why are a wise man and a wise guy opposites?

Dave Plowman London SW 12
RIP Acorn