{"product_id":"shademart-8-ft-x-21-ft-green-rectangle-sun-shade-sail-upf50","title":"ShadeMart 8 ft x 21 ft Green Rectangle Sun Shade Sail - UPF50","description":"\u003cp\u003eIn this review the ShadeMart 8 ft x 21 ft green rectangle sun shade sail is assessed for homeowners and small-business owners wanting reliable sun protection without a solid canopy. The bottom line: this woven HDPE fabric sail blocks up to 95% of UV rays and noticeably reduces temperature under the canopy, making it a practical, breathable solution for patios, carports, pool areas and temporary outdoor covers. The review focuses on material, functionality and real-world durability to help decide if a fabric sail is the right choice for your space.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMATERIAL:\u003c\/strong\u003e Woven HDPE fabric delivers a tough, tear-resistant surface that stands up to regular outdoor use while remaining lightweight to handle and install easily.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUV PROTECTION:\u003c\/strong\u003e Rated to block up to 95% of harmful UV rays, the sail provides strong sun protection that reduces temperatures under the canopy by roughly 10 to 15 degrees.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBREATHABILITY:\u003c\/strong\u003e Water permeable and breathable construction allows air and rain to pass through, preventing pooling and improving comfort on hot days.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHARDWARE:\u003c\/strong\u003e Stainless steel D-rings attached to heavy-duty white webbing give sturdy anchor points that simplify attachment when paired with proper hardware kits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCUSTOM SIZING:\u003c\/strong\u003e Available in a range of sizes and customizable dimensions so you can pick a sail closer to your exact space, with the caveat to measure carefully.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSTYLE:\u003c\/strong\u003e Rectangle shape in multiple colors offers a decorative option that integrates with an outdoor design while providing practical shade.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThe ShadeMart rectangle shade sail is best for homeowners, renters and small businesses that need flexible sun protection for patios, carports, pergolas and poolside areas and prefer a breathable, water-permeable fabric rather than a waterproof roof. It is also suitable for DIY installers who will pair the sail with a hardware kit and have anchor points like posts, walls or trees.\u003c\/p\u003e\u003cp\u003ePeople who require a fully waterproof canopy or an exact factory-cut rigid rectangle should look elsewhere; the sail is not waterproof and manual measurement variations mean the shape can be slightly off for some installs. If you need guaranteed precise dimensions for a bespoke structure, a rigid canopy or professional measurement service is the better 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\u003eHigh UV blocking power and a measurable drop in temperature beneath the sail.\u003c\/li\u003e\n\u003cli\u003eDurable woven HDPE construction with stainless steel D-rings for secure anchoring.\u003c\/li\u003e\n\u003cli\u003eBreathable, water-permeable fabric prevents water pooling and improves airflow.\u003c\/li\u003e\n\u003cli\u003eAvailable in custom sizes and several colors to match outdoor decor.\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 areas dry in heavy rain.\u003c\/li\u003e\n\u003cli\u003eSize and exact shape can vary due to manual measurements and fabric stretch, so precise installations may need adjustments.\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\u003e8 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\u003eHardware\u003c\/td\u003e\n\u003ctd\u003eStainless steel D-rings with heavy-duty webbing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunctionality\u003c\/td\u003e\n\u003ctd\u003eWater permeable, breathable, blocks up to 95% UV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCustom Options\u003c\/td\u003e\n\u003ctd\u003eCustom sized sails available\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe ShadeMart 8 ft x 21 ft rectangle shade sail is a solid value for anyone seeking strong sun protection with breathability and easy handling. It performs well for patios, carports and poolside shade, resisting wear while lowering temperatures beneath the canopy; just be aware it is not waterproof and exact dimensions can vary. For breathable, cost-effective UV protection and a decorative outdoor upgrade, this sail is worth considering.\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 breathable, so it allows water to pass through rather than providing a waterproof cover.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I attach the sail to walls, posts or trees?\u003c\/strong\u003e\u003cbr\u003eYes. With proper hardware kits the sail can be attached to poles, trees, walls or roofs using the stainless steel D-rings and webbing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much UV protection does the fabric provide?\u003c\/strong\u003e\u003cbr\u003eThe woven HDPE material blocks up to 95% of harmful UV rays and typically lowers temperatures under the sail by around 10 to 15 degrees.\u003c\/p\u003e","brand":"ShadeMart","offers":[{"title":"Default Title","offer_id":48652948898011,"sku":"B0B69XGLV3","price":114.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/91nNgYfANXL._AC_SL1500_efd90c64-9ddf-4984-90e0-cdfd3246ab39.jpg?v=1778655381","url":"https:\/\/gearmusthave.com\/products\/shademart-8-ft-x-21-ft-green-rectangle-sun-shade-sail-upf50","provider":"GearMustHave","version":"1.0","type":"link"}