Abstract: A suspension system for mounting a false ceiling which allows for adjusting the height of the false ceiling to any desired value. The system includes: a system of ceiling rails screwed or otherwise connected to an existing ceiling; a number of suspension pendulums mounted in the ceiling rails, each of which includes: an upper telescopic part for mounting in a ceiling rail, and a lower telescopic part for connecting false ceiling plates to the suspension pendulums. The telescopic parts of each suspension pendulum are slidable in relation to each other and have a substantially C-shaped horizontal cross section, and branches which are at least slightly resilient, and the upper and lower telescopic parts, at the branch edges thereof are formed with cooperating snap locking means for making it possible to interconnect the telescopic parts in any mutual height positions while the branches bow resiliently out, and in respectively, until they have been lockingly snap engaged in each other.