Anchoring a backyard with 120 square feet of adjustable cover, this metal pergola pairs a bolted-down frame with a canopy that moves when the sun does. Triangle-braced posts, broad pre-drilled footplates and 16 ground nails tie the structure to lawn or decking, so it stays put on windy afternoons. Overhead, a 17.7-ft yarn panel slides along the beam on handles and buckle locks, dialing coverage from open sky to deep midday shade. The 180 g polyester weave resists fading, sheds light rain and carries a CPAI-84 flame-retardant rating, while the curved beam keeps water from pooling overhead.