17x21 ft Sun Shade Cloth with Grommets - 95% UV Protection Silver

In this review the 17x21 ft sun shade cloth is assessed for homeowners and gardeners who want a large, breathable cover for pergolas, patios or carports. The bottom line: this silver, custom-size shade delivers strong UV protection and a durable knit that stands up to regular outdoor use, making it a practical choice for anyone needing broad coverage without blocking airflow. Installation is straightforward and the reinforced edges and grommets make the panel usable right away, though careful mounting can avoid occasional grommet damage reported by some users.

Key Features

• Durable HDPE construction: The high density polyethylene knit resists tearing and fraying, giving the fabric long service life in outdoor settings.
• Reinforced edges and grommets: Double-sewn hems and copper grommets every 2 ft are seated in a double-layer hem to help the shade hold tension and attach securely.
• 95% UV protection: Designed to block most sunlight while maintaining breathability so cool air can circulate beneath the cover.
• Easy installation: Comes with zip ties and ropes so the shade can be fastened to a frame or posts without extra tools.
• Water passes through: The knit allows water to drain, reducing pooling and helping the shade dry quickly after rain.

Who It's For

This shade is ideal for homeowners with a pergola, patio, gazebo, carport or large backyard area who need a broad, breathable cover that blocks intense sun. It is also useful for small urban farms, greenhouses or pet enclosures where shade and airflow matter.

People who should look elsewhere include those who require a fully waterproof canopy or a rigid, permanent roofing solution; this product is a breathable fabric shade meant for seasonal or semi-permanent use and has a length tolerance of about 2 in due to fabric characteristics.

Pros & Cons

Pros

• High UV protection that keeps outdoor spaces noticeably cooler during strong sun.
• Strong knit and double-sewn edges add overall durability for repeated outdoor use.
• Simple, tool-free installation using the included zip ties and ropes.
• Versatile for many outdoor applications from patios to kennels and greenhouses.

Cons

• Some customers report grommet tearing during setup, so careful tensioning and proper mounting hardware are recommended.
• Not a waterproof cover; water passes through the fabric by design.

Specifications

Product size	17 ft x 21 ft
Material	High density polyethylene (HDPE)
UV protection	Approximately 95%
Edges	Double-sewn hems with reinforced copper grommets every 2 ft
Shading rate	About 85% to 90% (typical usage)
Installation	Includes zip ties and ropes, no extra tools required
Color	Silver

Our Verdict

The 17x21 ft silver shade cloth is a solid value for anyone needing large-area sun control with good durability and breathability. It is best for seasonal patio and pergola coverage where airflow and UV blocking matter; buyers should take care when mounting to protect the grommets, but overall it is an effective, affordable cover that fits many outdoor uses.

Frequently Asked Questions

Will this fabric block most of the sun?
Yes, the fabric is designed to block about 95% of UV while still allowing airflow.

Is the shade waterproof?
No, water will pass through the knit; it is not intended as a waterproof canopy.

Are installation supplies included?
Yes, the package includes zip ties and ropes so you can fasten the shade without additional tools.