Right Triangle Sun Shade Sail 20ft x 20ft x 28.3ft - Heavy Duty UPF50

In this review the ShadeMart right triangle sun shade sail is evaluated for homeowners and small businesses seeking a durable, breathable canopy that blocks strong sunlight without adding bulk. The biggest reason to consider it is simple: the woven HDPE fabric combines heavy-duty build with high UV protection, offering a cooler shaded area while remaining water and air permeable. The review covers material, installation hardware, and real-world performance so you can decide if this triangular shade sail suits your patio, carport, or poolside needs.

Key Features

• Woven HDPE fabric: provides a durable, tear-resistant surface that blocks up to 95% of harmful UV rays while allowing air to circulate.
• UPF50 protection: meaningfully lowers sun exposure and helps reduce temperatures in the shaded area by about 10 to 15 degrees.
• Stainless steel D-rings: rust-free corner hardware attached to reinforced white webbing for reliable anchor points and longer outdoor life.
• Water and air permeable: the fabric lets water and breeze pass through, preventing pooling and reducing wind load on the sail.
• Custom sizing available: a range of custom sizes is offered so the sail can be tailored to unusual layouts, provided measurements are accurate.
• Decorative triangular styling: curved edges and multiple colors make the sail both functional and a visual upgrade for outdoor spaces.

Who It's For

The ShadeMart right triangle sail is best for homeowners, landlords, and small-business operators who need a robust shade solution for patios, carports, pergolas, pool areas, or outdoor seating. Its heavy-duty woven HDPE and stainless D-rings suit locations exposed to sun and regular weather where permeability is wanted rather than full waterproofing.

Those who need a fully waterproof canopy or a lightweight temporary shade for occasional indoor use should look elsewhere. Also, buyers who are not comfortable measuring for a custom fit should plan ahead, since correct sizing is important and sails may vary slightly due to manual measurements.

Pros & Cons

Pros

• Durable woven HDPE fabric resists tearing and held up well for customers even in strong winds.
• Effective solar protection that blocks up to 95% of UV and noticeably reduces temperature.
• Stainless steel D-rings and double webbing provide solid attachment points and reduce edge fraying.
• Breathable design prevents water pooling and keeps air flowing under the sail.

Cons

• Not waterproof, so it will not keep rain completely out of the shaded area.
• Custom sizing requires careful measurement and sails can vary slightly due to manual cutting and stitching.

Specifications

Shape	Right triangle
Size	20 ft x 20 ft x 28.3 ft (fabric area constant)
Material	Woven HDPE (high density polyethylene)
UV Protection	Blocks up to 95% of UV, UPF50
Hardware	Stainless steel D-rings with heavy duty white webbing
Water Resistance	Water permeable / not waterproof
Edge Construction	Double layered reinforced stitched seams with slightly curved edges

Our Verdict

The ShadeMart right triangle sun shade sail is a practical, value-focused solution for anyone who needs reliable UV protection and airflow in an outdoor area. With heavy-duty woven HDPE, rust-free D-rings, and reinforced edges it delivers durability and cooling performance for patios, carports, and pools; just be aware it is not designed to be waterproof and requires careful measuring for custom sizes.

Frequently Asked Questions

Is this shade sail waterproof?
The sail is water permeable, not waterproof, so water will pass through rather than pool on top.

How much sun does it block?
Manufacturer claims and customer experience report up to 95% UV blockage and meaningful temperature reduction under the sail.

What hardware is included?
Corners have stainless steel D-rings attached to heavy duty webbing, but proper mounting hardware for posts or walls may be purchased separately depending on installation needs.