ShadeMart 18 ft x 20 ft Sand Beige Rectangle Sun Shade Sail - UPF50

Our review of the ShadeMart 18' x 20' Sand Beige Rectangle Sun Shade Sail finds it best for homeowners and small businesses that need a heavy-duty, breathable sun canopy for patios, carports, or pool areas. The single biggest reason to buy is its combination of rugged woven HDPE fabric and stainless steel corner D rings, which create a durable, wind-tolerant cover that blocks up to 95% of harmful UV while remaining water and air permeable. Installation is straightforward with proper hardware, and buyers who want cooler outdoor spaces will appreciate how much heat it reduces.

Key Features

• Material: Woven HDPE fabric delivers a strong, tear-resistant canopy that stands up to regular outdoor use.
• UV Protection: UPF50 construction blocks up to 95% of harmful UV rays, noticeably lowering temperatures under the sail.
• Hardware: Stainless steel corner D rings attached to heavy duty white webbing provide secure anchor points that resist corrosion.
• Breathability: The water and air permeable design allows rain and breeze to pass through, reducing uplift and pooling during weather events.
• Custom Sizing: A range of custom sizes is available so users can pick dimensions that match patios, pergolas, or carports with accurate measuring.
• Decorative Styling: The rectangle shape and neutral sand beige color integrate with many outdoor schemes while providing functional shade.

Who It's For

The ShadeMart rectangle sun sail is ideal for homeowners, landscapers, and small businesses seeking an affordable, durable solution to reduce sun exposure on porches, patios, and outdoor seating areas. Because the fabric is breathable and blocks most UV, it suits climates where cooling and UV protection are priorities without needing a fully waterproof canopy.

It is less suited to buyers who need a fully waterproof cover or want an exact, factory-guaranteed fit without allowing for manual measurement variation. Customers who require a rigid structure or complete rain protection should consider a solid-roof option instead.

Pros & Cons

Pros

• High-quality woven HDPE material feels durable and resists tearing under tension.
• Effective UPF50 sun protection that can lower temperatures noticeably beneath the sail.
• Stainless steel D rings and heavy white webbing make anchor points more durable and weather resistant.
• Breathable design reduces wind uplift and prevents water pooling during light rain.

Cons

• Not waterproof, so it does not provide full rain shelter during heavy storms.
• Manual size variations mean buyers must measure carefully to ensure the desired fit.

Specifications

Brand	ShadeMart
Shape	Rectangle
Size	18' x 20'
Material	Woven HDPE (High Density Polyethylene)
Hardware	Stainless steel corner D rings with heavy duty white webbing
Functionality	Water and air permeable; not waterproof
UV Rating	Blocks up to 95% of UV (UPF50)

Our Verdict

The ShadeMart 18' x 20' sand beige rectangle sun sail is a practical, value-oriented choice for anyone wanting reliable UV protection and a durable, breathable canopy for outdoor living areas. It is particularly good where airflow and reduced heat are needed, and it represents strong value when buyers measure carefully and accept that it is not a waterproof solution.

Frequently Asked Questions

Is this sail waterproof?
Answer. No, this style is water permeable and breathable; it allows water to pass through rather than providing full rain protection.

What hardware is included?
Answer. The product has stainless steel corner D rings attached to heavy duty white webbing; buyers should source a compatible hardware kit for their mounting structure.

Can the sail reduce temperature under it?
Answer. Yes, the UPF50 fabric blocks most UV and can lower temperatures under the sail by a noticeable amount, improving comfort in direct sun.