The Commercial Four-Head Cantilever Aluminum Patio Umbrella (model FH-CANT-ALU-4000, unbranded) features a symmetrical multi-canopy layout anchored by a single central vertical mast, with four cantilevered canopies extending outward to form an 8000mm by 8000mm installed footprint reaching 3200mm at its highest point. Each canopy measures 4000mm in diameter, with a 200mm vertical valence, 2200mm edge clearance above finished flooring, and a central hub positioned 2800mm above ground, creating a unified 64sqm contiguous shade zone. Its frame is constructed from powder-coated, rust-resistant aluminum alloy: the central pole has a 93x93mm cross-section with 2.0mm wall thickness, cross support beams measure 69x69mm with 2.5mm wall thickness for rigid bracing, and cantilever ribs use 20x30mm sections with welded, matte-finished joints. Hardware includes corrosion-resistant 304 stainless steel bolts, lock levers, and crank mechanisms, paired with die-cast aluminum joint brackets, nylon wear bushings, and anti-rotation pins, with M6 to M10 connectors at major joints. The 280g/sqm solution-dyed polyester canopy features a PU waterproof backing, UV inhibitor treatment, 1000mm hydrostatic head water repellency, and UPF 50+ UV protection. A solid round natural stone composite base with 1000mm diameter, matte gray finish, and non-slip bottom pad anchors the unit, bringing total set weight to 200kg for a 74km/h static wind resistance rating when properly secured. Functional features include manual 360-degree mast rotation with 8 lock positions for full perimeter sun tracking, independent 45-degree tilt adjustment for each canopy with lever locks, and per-canopy crank deployment that opens each unit in 10 seconds with an auto-lock feature. Canopies attach via Velcro and snaps for easy removal and machine washing, the segmented base requires no special tools for assembly, and arms fold vertically against the mast for compact off-season storage. Six finish options are available to match different design schemes. The umbrella is suited for commercial restaurant patios, where it shades six four-seat dining tables; hotel courtyards and poolside areas supporting multiple lounge groups; temporary outdoor events and exhibitions with freestanding, quick setup; open sidewalk cafe seating; and resort dining terraces with fade-resistant fabric for long-term use. For procurement, note units ship as one set across two cartons, with 0.8m³ packaging volume, 120kg packaged weight, and 40-minute assembly time. Each rib supports a maximum 25kg static load, and replacement canopies are compatible for long-term maintenance planning.