{"product_id":"custom-size-16-ft-x-21-ft-white-rectangle-sun-shade-sail-tight-fit","title":"Custom Size 16 ft x 21 ft White Rectangle Sun Shade Sail - Tight Fit","description":"\u003cp\u003eOur review of this custom size 16 ft x 21 ft white rectangle sun shade sail finds it best suited to homeowners and small businesses needing a large, tailored canopy for outdoor areas. The single biggest reason to buy is the made-to-measure construction: measurements taken corner to corner and curved edges that keep the fabric tensioned mean fewer mid-season adjustments and a neater appearance than off-the-shelf sails. For anyone who wants strong UV protection and a custom fit for patios, pools, carports, or balconies, this shade sail delivers consistent performance.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade for a Perfect Fit:\u003c\/strong\u003e Corner-to-corner measurements and precision curved edges prevent sagging and maintain a clean, tight look across the whole canopy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable UV-Blocking Material:\u003c\/strong\u003e Virgin polyethylene construction provides lightweight strength while blocking up to 95% of UV rays and reducing visibility by about 90% for added privacy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAll-Season Use:\u003c\/strong\u003e Designed to give sun protection in summer, reduce frost at night, and shed light rain, making it useful year-round on patios and pools.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustom Sizes Available:\u003c\/strong\u003e Each sail is made locally to order so the final piece can match nonstandard spaces and mounting points more accurately than standard sizes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-Year Limited Warranty:\u003c\/strong\u003e Built for long-term outdoor exposure and backed by a warranty that offers reasonable peace of mind for most residential uses.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe sail is ideal for homeowners, renters with permitted fixtures, and small businesses who need a large, tailored shade over patios, driveways, carports, pools, gardens, or balconies. It fits customers who value measured fits and a clean, tensioned appearance and who want strong \u003cstrong\u003eUV protection\u003c\/strong\u003e without a heavy permanent structure.\u003c\/p\u003e\n\u003cp\u003eThose who should look elsewhere include buyers needing complete waterproof canopies for heavy downpours or people unwilling to plan accurate corner-to-corner measurements; installation effort and correct anchoring matter for a proper fit, and some customers reported mixed installation experiences.\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\u003eCustom measurement process and curved edges yield a tight, sag-free installation when fitted correctly.\u003c\/li\u003e\n\u003cli\u003eThe virgin polyethylene fabric is lightweight yet strong and blocks most UV rays for cooler shaded areas.\u003c\/li\u003e\n\u003cli\u003eVersatile all-season performance and local custom manufacturing reduce lead-time surprises for many buyers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInstallation can be mixed in difficulty for DIYers; correct measurements and anchoring are important to avoid sag or uneven tension.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eRectangle sun shade sail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e16 ft x 21 ft (custom made)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eVirgin polyethylene\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUV Protection\u003c\/td\u003e\n\u003ctd\u003eBlocks up to 95% of UV rays\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVisibility Reduction\u003c\/td\u003e\n\u003ctd\u003eApproximately 90%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e3-year limited warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThis custom 16 ft x 21 ft white rectangle shade sail is a solid value for those who need measured, reliable sun protection and privacy over sizable outdoor spaces. Its durable virgin polyethylene fabric and curved-edge design keep the canopy tensioned and effective for seasons of use; buy it if you can provide accurate corner-to-corner measurements and secure anchor points.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this shade sail block heat?\u003c\/strong\u003e\u003cbr\u003eThe fabric blocks up to 95% of UV rays and significantly reduces direct sunlight, which helps lower radiant heat in the shaded area.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it waterproof?\u003c\/strong\u003e\u003cbr\u003eThe sail offers light rain coverage but is not designed as a fully waterproof canopy for heavy downpours.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I order a different size?\u003c\/strong\u003e\u003cbr\u003eYes, all sizes are custom-made locally to fit your specified corner-to-corner measurements.\u003c\/p\u003e","brand":"SHADESPEARE","offers":[{"title":"Default Title","offer_id":48188699410651,"sku":"B09J3H5D5W","price":178.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/81xXAnT3ocL._AC_SL1500_b4df10a7-c73a-4fc4-afef-fef6e2efa37d.jpg?v=1769451119","url":"https:\/\/gearmusthave.com\/products\/custom-size-16-ft-x-21-ft-white-rectangle-sun-shade-sail-tight-fit","provider":"GearMustHave","version":"1.0","type":"link"}