Custom Size 17ft x 21ft Beige Rectangle Sun Shade Sail - UPF50

In this review the Custom Size 17' x 21' Beige Rectangle Sun Shade Sail is examined for homeowners and small businesses who need reliable sun protection and a tailored fit. The biggest reason to buy is its balance of strong UV defense and heavy-duty construction: crafted from 200 GSM HDPE with up to 95% sun blockage, this sail noticeably lowers temperatures and stands up to demanding outdoor conditions while being ordered to make for a precise fit.

Key Features

• 95% UV Blockage: The 200 GSM HDPE fabric blocks up to 95% of harmful rays, giving confident sun protection for patios and play areas.
• Temperature Reduction: The canopy lowers ambient temperature by up to 15 degrees compared to unshaded areas, helping create a cooler outdoor space.
• Custom Fit: Measurements are taken from D-ring to D-ring so the sail can be made to match a specific opening or layout for a neat installation.
• Durable Construction: Reinforced edges, double-layer stitching and stainless steel D-rings improve longevity in regular outdoor use.
• Water and Air Permeable: The weave allows airflow and some water permeability, reducing uplift and ponding during light rain.
• Three-Year Assurance: The product includes a three-year assurance that backs the material and workmanship for typical outdoor use.

Who It's For

The sail is best for homeowners, cafes and landscapers who want a tailored shade solution that combines strong UV protection with heavy-duty materials; anyone who needs a specific 17' x 21' footprint or a custom-cut rectangle will appreciate the order-to-make approach and stainless steel fittings. It also suits buyers who value long-term performance over cheaper, off-the-shelf covers.

Customers who want a fully waterproof awning, an instant pop-up canopy, or a very lightweight seasonal cover should look elsewhere, since this product is a breathable HDPE shade sail designed for sun protection and airflow rather than full waterproofing or rapid tent-style setup.

Pros & Cons

Pros

• High sun protection with up to 95% UV blockage for safer outdoor time.
• Robust materials and stainless steel D-rings with reinforced stitching improve durability in wind and sun.
• Custom sizing ensures a cleaner, tailored look and better coverage for specific spaces.
• Reduces temperatures noticeably, making patios and play areas more comfortable.

Cons

• Not fully waterproof; the breathable design allows some water through during rain.
• Requires proper planning for installation and sufficient gap allowances at corners for best performance.

Specifications

Material	200 GSM HDPE
Size	17 ft x 21 ft (custom made)
UV Protection	Up to 95% blockage (UPF50+)
Hardware	Stainless steel D-rings, reinforced edges
Permeability	Water and air permeable weave
Stitching	Double-layer reinforced stitching
Assurance	3-year assurance

Our Verdict

The Custom Size 17' x 21' Beige Rectangle Sun Shade Sail is a practical, long-lasting choice for anyone needing precise shade coverage and strong UV defense. Its heavy-duty 200 GSM fabric, reinforced fittings and custom sizing deliver good value for patios, playgrounds and commercial outdoor seating, provided buyers accept a breathable sail rather than a fully waterproof canopy.

Frequently Asked Questions

How much sun does this sail block?
The fabric blocks up to 95% of UV rays, rated as UPF50+ for strong sun protection.

Is the sail waterproof?
The weave is water and air permeable, so it reduces heat and sheds light rain but is not designed as a fully waterproof cover.

How should I measure for a custom fit?
Measure from D-ring to D-ring for each side and allow the recommended corner gaps of about 0.5 ft, or adjust 1 to 1.5 ft per side depending on mounting points.