Secured by Design - Interactive Toolkit

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Letter boxes certificated to TS 009 (a standard published by the Door & Hardware Federation) offer reassurance that all of the above attributes have been met. In high crime areas TS 009 provides the safest means by which mail can be delivered whilst eliminating the risks associated with letter plate apertures.

Where a single surface mounted letter box is used for a unit it must be robust in construction and securely fixed to the external face of the building. It must be located in a position that benefits from natural surveillance. The letter box must incorporate a design feature that prevents the removal of mail through the delivery slot and the access door for mail collection must be lockable.

Products meeting the requirements of DHF TS 008 (a standard published by the Door & Hardware Federation) provide reassurance that ‘through the wall’ letter boxes offer similar security attributes to secure letter plates and many of the attributes that an external letter box conforming with TS 009 would provide.
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Mail delivery is provided across the development either via external letter boxes or through the wall, thus reducing the crime problems associated with letter plate apertures, such as arson, lock manipulation and ‘fishing’ for personal items.

Where multiple boxes are to be used within the entrance foyer of shared by a number of businesses or flats, the boxes must incorporate the same design features as a single box. Depending on crime risk it may be necessary for such letter boxes to be located within an ‘airlock’ access controlled entrance foyer, whereby access can be gained by the postal worker through the outer door only.