An attic access drop panel for selectively closing a geometrically shaped attic passageway includes a rigid panel having an external periphery formed to fit within the structural elements defining the attic passageway and an insulating member on top of the rigid panel conforming to the external periphery of the rigid panel. A plurality of angle brackets are affixed about the periphery of the rigid panel wherein each bracket has a first leg affixed to the top of the rigid panel and a second leg extends upwardly from the top of the rigid panel. The second leg defines at least one protrusion engaging the insulating member and forms a bead at a top of the second leg for bearing against a structural element of the attic defining the attic passageway.