Extrablock 330 is a versatile commercial-grade Shade Sail fabric that offers an excellent balance of UV protection, durability, and value. Designed for permanent outdoor installations, it's a popular choice for both residential and commercial projects where long-term performance is important without stepping up to a heavier premium fabric.
Whether you're shading a patio, playground, outdoor dining area, or public space, Extrablock 330 delivers reliable performance while remaining lightweight and easy to work with.
What Is Extrablock 330?
Extrablock 330 is a 330 GSM knitted HDPE (High-Density Polyethylene) Shade Sail fabric designed specifically for tensioned shade structures. It is manufactured for permanent outdoor use and combines commercial-grade durability with excellent dimensional stability, making it suitable for a wide range of custom Shade Sail installations.
One of the standout features of Extrablock 330 is that it is certified to Australian and California State Fire Marshal fire safety standards, making it a suitable choice for projects where fire-rated materials are required.
Why Choose Extrablock 330?
Extrablock 330 sits comfortably between entry-level residential fabrics and premium architectural options. It offers a combination of performance and affordability that makes it suitable for many different applications.
Some of its key benefits include:
- Commercial-grade knitted HDPE fabric.
- Variance in colour of topside and underside on select colours.
- Fire-rated to NFPA 701, ASTM E84 & CSFM Title 19 Certified* standards
- Superior colour retention for long-lasting appearance.
- Manufactured in South Africa
- Backed by a 10-year warranty.
Its lightweight construction makes it slightly easier to handle during manufacturing and installation while still providing the strength expected from a permanent Shade Sail fabric.
* 4 colours of the Extrablock range are not FR rated.
Where Is Extrablock 330 Best Used?
Extrablock 330 is suitable for a wide variety of residential and commercial Shade Sail projects.
It performs particularly well in:
- Backyard patios and outdoor entertaining areas.
- Cafés and restaurants.
- Pergolas and landscaped outdoor areas.
- Projects where fire-rated materials are preferred.
Its balance of strength, weight, and durability makes it a practical option for both smaller residential sails and commercial installations.
UV Protection and Comfort
Extrablock 330 is designed to provide excellent protection from the Australian sun while maintaining airflow through the knitted fabric.
Depending on the colour selected, the fabric can provide up to 95% UV Block and up to 90% Shade Factor, helping create a cooler and more comfortable outdoor space without trapping heat beneath the sail. The breathable construction allows cooling breezes to pass through, making it well suited to warm climates.
Built for Long-Term Performance
Permanent Shade Sails are exposed to constant sun, wind, and changing weather. Extrablock 330 is manufactured to withstand demanding conditions while maintaining its colour and structural performance over time. Its tear resistance, low maintenance requirements, and commercial-grade construction make it a dependable option for projects that are expected to provide years of reliable shade.
As with any permanent Shade Sail, the best results come from proper design, quality hardware & fixings, and correct f tensioning.
Is Extrablock 330 the Right Fabric for You?
If you're looking for a fabric that offers excellent UV protection, commercial-grade durability, and outstanding value, Extrablock 330 is an excellent choice.
It bridges the gap between residential and premium architectural fabrics, making it suitable for everything from backyard Shade Sails to schools, cafés, and commercial outdoor spaces. Combined with quality hardware and a well-designed installation, Extrablock 330 provides an attractive, durable, and low-maintenance Shade Sail solution for years to come.
Explore the available Extrablock 330 colours and custom Shade Sail options to find the right fabric for your outdoor project.
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