The capacity is calculated on the basis of little keys, wrenches kind. For classic, traditional keys longer. we can only use 2 strips instead of 4 per side. For the keys stored in the door, there is something ... You easily find if the door is hard to form. So do not be discouraged. On the contrary. Once the cabinet is filled, keys tidy, well-labeled. You will feel the pleasure of a job well done. And this, for a long time, given the strength of the cabinet and the quality of its finish, any German ... Recommended except for those who lose their keys too easily. In this case, that of key cabinet ...