12 ft x 17 ft x 20.8 ft White Right Triangle Sun Shade Sail - UPF50

In this review the focus is on a large, custom-size right triangle shade sail that aims to protect patios, pools and carports from intense sun. The bottom line: if you need a heavy-duty, breathable canopy that blocks the majority of UV and stands up to prolonged sun exposure, this 12 ft x 17 ft x 20.8 ft white shade sail is worth considering because its 190 GSM virgin HDPE fabric and UV stabilized compound deliver longer life and stronger UV resistance than many recycled alternatives.

Key Features

• 190 GSM Virgin HDPE: The thick, 100% virgin woven material provides a robust, long-lasting fabric that resists tearing and stretching under regular outdoor use.
• UV Stabilized Compound: Laboratory testing of the compound shows extended durability in sunlight, helping the fabric resist drying out, fading and breakdown.
• 95% UV Blockage: High UV blockage significantly reduces heat and harmful sunlight in shaded areas, making it useful for patios, pools and balconies.
• Breathable Design: The woven mesh allows air and water to pass through so rain does not pool and ventilation reduces trapped heat below the canopy.
• Reinforced Edges and Corners: Double-layer stitched seams and stainless steel D-rings at each corner increase structural strength and make secure mounting easier.
• Commercial Grade Warranty: The product includes a 3 year limited warranty under normal weather and usage for added purchase confidence.

Who It's For

This shade sail is best for homeowners and light commercial spaces that need a large, durable right triangle canopy to create consistent shade over a patio, poolside seating, carport or outdoor entertaining area. It is particularly suited to sunny regions where prolonged UV exposure is a concern and buyers want a breathable fabric that limits heat while avoiding water pooling.

Customers who need quick temporary shade or who prefer impermeable, rainproof covers should look elsewhere, since this woven fabric is designed to let water through rather than shed all rain. Also, installation requires separate hardware kits and suitable anchor points, so those without access to poles or walls may need professional help.

Pros & Cons

Pros

• Durable 190 GSM virgin HDPE resists fading and tearing under strong sun.
• High UV blockage reduces temperature and sun exposure in shaded areas.
• Breathable mesh prevents water pooling and promotes airflow beneath the sail.
• Reinforced seams and stainless steel D-rings make mounting secure and reliable.

Cons

• The fabric is permeable by design, so it does not provide full rain protection.
• Installation hardware is sold separately, requiring extra purchase and planning.

Specifications

Our Verdict

This large white right triangle shade sail is a strong choice for anyone seeking durable, high-coverage sun protection that reduces heat and UV exposure. Its 190 GSM virgin HDPE fabric and reinforced construction offer good value for outdoor living areas in sunny climates, provided buyers plan for separate hardware and accept a breathable fabric rather than a fully waterproof canopy.

Frequently Asked Questions

Does the sail stop most UV rays?
Yes, the woven fabric is rated to block about 95% of harmful UV, providing UPF50-level protection.

Will rain pool on the surface?
No, the breathable HDPE weave lets water pass through so pooling is unlikely in normal rain.

Are mounting fittings included?
No, installation hardware and cables are sold separately and each D-ring requires a proper cable or kit for a secure fit.