{"product_id":"custom-size-21-ft-triangle-sun-shade-sail-cool-uv50-protection","title":"Custom Size 21 ft Triangle Sun Shade Sail - Cool UV50+ Protection","description":"\u003cp\u003eIn this review of the custom size 21 ft triangle sun shade sail, the bottom line is simple: this is a practical option for anyone who wants serious sun protection and a cooler outdoor space without permanent construction. The sail is aimed at homeowners and small businesses who need a tailored canopy solution that blocks the sun and reduces temperature, and the most compelling reason to buy is its combination of durable 200 GSM fabric and verified 95% UV blockage that delivers reliable shade and longevity in regular outdoor conditions.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e95% Sun Protection:\u003c\/strong\u003e The fabric blocks up to 95% of harmful UV rays, providing safer shade for patios, play areas, and outdoor seating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e200 GSM HDPE Construction:\u003c\/strong\u003e Commercial-grade material gives durable performance and resists fraying thanks to reinforced edges and double-layer stitching.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Reduction:\u003c\/strong\u003e The sail can lower ambient temperatures by up to 15 degrees compared with unshaded areas, improving comfort on hot days.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy Installation:\u003c\/strong\u003e Mounting is flexible - attach to trees, roofs, walls or poles and leave at least 0.5 ft gap between D-rings and poles for best performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustom Fit Available:\u003c\/strong\u003e The product is ordered to make from D-ring to D-ring measurements so the sail can match your specific layout and edge preference.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurability \u0026amp; Hardware:\u003c\/strong\u003e Stainless steel D-rings and reinforced hems promise longer life, and a 3 year assurance gives added confidence.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThe shade sail is ideal for homeowners with patios, gardens or poolside seating who want a removable, breathable canopy that reduces sun exposure and temperature without blocking airflow. It also suits small cafes, daycare outdoor areas or event spaces where a triangular sail can be tensioned between existing anchor points.\u003c\/p\u003e\u003cp\u003ePeople who need a rigid, waterproof canopy or who cannot provide secure anchor points should look elsewhere; this product is water and air permeable by design and relies on correct spacing and tension for best performance. If you need very precise off-the-shelf dimensions without customization, a standard pre-sized product might be a simpler choice.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eStrong UV protection and temperature reduction make it effective for cooling outdoor spaces.\u003c\/li\u003e\n\u003cli\u003eCommercial 200 GSM HDPE fabric with reinforced stitching and stainless D-rings improves longevity.\u003c\/li\u003e\n\u003cli\u003eCustom sizing from D-ring to D-ring helps achieve a tailored fit for irregular spaces.\u003c\/li\u003e\n\u003cli\u003eInstallation is flexible and straightforward when following recommended gaps and anchor spacing.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSome buyers report sizing feels smaller than expected, so careful measuring is essential before ordering.\u003c\/li\u003e\n\u003cli\u003eBecause the fabric is breathable, it is not fully waterproof and will allow some water and airflow through.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eShape\u003c\/td\u003e\n\u003ctd\u003eTriangle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e21 ft x 21 ft x 21 ft (custom order)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e200 GSM HDPE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUV Blockage\u003c\/td\u003e\n\u003ctd\u003eUp to 95%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Reduction\u003c\/td\u003e\n\u003ctd\u003eUp to 15 degrees vs unshaded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardware\u003c\/td\u003e\n\u003ctd\u003eStainless steel D-rings, reinforced edges\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e3 year assurance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eFor anyone needing a durable, breathable shade solution that actually cools outdoor spaces and blocks most UV, this custom 21 ft triangle sail is a sensible purchase. It balances commercial-grade materials and adjustable installation with a clear limitation that it is not fully waterproof and requires accurate measuring, but its durability and customization make it good value for patios and outdoor seating areas.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eIs this sail waterproof?\u003c\/strong\u003e\u003cbr\u003eAnswer. The fabric is water and air permeable, so it will not be fully waterproof but sheds some moisture while allowing airflow.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow should I measure for a custom fit?\u003c\/strong\u003e\u003cbr\u003eAnswer. Measure from D-ring to D-ring for each side and allow the recommended gap of at least 0.5 ft between D-rings and poles or reduce by 1 to 1.5 ft per side as needed for tensioning.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow durable is the hardware?\u003c\/strong\u003e\u003cbr\u003eAnswer. The sail uses stainless steel D-rings and reinforced edges with double-layer stitching, and it comes with a 3 year assurance for typical outdoor use.\u003c\/p\u003e","brand":"Amgo","offers":[{"title":"Default Title","offer_id":48191803457755,"sku":"B0C1MGPCL4","price":134.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/91Bv8urtkAL._AC_SL1500_25e73b83-9c83-4f43-ba30-a768309a2950.jpg?v=1770232727","url":"https:\/\/gearmusthave.com\/products\/custom-size-21-ft-triangle-sun-shade-sail-cool-uv50-protection","provider":"GearMustHave","version":"1.0","type":"link"}