This is an intelligently designed gazebo replacement canopy top cover for most standard 10' x 10' two-tiered gazebos. This 10' x 10' durable polyvinyl top cover has a two-tier ventilated top construction. The top tier measures 36" x 36". The opening of the bottom tier is 25" x 25". Between the top tier and bottom tier is a functional mosquito netting that allows the canopy to expand upwards and to allow wind gusts. This expansion capability allows this canopy to fit two-tiered 10' x 10' (120" x 120") gazebos.