Raymond wrote:I have to rekey a new building. It has 4 entrances and 33 offices. The management committee INSISTS that each office key open the entrance doors. We cannot seem to convince them how little security they will have with cross-keyed entrances. They just do not want to have to carry two keys.
Seems a job for Kaba cylinders perhaps - I seem to recollect that there are two types of cylinder with the pin tumbler holes drilled in different places. An office key would have two sets of dimples, one set to operate the office door cylinder and the other the entrance doors. Security is maintained compared with an ordinary 'Maison' system. If a key goes missing, it would be easy enough to re-key the office but a vexing decision whether or not to re-key the whole lot. It would be far better to have card or similar locks on the entrance doors so a lost card is easily locked out. Cyberlocks would be another option since the same key can be used for both doors and a lost key can easily be locked out, but the customer probably would not like the cost.