Everything about our home is strong, but the twin sets of doors at each end of the central corridor in the upper level of the house are a good example.
Firstly the doors themselves are 6cm thick. Then each door has six heavy duty hinges plus four slide bolts plus a key lock. On the outside of each door is a steel framed flywire security door.
But wait, that's not all. In the picture you may notice two holes in the wall beside each door. These enable the installation of two cyclone bars that run horizontally on both sides of the doors.