A drying apparatus for use with a laundry dryer includes a first section and a second section. Each section has a plurality of walls defining a cavity, the cavity comprising a portion of a channel for air flow. A first wall among the plurality of walls has a substantially flat exterior surface and a plurality of openings extending through the first wall from the exterior surface to the portion of the channel. The first section and the second section are configured to be disposed substantially adjacent to each other to form the channel. The first section comprises an air outlet cover at a first end, the air outlet cover configured to substantially cover an air outlet of the laundry dryer.