This universal gazebo replacement canopy top cover fits most standard 12" x 12" square two-tiered gazebos. * Durable 180g per square meter poly spun top cover with two-tier ventilated top construction (on average 30% thicker than original canopies). * The top tier measures 36" x 36". The outer perimeter of the main canopy is 144" x 144". * Polymer coating for protection against UV rays from sun and increased durability. * Mosquito net lining between top and bottom tier. * Velcro straps allow easy installation and attachment to gazebo. * Anti-rust brass grommet rings to ensure proper water drainage. * Designed for a square gazebo, not a hexagon gazebo.