The Square Double-Vent Cantilever Patio Umbrella with Scalloped Valance and Weighted Base is a robust unbranded cantilever outdoor shade solution, model CPU-SQ30-BURG-SVAL-BASE, engineered for stable, adjustable coverage across residential and commercial outdoor settings. Visually, it features a crisp square canopy finished with a decorative scalloped valance trimmed in white contrast piping backed with black edging, paired with an offset support structure that eliminates central obstructions beneath the shade area. Its frame combines an off-white powder-coated aluminum alloy main vertical pole, black electrostatic powder-coated aluminum alloy support ribs and brackets, and 304 stainless steel fastening hardware, finished with a textured gray rectangular weighted stone/concrete composite base for low-profile, secure stabilization. The 280g/m² polyester canopy includes a PA water-resistant coating, a matching mesh-backed 750mm square top vent panel, and 150mm tall valance, designed to deliver UPF 50+ UV protection, 300mm water column resistance, and reliable wind pass-through via its double-vent design that reduces canopy lift. Operable features support flexible, user-friendly shade adjustment: a hand crank lift system with 8-position locking enables smooth full deployment or retraction, a foot-pedal control enables 360-degree canopy rotation without repositioning the base, and 5-position incremental tilt adjusts shade angle to track shifting sun positions across the day. The detachable canopy secures via rib-end pockets for easy seasonal removal and cleaning, while high-temperature electrostatic powder coating on all metal frame components prevents outdoor rust for extended service life, backed by a 3-year fabric fade resistance warranty. The unit carries a recommended safe wind speed rating of Beaufort scale 5, with a support arm static load capacity of 50kg, supported by its 210kg weighted base and 25.8kg frame structure. It is well suited for residential backyard patio dining sets, sidewalk cafes, restaurant patios, poolside lounge areas, outdoor security booths, entry gate stations, and garden leisure zones in temperate and subtropical climates with regular sun exposure and light rain. Procurement teams should note the unit ships as one set across two cartons, with a packaged gross weight of 120kg, 0.8 cubic meters total packaging volume, and a 40-minute reference assembly time. All major joints include at least two fixing points with M6 to M10 hardware, with 5mm operating clearance for moving parts and 40mm primary component thickness aligned to load-bearing requirements, to support long-term reliable outdoor use.