{"product_id":"cool-area-sun-shade-sail-11x18x21-1-ft-right-triangle-solid-uv","title":"Cool Area Sun Shade Sail 11x18x21.1 ft Right Triangle - Solid UV","description":"\u003cp\u003eOur review of the Cool Area Sun Shade Sail 11x18x21.1 ft finds it best for homeowners and renters who need a straightforward, heavy-duty triangle shade to cool a patio or pool area. The single biggest reason to buy is the full-piece HDPE construction that provides consistent \u003cstrong\u003eUV shading\u003c\/strong\u003e and an uncluttered look; there are no spliced seams so the sail hangs smoothly and shades evenly. Installation requires leaving 0.5-1 ft for hardware and allowance for the fabric's elasticity, but once tensioned the shade delivers reliable coverage and improved comfort outdoors.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-piece construction:\u003c\/strong\u003e A whole shade fabric triangle with no splicing gap provides cleaner aesthetics and more even shading across the whole sail.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh density HDPE fabric:\u003c\/strong\u003e Made from 100% new HDPE with about 85%-90% shading rate, it blocks a large portion of direct sunlight for a cooler space.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e95% UV protection:\u003c\/strong\u003e The fabric reduces UV exposure, helping protect people and surfaces beneath the sail.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReinforced edges and D-rings:\u003c\/strong\u003e Reinforced stitched seams and rust-proof stainless steel D-rings at each corner improve durability and make installation points secure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize tolerance noted:\u003c\/strong\u003e The material has about a 4 in tolerance due to elasticity and needs 0.5-1 ft extra for accessories when planning mounting points.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile use:\u003c\/strong\u003e Designed for patios, pergolas, decks, pools, carports and balconies, it adapts to many outdoor shading needs.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThe Cool Area triangle shade is ideal for homeowners or renters who want a simple, effective way to reduce sun and heat on a patio, over a seating area, or above a small pool without visible seams. It works well for people who prefer a clean look and need a durable fabric that resists fraying thanks to reinforced seams.\u003c\/p\u003e\u003cp\u003eIt is less suitable for those who require precise, rigid sizing or a perfectly taut installation without accommodating the stated 4 in tolerance and the 0.5-1 ft space needed for mounting hardware. Buyers who need a fully watertight canopy or custom rigid frame should consider other products.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eEffective sun and UV protection from high density HDPE fabric.\u003c\/li\u003e\n\u003cli\u003eNo splicing seams for a neater appearance and consistent shading performance.\u003c\/li\u003e\n\u003cli\u003eDurable construction with reinforced edges and stainless steel D-rings for reliable anchoring.\u003c\/li\u003e\n\u003cli\u003eVersatile for multiple outdoor settings including patios, decks and pools.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFabric elasticity means a tolerance of about 4 in, which requires planning when measuring and installing.\u003c\/li\u003e\n\u003cli\u003eNot designed to be fully waterproof, so it will not keep a space dry in rain.\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\u003eRight triangle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e11 x 18 x 21.1 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eHigh density 100% new HDPE fabric\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShading rate\u003c\/td\u003e\n\u003ctd\u003eAbout 85%-90%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUV protection\u003c\/td\u003e\n\u003ctd\u003eUp to 95%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardware\u003c\/td\u003e\n\u003ctd\u003eRust-proof stainless steel D-rings at corners\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEdge construction\u003c\/td\u003e\n\u003ctd\u003eReinforced stitched seams\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe Cool Area Sun Shade Sail 11x18x21.1 ft is a solid value for anyone wanting a clean-looking, durable triangle shade that blocks sun and reduces heat. Its one-piece HDPE fabric and reinforced construction make it a practical choice for patios, pools and decks, provided buyers allow the stated tolerance and space for mounting hardware during installation.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eHow much extra space is needed for installation?\u003c\/strong\u003e\u003cbr\u003eYou should leave about 0.5-1 ft extra at mounting points to allow room for accessories and proper tensioning.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the shade waterproof?\u003c\/strong\u003e\u003cbr\u003eNo, the HDPE fabric is designed for sun and UV protection and shading, not to be fully waterproof.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the color fade in sun?\u003c\/strong\u003e\u003cbr\u003eCustomers report good color longevity in direct sunlight, but like all fabrics some fading over long exposure is possible.\u003c\/p\u003e","brand":"Cool Area","offers":[{"title":"Default Title","offer_id":48649413099739,"sku":"B0CRKY3B1N","price":91.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71vkBf01pML._AC_SL1500_4ec7e151-17d6-4a32-a010-dbbedc9108a3.jpg?v=1778573929","url":"https:\/\/gearmusthave.com\/products\/cool-area-sun-shade-sail-11x18x21-1-ft-right-triangle-solid-uv","provider":"GearMustHave","version":"1.0","type":"link"}