ShadeMart 9ft x 17ft Black Rectangle Sun Shade Sail - Breathable UV

In this review the ShadeMart 9' x 17' Black Rectangle Sun Shade Sail is presented as a practical, no-frills solution for anyone wanting reliable sun protection without a permanent structure. The bottom line: it is best for homeowners or DIY installers who need a large, breathable canopy that cuts heat and UV, and value durable construction over waterproofing. The reviewer found the fabric and reinforced corners stand out for quality, and the single biggest reason to buy is the combination of strong woven HDPE fabric and stainless steel D rings that make the sail long-lasting and easy to tension.

Key Features

• Woven HDPE fabric: The high density polyethylene weave blocks up to 95% of harmful UV rays while staying breathable so heat and moisture do not build up underneath.
• Stainless steel corner D rings: Heavy duty D rings attached to reinforced white webbing provide secure anchor points that resist corrosion outdoors.
• Water and air permeable: The sail allows water to pass through instead of pooling, which reduces strain on attachment points and preserves canopy shape in rain.
• Temperature reduction: By shading an area and blocking sunlight the sail helps lower temperatures underneath by a noticeable margin, making patios and carports more comfortable.
• Custom size options: Multiple sizes are available so you can pick a sail close to your venue dimensions or order a custom cut to fit unique spaces.
• Versatile mounting: When paired with proper hardware kits the sail can be attached to poles, trees, walls or roofs for many outdoor uses.

Who It's For

The ShadeMart rectangle sail is ideal for homeowners, renters, and small business owners who need affordable, effective sun protection over patios, pool equipment, carports or yards without building a permanent structure. It suits people who prefer a breathable canopy that reduces heat and UV exposure but still lets air circulate.

This is less suitable for buyers who need a fully waterproof cover or a rigid structure; the fabric is explicitly not waterproof, so tents or roofs intended to keep out heavy rain should be sourced elsewhere. People wanting a ready-made mounting system should budget for compatible hardware, as the sail itself is the fabric canopy and corners.

Pros & Cons

Pros

• Durable HDPE weave and strong stitching that customers note holds up under tension.
• Stainless steel D rings and heavy webbing provide reliable anchor points that resist rust.
• Effective UV protection and noticeable temperature reduction under the shaded area.
• Flexible sizing and color options make it easy to match different spaces and styles.

Cons

• Not waterproof, so it will not keep out heavy rain or serve as a full weatherproof roof.
• Requires separate hardware and correct measurement for the best fit, which adds extra steps for installation.

Specifications

Brand	ShadeMart
Shape	Rectangle
Size	9' x 17'
Material	Woven HDPE (High Density Polyethylene)
Corner fittings	Stainless steel D rings with heavy white webbing
Functionality	Water permeable, breathable, UV resistant (blocks up to 95%)
Custom	Custom sizes available; measure venue accurately

Our Verdict

The ShadeMart 9' x 17' sail is a solid choice for anyone who needs effective, breathable shade with durable hardware and straightforward installation for patios, carports or pools. It offers good value compared with permanent structures, but buyers should plan for mounting hardware and accept that the fabric is not intended to be waterproof.

Frequently Asked Questions

Is this shade sail waterproof?
The sail is water permeable and breathable, so it is not waterproof and will allow water to pass through.

What are the corner fittings made of?
The corners use stainless steel D rings attached to heavy duty white webbing for durable anchor points.

Can I order a different size?
Yes, ShadeMart offers custom sizes; measure your venue carefully before ordering to ensure the correct area.