INTRODUCING THE OSLO TREE PROTECTION SYSTEM BY ASTRA
13 Jun 2025
Smart, modular tree protection for public spaces.

When it comes to protecting young trees in high-traffic public areas, Astra Street Furniture understands the need for solutions that are not only durable and attractive, but also practical and adaptable.
That’s why the team are excited to introduce the Oslo Tree Guard and Grate System — the latest innovation from Astra Street Furniture, developed in collaboration with a leading Australian council to address the real-world challenges of public landscaping and urban design.
This system has been thoughtfully engineered to provide long-lasting protection for newly planted trees while enhancing the aesthetics of streetscapes, civic plazas, parks and other public spaces. Built with modularity and maintenance in mind, the Oslo system is designed to evolve with your project as the surrounding environment grows and changes.
Key advantages include:
- Heavy-duty galvanised steel frame Built to withstand harsh public environments
- 8mm marine grade aluminium removable grate Strong, corrosion-resistant, lightweight and heel-proof
- Two-piece grate construction Allows for easy access and simplified installation
- Three interchangeable hole diameters To accommodate trees at different growth stages
- Premium anti-slip powder-coated finish (grate) Available in black and enhanced with anti-slip properties
- Removable spigots Enabling quick detachment of the guard when needed
- Grate option with hardwood stake holes Use hardwood stakes instead of the tree guard if desired
The Oslo Tree Guard can be either pinned into soft ground or bolted securely to the matching Oslo Tree Grate, offering flexibility across different project conditions. This allows the system to be used both in fully paved environments and landscaped areas, depending on the application.
As trees mature, the Oslo Grate system makes it easy to upgrade: simply change out the internal grate section for a larger opening. This prevents the need to replace the entire unit and ensures the health and integrity of the tree over time. The grate’s split design also means maintenance crews can access the base without disturbing the tree or surrounding paving.
Whether you're specifying products for a streetscape renewal, public park, transport hub or new urban development, the Oslo Tree Guard and Grate System delivers clean lines, robust performance, and real-world flexibility.
Visit Astra Street Furniture via the links below to learn more