Depends on what sort of ceiling you're trying to lay out.
For a simple ceiling, as has been suggested, a simple slab with the correct texture and vectorial hatching tends to suffice.
On the other hand, if you're talking about a tiled suspended ceiling with grid-based ceiling tiles, then I would recommend ManuBIM's most excellent parametric ceiling editor object which allows you to parametrically control the Ceiling object, set the grid adjust the display settings vis-a-vis Ceiling plan views, 3D window resolution along with additional ceiling accessories like ventilator diffusers, lights and fire-extinguisher/fire-safety objects.
You can download it from BIM Components at
https://bimcomponents.com/GSM/Details/14843
And you'll also see a demo video showing how it works and a tutorial video as well.
Stuff like that is part of the best reasons to upgrade to ArchiCAD 16 and I hope we see more objects of that sort in ArchiCAD 17.