{"product_id":"custom-size-4-ft-x-18-ft-blue-waterproof-shade-sail-durable-upf50","title":"Custom Size 4 ft x 18 ft Blue Waterproof Shade Sail - Durable UPF50","description":"\u003cp\u003eIn this review of the ColourTree custom size 4 ft x 18 ft blue shade sail, the bottom line is clear: this is a strong, practical canopy for someone who needs reliable sun and rain protection without a complex installation. The reviewer found the single biggest reason to buy is the combination of a dense 220 GSM virgin polyethylene fabric with a waterproof coating and reinforced corners, which together deliver solid \u003cstrong\u003ewater resistance\u003c\/strong\u003e and long-term outdoor durability for patios, carports, or play areas.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e220 GSM Virgin Fabric:\u003c\/strong\u003e The thick, non-recycled polyethylene provides a sturdy base that resists sagging and stands up to regular outdoor use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaterproof Coating:\u003c\/strong\u003e A waterproof layer prevents water from passing through so it shelters furniture, turf, and people during light rain.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e316 Stainless Steel D-rings:\u003c\/strong\u003e Premium grade D-rings at each corner make mounting straightforward and resist corrosion in outdoor conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReinforced Stitching:\u003c\/strong\u003e Double-stitched finished edges reduce tear risk at stress points and help the corners hold tension over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPF50 Sun Protection:\u003c\/strong\u003e The dense weave and treatment block a high percentage of UV rays, keeping shaded areas noticeably cooler.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis shade sail is best for homeowners who want a tailored coverage solution for a narrow span such as a side yard, carport, balcony, or a long narrow patio where a standard size does not fit. It suits people who prefer low-maintenance fabric that blocks sun and sheds rain without constant care.\u003c\/p\u003e\u003cp\u003eIt is less well suited to those who need permanent hard structures, a fully sealed canopy for heavy storms, or a decorative solution where intricate shapes and trims matter more than performance. For large multi-panel installations, a bespoke fabricator or a rigid awning might be a 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 quality 220 GSM virgin polyethylene gives a robust feel and long life.\u003c\/li\u003e\n\u003cli\u003eWaterproof coating keeps areas dry and prevents water dripping through the sail.\u003c\/li\u003e\n\u003cli\u003e316 stainless steel D-rings and reinforced stitching make installation secure and corrosion resistant.\u003c\/li\u003e\n\u003cli\u003eEffectively blocks sun and helps keep surfaces like astroturf cooler underneath.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eThe sail is a fabric canopy and while water resistant, it is not a rigid shelter for heavy storms or prolonged standing water.\u003c\/li\u003e\n\u003cli\u003eCustom sizes require accurate measuring and planning before purchase to ensure the fit is correct.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eWaterproof sun shade sail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e4 ft x 18 ft (custom size)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e220 GSM pure virgin polyethylene fabric\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUV Protection\u003c\/td\u003e\n\u003ctd\u003eUPF50, 95% UV block\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWaterproof\u003c\/td\u003e\n\u003ctd\u003eWaterproof layer coated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardware\u003c\/td\u003e\n\u003ctd\u003e316 stainless steel D-rings at each corner\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeams\u003c\/td\u003e\n\u003ctd\u003eDouble reinforced stitched edges\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe ColourTree 4 ft x 18 ft blue waterproof shade sail is a practical, well-constructed option for anyone needing a custom-length canopy that blocks sun and sheds rain. With heavy-duty 220 GSM fabric, waterproof coating, and stainless steel hardware, it offers excellent value for outdoor shading where a simple fabric solution is preferred over a permanent structure.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eIs this shade sail fully waterproof?\u003c\/strong\u003e\u003cbr\u003eYes, it has a waterproof layer coating so water will not pass through in typical rain, though it is still a fabric canopy rather than a rigid roof.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat hardware is included for installation?\u003c\/strong\u003e\u003cbr\u003eThe sail includes premium grade 316 stainless steel D-rings at each corner to attach to hooks, poles, or tie lines; additional fasteners are not included.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes it block UV rays?\u003c\/strong\u003e\u003cbr\u003eYes, the fabric is treated and rated to block approximately 95% of UV, providing UPF50 protection.\u003c\/p\u003e","brand":"ColourTree","offers":[{"title":"Default Title","offer_id":48239252865243,"sku":"B082NS66J8","price":153.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/91mpzTrwf4L._AC_SL1500_f99cb867-cc22-4273-a515-faebd4d7c52b.jpg?v=1770928565","url":"https:\/\/gearmusthave.com\/products\/custom-size-4-ft-x-18-ft-blue-waterproof-shade-sail-durable-upf50","provider":"GearMustHave","version":"1.0","type":"link"}