Custom Size 18ft x 23ft Black Rectangle Sun Shade Sail - 95% UV

Our review of this custom size 18' x 23' black rectangle sun shade sail finds it a practical choice for homeowners and small commercial spaces seeking reliable sun protection without a heavy canopy structure. The single biggest reason to buy is its combination of high UV blockage and durable construction: made from 200 GSM HDPE it blocks up to 95% of UV rays while remaining water and air permeable, so it cools shaded areas by as much as 15 degrees without trapping wind. For those who need a tailored fit and weather-resistant material, this shade sail delivers consistent performance.

Key Features

• 95% Sun Protection: The 200 GSM HDPE fabric blocks up to 95% of harmful UV rays to reduce sun exposure in outdoor spaces.
• Temperature Reduction: When installed over seating or play areas it can lower surface temperatures by up to 15 degrees compared to unshaded zones for greater comfort.
• Water and Air Permeable: The breathable weave sheds some water and lets air pass through, avoiding pooling and reducing wind strain on the sail.
• Custom Fit: The sail is made to order from D-ring to D-ring so measurements translate into a tailored canopy for irregular or specific layouts.
• Reinforced Durability: Stainless steel D-rings, reinforced edges and double-layer stitching resist fraying and extend overall lifespan.
• 3-Year Assurance: A three year assurance gives extra confidence in material and workmanship for typical residential and light commercial use.

Who It's For

This shade sail is ideal for homeowners, small cafes, daycare outdoor areas and poolside spots that need strong UV protection and a cooler outdoor environment without a permanent structure. Installers who want flexible anchor options will appreciate that it can attach to trees, walls, roofs or poles.

People who need very rigid waterproof covers, ultra-heavy commercial duty fabric, or off-the-shelf sizes only may want to consider alternate solutions; this product is best when a custom measured fit and breathable, ventilated shading are the priority.

Pros & Cons

Pros

• High UV blockage of up to 95% provides meaningful sun protection for people and furnishings.
• Breathable HDPE fabric cuts temperatures by as much as 15 degrees while avoiding water pooling.
• Custom made to D-ring measurements for a precise fit and cleaner finished appearance.
• Durable details such as stainless steel D-rings and double stitching improve longevity.

Cons

• Material quality feedback is mixed among buyers, so finish and feel may vary compared with some other fabrics.
• Requires correct measurement and a gap allowance at corners, which may be tricky for first-time installers.

Specifications

Size	18' x 23' (custom made)
Color	Black
Material	200 GSM HDPE
UV Blockage	Up to 95%
Temperature Reduction	Up to 15 degrees vs. unshaded areas
Hardware	Stainless steel D-rings, reinforced edges
Warranty	3 year assurance

Our Verdict

The custom 18' x 23' black rectangle shade sail is a solid value for those who need strong sun protection, a cooler shaded area and a tailored fit. Its breathable 200 GSM HDPE fabric, reinforced corners and stainless steel D-rings make it dependable for residential patios or lighter commercial use, and the three year assurance adds peace of mind for most buyers.

Frequently Asked Questions

How should I measure for a custom sail?
Measure from D-ring to D-ring at each corner; allow at least 0.5 ft gap at corners or follow the recommended reduction of 1 to 1.5 ft per side for optimal tension.

Will the sail stop rain?
The HDPE weave is water and air permeable so it sheds some rain but is not fully waterproof; it is designed to reduce pooling and let wind pass through.

Can it be attached to trees or walls?
Yes; the sail is designed for flexible installation and can be anchored to trees, roofs, walls or poles using appropriate mounting hardware kits.