http://www.wired-designs.com/ceiling/overland-ceiling/ 

Dimensions

28" DIA X 24" BH X 40" OAH

The model is based on the original manufacturer dimensions and technical data.

Materials and groups are named the same, as the model.

Instance geometry, one multi-submaterial for model for easy change or setup.

Object at 0.0.0, clean and light scene.

The archive contains the OBJ & 3DS file & more previews.