The present invention relates to safety barriers, and in particular, for use around the perimeter of building floors during construction of a building. In one form, the present invention provides a safety barrier module for use in erecting a fenced-off zone around the perimeter of a building floor during construction of a building, the safety barrier module including: a barrier panel for inhibiting the passage of workers or objects from the building floor to the ground below; and at least one counterweighted footing block for receiving a support post connected to the barrier panel, the footing block arranged to rest on the building floor and to counteract loads and forces on the barrier panel to support the barrier panel in a substantially upright position relative to the building floor; wherein the barrier panel is geometrically shaped to extend from a predetermined height down to substantially the building floor level.