ShadeMart 8 ft x 20 ft Green Rectangle Shade Sail - Breathable UV

In this review the ShadeMart 8 ft x 20 ft Green Sun Shade Sail is evaluated as a straightforward solution for homeowners and small businesses who need durable, breathable sun protection. The main reason to consider this shade sail is its combination of woven HDPE fabric and stainless steel corner D rings, which together deliver reliable UV blocking and a strong attachment system without the weight or heat retention of a solid canopy. Installation is simple with basic hardware, and the sail's water permeable design keeps air moving while blocking most sunlight.

Key Features

• Material: Woven HDPE fabric provides a lightweight but sturdy canopy that reduces heat while resisting tearing under normal outdoor use.
• Attachment hardware: Stainless steel corner D rings sewn into heavy duty white webbing give secure, rust-resistant anchor points for a long-lasting hold.
• UV protection: The fabric blocks up to 95% of harmful UV rays, which helps lower ambient temperatures beneath the sail by a noticeable amount.
• Breathability: Water permeable and breathable construction allows rain and air to pass through, preventing pooling and improving comfort underneath.
• Custom sizing: Multiple sizes and a custom option mean the sail can be tailored to fit patios, carports, pergolas, or poolside covers with accurate measurements.
• Styling: Rectangle shape and color choices allow the sail to function as both practical shade and a decorative accent in outdoor spaces.

Who It's For

Homeowners who want an affordable, functional shade solution for a patio, carport, pergola or pool area will find this sail appropriate; it is especially useful where airflow and reduced heat are priorities rather than full waterproofing. DIY installers who already have or can buy basic hardware kits will appreciate how easily the fabric mounts to poles, trees, walls or roofs.

People who need a fully waterproof canopy or who require a rigid, tensioned architectural sail for permanent commercial installations should look elsewhere. Also, buyers must measure carefully before ordering a custom size to ensure the rectangular area fits their venue.

Pros & Cons

Pros

• Good build quality with strong stitching and sturdy stainless steel D rings that customers report as reliable.
• Effective shade and temperature reduction thanks to up to 95% UV blockage.
• Breathable, water permeable fabric prevents water pooling and keeps airflow under the canopy.
• Custom sizes and multiple colors make it flexible for many outdoor layouts.

Cons

• Not waterproof, so it will not provide full rain protection during heavy storms.
• Manual measurement variance means buyers must be careful to measure their space accurately before ordering.

Specifications

Brand	ShadeMart
Shape	Rectangle
Size	8 ft x 20 ft
Material	Woven HDPE (High Density Polyethylene)
Corner Hardware	Stainless steel D rings on heavy duty webbing
Water Resistance	Water permeable, not waterproof
UV Protection	Blocks up to 95% of UV rays

Our Verdict

The ShadeMart 8 ft x 20 ft rectangle shade sail is a practical, good-value choice for anyone wanting strong UV protection with breathability and easy installation. It is best for patios, carports, pools and similar outdoor areas where airflow and temperature reduction matter more than full waterproofing, and the stainless steel D rings and HDPE fabric together deliver durable performance for seasonal or semi-permanent use.

Frequently Asked Questions

Is this sail waterproof?
No; the fabric is water permeable and breathable so it will not hold water but does not provide full rainproof coverage.

Can it be attached to trees and poles?
Yes; with the proper hardware kits the sail can be anchored to poles, trees, walls or roofs for versatile mounting options.

Do sizes vary?
Yes; shade sails may vary slightly due to manual measurements, so measure your venue accurately and note that the area of fabric is maintained.