ShadeMart 19 ft x 20 ft Green Sun Shade Sail UPF50 Rectangle - Heavy

In this review the ShadeMart 19' x 20' Green Sun Shade Sail is examined as a heavy-duty, breathable canopy option for patios, carports and poolside areas. The bottom line: this rectangular shade sail is best for buyers who need a durable, UV-blocking screen that lowers temperatures and fits custom layouts; the woven HDPE fabric and stainless steel D rings give it a solid build while the water-permeable design prevents pooling and improves airflow, making it a practical choice for outdoor use.

Key Features

• Woven HDPE fabric: The high density polyethylene material delivers a tough, tear-resistant surface that blocks up to 95% of harmful UV rays while remaining breathable.
• Stainless steel corner D rings: Heavy duty stainless-steel hardware attached to reinforced white webbing provides secure anchor points for long-term outdoor mounting.
• Water and air permeable: The sail allows rain and breeze to pass through so it does not trap water and reduces wind load on anchors.
• Temperature reduction: By blocking sun and heat, the fabric can lower covered temperatures significantly, improving comfort under the canopy.
• Custom size options: ShadeMart offers multiple custom sizes so buyers can match the sail to patios, carports, pergolas or pool areas when measured accurately.
• Styling versatility: The rectangle shape and color choices let the sail function as both practical shade and a decorative outdoor accent.

Who It's For

The ShadeMart 19' x 20' rectangle sail is aimed at homeowners and small business owners who need a sturdy, UV-blocking canopy for an outdoor area such as a patio, carport, RV cover or poolside seating. It suits DIY installers who can attach the sail to posts, walls, trees or roofs using a hardware kit and who value breathability to avoid water pooling.

Those looking for a fully waterproof cover or an exact color match should consider alternatives, since this style is explicitly water permeable and customer feedback shows mixed opinions about color accuracy. Buyers who need absolute dimensional precision should measure carefully and allow for manual measurement variation.

Pros & Cons

Pros

• Durable woven HDPE fabric offers strong UV protection and proven wind resistance in moderate conditions.
• Stainless steel D rings and reinforced webbing provide reliable anchor points for secure installation.
• Permeable weave lets water and air pass through, preventing pooling and reducing wind stress.
• Custom size availability and multiple colors make it adaptable to many outdoor layouts.

Cons

• Not waterproof by design, so it will not keep heavy rain off a parked vehicle or serve as full weatherproof shelter.
• Color and exact measured dimensions may vary slightly due to manufacturing and manual measurement.

Specifications

Brand	ShadeMart
Shape	Rectangle
Size	19' x 20'
Material	Woven HDPE (High Density Polyethylene)
Hardware	Stainless steel corner D rings with heavy duty white webbing
Functionality	Water permeable, breathable, blocks up to 95% UV

Our Verdict

The ShadeMart 19' x 20' Green Sun Shade Sail is a sensible, value-oriented choice for anyone needing a breathable, UV-resistant canopy that stands up to regular outdoor conditions. It is especially good where airflow and drainage matter, and its reinforced corners make installation straightforward; pick a different product only if you require a fully waterproof or color-critical solution.

Frequently Asked Questions

Is this shade sail waterproof?
No, this style is water permeable by design so rain and air pass through rather than forming a waterproof barrier.

Can it be attached to posts, trees, or walls?
Yes, with the proper hardware kits the sail can be anchored to poles, trees, walls, roofs and similar structures.

Will the fabric block UV and reduce temperature?
Yes, the woven HDPE material blocks up to 95% of UV rays and noticeably lowers temperatures under the canopy.