{"product_id":"shademart-7-ft-x-21-ft-black-rectangle-sun-shade-sail-upf50","title":"ShadeMart 7 ft x 21 ft Black Rectangle Sun Shade Sail - UPF50","description":"\u003cp\u003eOur review of the ShadeMart 7 ft x 21 ft Black Rectangle Sun Shade Sail finds it best for homeowners and small businesses who need economical, durable sun protection for patios, carports and pools. The biggest reason to buy is its combination of heavy-duty woven HDPE fabric and UPF50 sun blocking that noticeably cuts temperature and UV exposure while remaining breathable and water permeable. Installation is straightforward with proper hardware, and the fabric build and stainless steel D rings feel built to last for typical outdoor use.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Woven HDPE fabric offers a durable, tear-resistant surface that stands up to daily sun exposure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUV Protection:\u003c\/strong\u003e Blocks up to 95% of harmful UV rays, reducing ambient temperature by roughly 10 to 15 degrees in direct sun.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBreathability:\u003c\/strong\u003e Water permeable and breathable construction allows rain and air to pass through, preventing pooling and improving comfort.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardware Ready:\u003c\/strong\u003e Stainless steel corner D rings attached to heavy duty webbing provide secure attachment points for standard shade sail kits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustom Sizes:\u003c\/strong\u003e Available in a selection of custom sizes so you can order dimensions that match patios, carports or pergolas when measured accurately.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThe ShadeMart rectangle sail is aimed at homeowners, landscapers and small businesses needing affordable, long-lasting sun coverage for outdoor living areas, poolside spaces and carports. Its breathable design and UPF50 shielding suit warm climates where airflow and UV protection are priorities.\u003c\/p\u003e\u003cp\u003eIt is not ideal for buyers who need a fully waterproof canopy or exact factory-cut precision where a mathematically perfect rectangle is critical; some customers report slight variations from perfect rectangular shape due to manual measurement and fabrication tolerances.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDurable woven HDPE fabric and stainless steel D rings offer reliable longevity in outdoor conditions.\u003c\/li\u003e\n\u003cli\u003eHigh UPF50 sun protection and measurable temperature reduction improve outdoor comfort.\u003c\/li\u003e\n\u003cli\u003eWater permeable design prevents water pooling and allows airflow for breathability.\u003c\/li\u003e\n\u003cli\u003eCustom sizing options fit a wide range of patios, carports and pergola layouts.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eNot waterproof, so it will not keep out heavy rain or serve as a full rain shelter.\u003c\/li\u003e\n\u003cli\u003eSome users note size or shape variation from perfect rectangle when manual measurements are used.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eShadeMart\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShape\u003c\/td\u003e\n\u003ctd\u003eRectangle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e7 ft x 21 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eWoven HDPE (High Density Polyethylene)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUV Blocking\u003c\/td\u003e\n\u003ctd\u003eUp to 95% (UPF50 level)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWater Resistance\u003c\/td\u003e\n\u003ctd\u003eWater permeable \/ not waterproof\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardware\u003c\/td\u003e\n\u003ctd\u003eStainless steel corner D rings with heavy duty webbing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe ShadeMart 7 ft x 21 ft rectangle sail is a practical purchase for anyone who wants effective sun and UV protection with good durability and airflow at a reasonable cost. It is good value for patios, carports and pool areas where waterproofing is not required, and the stainless steel fittings and heavy weave mean it should last multiple seasons when properly installed.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eIs this shade sail waterproof?\u003c\/strong\u003e\u003cbr\u003eNo, the fabric is water permeable and designed to allow water to pass through rather than serve as a waterproof canopy.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill it reduce temperature under the sail?\u003c\/strong\u003e\u003cbr\u003eYes, the UPF50 fabric blocks most sunlight and typically lowers ambient temperature by about 10 to 15 degrees in direct sun.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I attach it to walls, trees or poles?\u003c\/strong\u003e\u003cbr\u003eYes, with the proper hardware kits the stainless steel D rings allow attachment to poles, trees, roofs or walls; measure your site carefully before ordering.\u003c\/p\u003e","brand":"ShadeMart","offers":[{"title":"Default Title","offer_id":48239493939419,"sku":"B0B69YSJ1P","price":100.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/81KPSgNRfmL._AC_SL1500_b6fdcd8a-db19-4a9e-a6a9-4577ccc37d10.jpg?v=1771070595","url":"https:\/\/gearmusthave.com\/products\/shademart-7-ft-x-21-ft-black-rectangle-sun-shade-sail-upf50","provider":"GearMustHave","version":"1.0","type":"link"}