Need something to cover patio-awning, gazebo, sail shade, etc I m seeking a cover of some sort to provide protection from rain over outdoor cat litter boxes. Ideal would be the retractable awnings (sunsetter etc). A pop up canopy, gazebo, or tarp/ area shade will work. 2 areas to cover, Each needs to be at least 4-5 feet wide. Up to 10-14 feet is ok. Thank you!