A shower door hinge assembly includes a guide member including a generally cylindrical body, the body defining a plurality of diametrically opposed circumferential slots. The shower door hinge assembly further includes a clamp configured to receive a portion of a shower door, the clamp defining a recess configured to receive a first side of the guide member. The shower door hinge assembly further includes a base defining a plurality of openings and a spacer comprising a generally cylindrical body defining a plurality of through holes at an outer periphery thereof, a first side of the spacer configured to be rotatively received in a corresponding recess in a second side of the guide member. The shower door hinge assembly further includes a plurality of pins configured to be received in the plurality of openings of the base, extend through the plurality of through holes of the spacer, and engage a portion of the plurality of circumferential slots.