Accessorize your Palram greenhouse with this Twin Shelf Kit. Save floor space and make your nursery as functional as possible. These shelves are constructed from easy-to-clean PVC plastic and galvanized steel brackets and fasteners. Each shelf is capable of supporting up to 44 pounds and easily mounts on to your greenhouse frame. These shelves can be quickly dismounted in order to hose down any excess plant and soil debris that may collect.