ShadeMart 14 ft x 20 ft Black Sun Shade Sail UPF50 Rectangle - Heavy

Our review of the ShadeMart 14 ft x 20 ft Black Sun Shade Sail finds it best suited for homeowners and small business owners who need broad, breathable sun protection that is also durable. The single biggest reason to buy is the fabric and construction: woven HDPE fabric with double-stitched edges and stainless steel D-rings provides a tough, long-lasting canopy that blocks up to 95% of harmful UV rays while allowing water and air to pass through, so it reduces temperature without trapping moisture.

Key Features

• Woven HDPE fabric: The high density polyethylene weave offers a balance of breathability and strength so the sail resists fading and lets air circulate.
• 95% UV blockage: Blocking most harmful UV rays significantly lowers temperatures in the shaded area by an estimated 10 to 15 degrees for real comfort on hot days.
• Stainless steel D-rings: Rust-free corner D-rings attached to heavy duty webbing make it easy to secure the sail to poles, trees, or walls and improve long-term durability.
• Water and air permeable: The non-waterproof design allows rainwater and wind to pass through, reducing strain on attachment points and preventing water pooling.
• Double-reinforced edges: Double layered stitched seams around the perimeter reduce fraying and extend the life of the canopy under regular outdoor use.
• Custom sizing available: A range of custom sizes is offered so users can match the sail to patios, carports, pergolas, or pool areas if they measure accurately.

Who It's For

The ShadeMart rectangle sun sail is ideal for homeowners who want a cost-effective shade solution for patios, driveways, poolside areas, and carports where airflow and UV protection matter. It also fits well for RV owners and small commercial patios that need a durable, wind-resistant canopy without the heaviness of waterproof tarps.

Those who should look elsewhere include buyers needing a fully waterproof cover or an exact pre-measured fit without custom ordering; the sail is water permeable by design and manual size variation can occur, so precision installations may prefer rigid awnings or fully waterproof fabrics.

Pros & Cons

Pros

• Strong build quality with double webbing and stainless hardware for long-term outdoor use.
• Excellent sun protection that reduces ambient temperature by around 10 to 15 degrees.
• Breathable design prevents water pooling and handles wind well when properly installed.

Cons

• Not waterproof, so it will not keep an area dry in heavy rain.
• Color tones may vary slightly and sizes can differ due to manual measurement, so careful measuring is required for custom fits.

Specifications

Our Verdict

The ShadeMart 14 ft x 20 ft rectangle shade sail is a practical, value-oriented choice for anyone needing breathable UV protection over patios, pools, or carports. Its heavy duty construction and stainless fittings make it a durable option that performs well in wind and sun; just be aware it is not waterproof and custom sizing requires careful measurement.

Frequently Asked Questions

Can this sail be used in rain?
Yes; it is water permeable so rain passes through rather than pooling, but it is not waterproof and will not keep a space dry.

Will the D-rings rust?
No; the corner D-rings are stainless steel and designed to resist rust in outdoor conditions.

Do sizes vary?
Yes; shade sails may vary slightly due to manual measurements, so measure your space carefully before ordering.