A place for English speaking sofrim (scribes), magihim (examiners), rabbis and vendors of Stam (Torah, Tefillin and Mezuzah scrolls) from around the world to communicate, share ideas, ask questions and offer support and advice.
If a person follows Chabad practice and uses Hekker ztir to acertain mezuzah placement, what is the din in the case where the back ikker door is a sliding door and there is a secondary security gate that sopens OUTWARDS to the garden. The garden has access to the street (around both sides of the house) so normally If it was just a sliding door I would do yemin haknisah into the house. However the security door throws a spanner into the works. Please see picture.