ShadeMart 11ft x 13ft Black Sun Shade Sail UPF50 Rectangle - Cooling

Our review of the ShadeMart 11' x 13' Black Sun Shade Sail finds it best suited to homeowners and small businesses seeking a durable, breathable canopy that meaningfully reduces heat outdoors. The single biggest reason to buy is its combination of woven HDPE construction and stainless steel corner D rings, which deliver a UPF50 blocking capability and rugged attachment points for long-term outdoor use. It is not waterproof but it is designed to let water and air pass through while cutting sunlight and UV exposure, making it a practical choice for patios, carports and poolside shade.

Key Features

• Woven HDPE fabric: the high density polyethylene construction provides strength and breathability so the sail resists tearing while allowing airflow.
• UPF50 sun protection: blocks up to 95% of harmful UV rays to lower ambient temperatures and protect skin and furnishings from sun damage.
• Stainless steel D rings: heavy duty corner hardware attached to strong white webbing gives secure anchor points when used with proper hardware kits.
• Water permeable design: the sail lets rainwater pass through rather than ponding, reducing strain on the fabric and supporting structure.
• Rectangle styling and color options: a clean rectangular shape integrates easily with patios, pergolas and carports and offers simple, decorative shade.

Who It's For

The ShadeMart rectangle sail is ideal for DIY homeowners who want a reliable, budget-friendly canopy for patios, decks, carports, pool areas or garden seating. Its breathable HDPE fabric and stainless steel D rings make it a solid option for locations where wind and occasional storms are a factor and where waterproofing is not required.

Customers who need a fully waterproof cover, a precise machine-cut rectangle every time, or who cannot install permanent anchor points should look elsewhere. Also measure your space carefully before ordering since custom sizing is available but the sail may vary slightly due to manual measurements.

Pros & Cons

Pros

• Durable woven HDPE resists wear and provides long-term sun protection.
• Blocks up to 95% of UV rays and can lower temperatures noticeably in shaded areas.
• Stainless steel D rings and heavy webbing create secure mounting points for common hardware kits.
• Water permeable design prevents ponding and improves airflow.

Cons

• Not waterproof, so it will not keep out heavy rain or create a dry shelter.
• Size and shape may vary slightly due to manual measurements, so careful measuring is required.

Specifications

Our Verdict

The ShadeMart 11' x 13' rectangle shade sail is a sensible purchase for anyone needing effective sun protection and airflow in outdoor living areas. It delivers strong UV blocking, durable mounting hardware and breathability at a reasonable value, but it is not a waterproof shelter and requires careful measuring and proper installation hardware to perform its best.

Frequently Asked Questions

Is this sail waterproof?
No, the fabric is water permeable and designed to let water pass through rather than provide a waterproof cover.

How much UV protection does it offer?
The sail provides UPF50-level protection and can block up to 95% of harmful UV rays.

Can it be custom sized?
Yes, ShadeMart offers custom sizes, but buyers should measure the venue carefully because manual measurements can cause slight variations.