include a generally triangular shaped projection 44 intended to engaged one of two correspondingly shaped surfaces 46 48 as shown in fig9 rather than contoured portion 40 having a smooth radius a polygonal profile may be provided such as a portion 50 that maintains the no sight and universal characteristics of partition 18 discussed in greater detail above fig1 illustrates a door and pilaster configuration where door 20 may be installed in and operate in only one of the in swing and out swing positions referring to fig1 and 12 yet another embodiment of a partition 18 is illustrated as shown in fig1 and 12 a door 120 includes a contoured portion or lip 134 and a contoured portion 140 portions 134 and 140 are similarly shaped such that only a single pilaster configuration such as a pilaster 126 having two contoured portions 142 is required to engage both sides of door 120 this further reduces the number of components involved in partition 18 and the associated material costs referring to fig1 another embodiment of partition 18 is illustrated according to another exemplary embodiment as shown in fig1 door 20 may include contoured portion 40 on both edges e g left and right edges as facing door 20 in an installed position pilasters 22 and 24 may each include corresponding contoured portions 42 on one or both sides or edges in this manner both door 20 and pilaster.