ShadeMart 7 ft x 20 ft Red Sun Shade Sail Rectangle - UV Blocking

In this review the ShadeMart 7 ft x 20 ft Red Sun Shade Sail Rectangle is evaluated for homeowners and small business owners who need a durable, breathable sun cover. The bottom line: it is best for anyone who wants reliable UV protection and airflow without a permanent structure, because the woven HDPE fabric blocks up to 95% of harmful UV rays while remaining water permeable and breathable, reducing temperatures noticeably under the canopy.

Key Features

• Woven HDPE fabric: Provides a lightweight but strong canopy that blocks sunlight and lasts outdoors without trapping heat.
• Stainless steel corner D rings: Offer sturdy attachment points that resist rust and simplify mounting with common hardware kits.
• Water permeable and breathable: Allows rain and air to pass through, preventing water pooling and improving comfort in warm weather.
• UV protection: Blocks up to 95% of harmful UV rays, helping lower temperatures beneath the sail by an observable margin.
• Custom sizing available: A range of custom sizes means the sail can be ordered to fit patios, carports, pergolas or pool equipment enclosures.
• Rectangle styling: A simple rectangle shape integrates easily with existing outdoor designs while adding visual interest and shade.

Who It's For

The ShadeMart rectangle sail is ideal for homeowners who need a cost-effective shade solution for a patio, carport, pergola or pool area and for DIY installers who will mount the sail to posts, trees or walls using separate hardware. Its breathable design suits climates where ventilation and reduced temperatures are priorities rather than waterproofing.

This is not the best choice for buyers who need a fully waterproof canopy or those seeking a rigid permanent roof replacement; the product is specifically a fabric, water-permeable shade sail and should be selected when airflow and UV blocking are the key goals.

Pros & Cons

Pros

• Durable woven HDPE material with strong stitching and corner loops for reliable long-term outdoor use.
• Stainless steel D rings and heavy duty webbing make attachment straightforward and corrosion resistant.
• Effective temperature reduction and high UV blockage while remaining breathable and preventing water pooling.
• Good value for the price compared with building a permanent shade structure.

Cons

• Not waterproof, so it will not provide shelter from heavy rain.
• Manual measurements may cause slight size variations, so accurate measuring is required before ordering.

Specifications

Our Verdict

The ShadeMart 7 ft x 20 ft rectangle shade sail is a practical, affordable option for anyone seeking strong sun protection with good airflow and simple installation. It delivers solid UV blocking, durable attachment points and useful temperature reduction, making it a sensible buy for patios, carports and pool-side areas where waterproofing is not required.

Frequently Asked Questions

Is this sail waterproof?
No, the fabric is water permeable and breathable; it will allow water to pass through rather than shed heavy rain.

Can it be attached to trees or poles?
Yes, with proper hardware kits the sail can be mounted to posts, trees, walls or roofs.

Do sizes vary from the listing?
Minor variation from manual measuring can occur, but the fabric area is intended to remain consistent; measure the installation area carefully before ordering.