folding stair

disappearing stair, folding stair, loft ladder

A swinging stair, usually a folding ladder, which enables passage to an attic space or loft. The stair is fixed to a trapdoor which, when closed, hides the stair from viewers below.
References in periodicals archive ?
Versa Rail is an ideal companion product to the Versa Lift because it mounts to the attic floor at the top of the folding attic stairs and provides a safe handrail for stepping up into and back down out of the attic when using the folding stairs.