{"product_id":"shademart-21-ft-x-24-ft-grey-rectangle-sun-shade-sail-upf50-coverage","title":"ShadeMart 21 ft x 24 ft Grey Rectangle Sun Shade Sail - UPF50 Coverage","description":"\u003cp\u003eIn this review of the ShadeMart 21' x 24' grey rectangle sun shade sail, the bottom line is straightforward: this is a practical, heavy-duty shade solution for patios, carports, pools and boats where UV protection and airflow matter most. The reviewer found the woven HDPE fabric blocks up to 95% of harmful UV rays while remaining water permeable and breathable, so it cools the covered area without trapping rain. If you need a large, sturdy canopy that straps to posts, walls or trees and can be custom sized, this sail is worth considering.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWoven HDPE fabric:\u003c\/strong\u003e provides durable sun protection while remaining breathable so heat does not build up under the sail.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPF50 sun blocking:\u003c\/strong\u003e blocks up to 95% of harmful UV rays which helps lower temperatures under the sail by roughly 10 to 15 degrees.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless steel D rings:\u003c\/strong\u003e heavy duty corner D rings attached to white webbing give secure anchor points and resist corrosion outdoors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater permeable:\u003c\/strong\u003e the sail sheds rain by allowing water to pass through the weave rather than pooling on the fabric surface.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustom sizing available:\u003c\/strong\u003e multiple custom sizes allow fitting to irregular venues, provided you measure the installation area accurately.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile mounting:\u003c\/strong\u003e with appropriate hardware the sail can be attached to poles, walls, roofs or trees for patios, carports and pool areas.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis shade sail is best for homeowners or small business owners who want a large, breathable canopy for outdoor living spaces, carports, boat covers or poolside shade. It suits people who value UV protection and airflow over full waterproofing and who have anchor points like posts, walls or trees available.\u003c\/p\u003e\n\u003cp\u003eThose seeking a fully waterproof shelter, or a rigid structure for extreme weather, should look elsewhere; this style is explicitly water permeable and not designed to stop heavy rain from passing through. Buyers should also be prepared to measure carefully if ordering a custom size to ensure proper fit.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDurable woven HDPE fabric that holds up in wind and resists tearing.\u003c\/li\u003e\n\u003cli\u003eHigh UV protection up to 95% which noticeably cools shaded areas.\u003c\/li\u003e\n\u003cli\u003eStainless steel D rings and heavy webbing provide reliable anchoring points.\u003c\/li\u003e\n\u003cli\u003ePermeable design prevents water pooling and allows airflow beneath the sail.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNot waterproof, so it will not keep an area dry during steady rain.\u003c\/li\u003e\n\u003cli\u003eSizing can vary slightly due to manual measurements, so accurate venue measuring is necessary.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\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\u003e21' x 24'\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 Protection\u003c\/td\u003e\n\u003ctd\u003eBlocks up to 95% (UPF50)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCorners\u003c\/td\u003e\n\u003ctd\u003eStainless steel D rings on heavy duty webbing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWater Performance\u003c\/td\u003e\n\u003ctd\u003eWater permeable and breathable (not waterproof)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe ShadeMart 21' x 24' grey rectangle sun shade sail is a practical, value-oriented choice for anyone who needs broad UV protection and airflow for patios, pools, carports or boats. It is well suited to outdoor areas with existing anchor points and offers sturdy hardware and fabric that customers report holds up in wind and hail. Choose this sail when cooling, durability and custom sizing are priorities rather than a waterproof canopy.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs this sail waterproof?\u003c\/strong\u003e\u003cbr\u003eNo. The fabric is water permeable and breathable, so it allows water to pass through rather than acting as a waterproof cover.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow much UV protection does it provide?\u003c\/strong\u003e\u003cbr\u003eThe sail blocks up to 95% of harmful UV rays (UPF50), which significantly lowers temperatures under the canopy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it be attached to trees or poles?\u003c\/strong\u003e\u003cbr\u003eYes. With the proper hardware kits it can be anchored to poles, trees, walls or roofs for patios, carports, pergolas and more.\u003c\/p\u003e","brand":"ShadeMart","offers":[{"title":"Default Title","offer_id":48258324988123,"sku":"B0B5M1H12C","price":227.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/816THzWgLIL._AC_SL1500_40941889-3a86-4596-9e2f-9c4564115016.jpg?v=1778294151","url":"https:\/\/gearmusthave.com\/products\/shademart-21-ft-x-24-ft-grey-rectangle-sun-shade-sail-upf50-coverage","provider":"GearMustHave","version":"1.0","type":"link"}