Green Rectangle Sun Shade Sail 17ft x 20ft - Custom UPF50+ Protection

Our review of this green rectangle sun shade sail finds it best for homeowners and small commercial spaces that need reliable sun protection with a custom fit. The single biggest reason to buy is the combination of heavy-duty 200 GSM HDPE fabric and reinforced construction that blocks up to 95% of UV rays while remaining water and air permeable. Installers and DIYers will appreciate the flexible sizing and stainless steel D-rings, and those wanting a tailored installation can order to make exact D-ring to D-ring dimensions.

Key Features

• 95% UV blockage: The 200 GSM HDPE fabric blocks up to 95% of harmful UV rays to protect people and furnishings beneath the canopy.
• Temperature reduction: In shaded areas the sail can lower ambient temperatures by up to 15 degrees compared to unshaded spots, making outdoor time more comfortable.
• Custom sizing: Made to order using D-ring to D-ring measurements so the sail fits irregular or planned areas without large gaps or excessive sag.
• Durable construction: Stainless steel D-rings, reinforced edges, and double-layer stitching reduce fraying and extend usable life for commercial or residential use.
• Water and air permeable: The breathable HDPE weave lets wind and rain pass through rather than acting as a solid tarp, reducing stress on attachments during storms.
• Easy installation: The sail attaches to trees, posts, walls or roofs using common mounting hardware, with guidance on leaving spacer gaps at corners for optimal tension.

Who It's For

This shade sail is well suited for homeowners with patios, decks, pools or play areas who want a cooler, protected outdoor space and are willing to measure precisely for a tailored fit. It also meets needs for small commercial areas such as cafes or outdoor seating that require a durable, heavy-duty fabric rated for repeated use.

People seeking a permanent waterproof canopy or those who want a rigid, structured awning should look elsewhere, since the fabric is designed to be water and air permeable rather than fully waterproof or enclosed.

Pros & Cons

Pros

• High sun protection from the 200 GSM HDPE material that blocks about 95% of UV rays.
• Noticeable temperature reduction under the sail, improving outdoor comfort on hot days.
• Robust build with stainless steel D-rings and reinforced double stitching for longer life.
• Custom sizing option ensures a precise fit for unusual or specific spaces.

Cons

• The breathable fabric is not fully waterproof, so it will not keep out heavy, driving rain.
• Accurate measurement and correct corner spacing are required for best performance, which may be fiddly for first-time installers.

Specifications

Our Verdict

This custom-size green rectangle shade sail is a practical, good-value choice for anyone wanting strong sun protection and a cooler outdoor area without a rigid structure. Its heavy-duty 200 GSM HDPE, reinforced stitching and stainless D-rings make it durable for residential and light commercial use, and the made-to-order sizing means a neat fit when measured correctly.

Frequently Asked Questions

Is this shade sail waterproof?
The fabric is water and air permeable, so it sheds light rain but is not a fully waterproof tarp for heavy downpours.

How should I measure for a custom order?
Measure from D-ring to D-ring for each side; leave about 0.5 ft gap at corners for posts or reduce by 1 to 1.5 ft per side as noted in installation guidance.

Will the color fade quickly?
Customers report good color retention and material quality; the HDPE weave and heavier 200 GSM weight help resist premature fading.