ShadeMart 10 ft x 21 ft Turquoise Sun Shade Sail Rectangle - UPF50

In this review the ShadeMart 10' x 21' Turquoise Sun Shade Sail is evaluated as a practical, large-coverage canopy for patios, carports and poolside areas; the biggest reason to buy is its combination of durable woven HDPE fabric and strong stainless steel D rings that deliver reliable sun protection and long-term outdoor performance. The sail is aimed at homeowners who need breathable shade that cuts heat and blocks UV, and this review focuses on real use, installation notes, and how the product performs over time in everyday outdoor settings.

Key Features

• Material: Woven HDPE fabric provides a heavy-duty, fade-resistant surface that stands up to sun exposure while remaining breathable for airflow.
• UV Protection: The fabric blocks up to 95% of harmful UV rays and is rated UPF50 to reduce temperature and protect people and furnishings beneath the canopy.
• Hardware: Corner D rings are stainless steel and stitched to heavy duty white webbing for secure anchor points when paired with proper installation kits.
• Water Permeability: The sail is water permeable and breathable so rain drains through instead of pooling on the fabric, reducing wind load and sagging.
• Custom Size Options: ShadeMart offers a range of custom sizes so buyers can match the sail to patios, carports, pergolas or pool areas when they measure carefully.
• Styling: Rectangle shape and bold turquoise color add a decorative, functional element to outdoor living spaces while complementing many design schemes.

Who It's For

The ShadeMart 10' x 21' rectangle sail is best for homeowners and renters who want large-area shade that lowers temperatures by roughly 10 to 15 degrees in direct sun, and who value breathable, water-permeable fabric over a fully waterproof canopy. It is also a solid choice for DIYers who will attach the sail to posts, walls, trees or roofs using an appropriate hardware kit.

Those who need a fully waterproof awning or a perfectly precise geometric panel for architectural installations should look elsewhere; the fabric is intentionally permeable and manual measurements may produce slight shape variation, so exact-fit projects may require custom planning.

Pros & Cons

Pros

• Durable woven HDPE material and stainless steel D rings deliver long-term outdoor durability and reliable anchoring.
• Blocks up to 95% of UV rays and reduces heat, making patios and pool decks noticeably cooler.
• Water permeable design prevents pooling and allows airflow, improving comfort in mixed weather.
• Available in custom sizes and attractive colors to suit many outdoor spaces.

Cons

• The sail is not waterproof, so it will not provide full rain protection during heavy storms.
• Some customers report variation in shape or size versus expectations, so careful measurement is required.

Specifications

Our Verdict

The ShadeMart 10' x 21' Turquoise rectangle sail is a practical, good-value solution for anyone who needs breathable, effective sun protection over a large outdoor area; its heavy-duty HDPE fabric, stainless D rings and UPF50 performance make it a dependable choice for patios, carports and poolside use. Buyers who accept a permeable, non-waterproof fabric and take care measuring for fit will find strong durability and clear temperature reduction for the price.

Frequently Asked Questions

Is this sail waterproof?
The sail is water permeable and breathable, not waterproof, so water will pass through rather than pool on the fabric.

Can I attach the sail to a wall or tree?
Yes; with proper hardware kits the sail can be anchored to poles, walls, trees, roofs and other structures.

Will it block UV and reduce heat?
Yes; the fabric blocks up to 95% of UV rays and will typically lower temperatures beneath the canopy by about 10 to 15 degrees.