{"product_id":"shademart-17-ft-x-23-ft-black-sun-shade-sail-upf50-rectangle-heavy","title":"ShadeMart 17 ft x 23 ft Black Sun Shade Sail UPF50 Rectangle - Heavy","description":"\u003cp\u003eIn this review the ShadeMart 17' x 23' black rectangle sun shade sail earns a recommendation for homeowners and RV owners who need a large, durable canopy that blocks sun and lowers temperatures. The single biggest reason to buy is its effective sun protection: the woven HDPE fabric blocks up to 95% of harmful UV and cuts temperature in the shaded area by roughly 10 to 15 degrees, making it a practical choice for patios, carports, and outdoor vehicle cover. The reviewer found the materials and construction focused on durability and weather performance rather than being fully waterproof.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWoven HDPE fabric:\u003c\/strong\u003e The high density polyethylene weave provides a breathable screen that blocks UV while allowing air and water to pass through, reducing heat buildup under the canopy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless steel corner D-rings:\u003c\/strong\u003e Rust-resistant D-rings at each corner simplify attachment to posts, trees, or walls and hold up in damp conditions without corroding.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReinforced double webbing:\u003c\/strong\u003e All edges are finished with double layered stitched seams to prevent fraying and improve long-term tension under load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignificant UV protection:\u003c\/strong\u003e With up to 95% UV blockage the sail noticeably lowers sun exposure, making it useful for shading patios, pools, and vehicles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater and air permeable:\u003c\/strong\u003e The fabric sheds heavy pooling by letting water pass through and keeps airflow, so it performs well in rain without acting as a solid roof.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustom sizing available:\u003c\/strong\u003e A range of custom sizes is offered so customers can match unique venues, provided they measure carefully before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe ShadeMart 17' x 23' rectangle sail is best for homeowners, RV owners, and small business outdoor spaces that need large-area shade and UV protection without a permanent roof. It suits people who value breathability and reduced temperature rather than complete waterproofing, and those who can install attachment points like posts or wall anchors.\u003c\/p\u003e\n\u003cp\u003eIt is less suitable for buyers who need a fully waterproof canopy or a small, portable sunshade for occasional use; those customers should consider solid tarp-style covers or smaller portable umbrellas. Also, precise measuring and basic hardware or a kit are required for a good installation.\u003c\/p\u003e\n\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBuilt with woven HDPE and reinforced seams for long-lasting sun resistance and reduced fraying.\u003c\/li\u003e\n\u003cli\u003eStainless steel D-rings resist rust and make attachment straightforward.\u003c\/li\u003e\n\u003cli\u003eEffectively blocks up to 95% of UV and lowers shaded temperatures by about 10 to 15 degrees.\u003c\/li\u003e\n\u003cli\u003eBreathable, water-permeable design helps avoid pooled water during rain.\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 out heavy rain if a dry cover is required beneath.\u003c\/li\u003e\n\u003cli\u003eColor options and exact fit can vary; customers report color mix feedback and must measure carefully for custom sizes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\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\u003e17' x 23'\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\u003eCorner Hardware\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\u003eUV Protection\u003c\/td\u003e\n\u003ctd\u003eBlocks up to 95% of UV rays (UPF50)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePermeability\u003c\/td\u003e\n\u003ctd\u003eWater and air permeable (not waterproof)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe ShadeMart 17' x 23' rectangle sun shade sail is a solid value for anyone needing durable, large-area UV protection that also breathes and sheds water. Its reinforced edges and stainless steel D-rings translate to reliable performance in wind and sun, while the custom size option helps fit unusual spaces. Buy this if you want strong sun protection and reduced temperatures outdoors; look elsewhere if you require a fully waterproof canopy.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs this shade sail waterproof?\u003c\/strong\u003e\u003cbr\u003eThe fabric is water and air permeable, so it is not waterproof and will allow water to pass through rather than creating a dry roof.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill the hardware resist rust?\u003c\/strong\u003e\u003cbr\u003eYes, the corners use stainless steel D-rings which are rust resistant and attached to heavy duty webbing for durability.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I order a different size?\u003c\/strong\u003e\u003cbr\u003eShadeMart offers custom sizes, but accurate measurements are important since shade sails may vary slightly due to manual measurement during production.\u003c\/p\u003e","brand":"ShadeMart","offers":[{"title":"Default Title","offer_id":48188423012571,"sku":"B0B1HCVTJB","price":195.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/81KPSgNRfmL._AC_SL1500_5d10f1f7-4a1d-4b72-be5e-80daca5a1736.jpg?v=1769707827","url":"https:\/\/gearmusthave.com\/products\/shademart-17-ft-x-23-ft-black-sun-shade-sail-upf50-rectangle-heavy","provider":"GearMustHave","version":"1.0","type":"link"}