Why adjustable pedestal supports are essential for modern terrace design

In modern terrace and rooftop design, functionality must meet aesthetics without compromise. Adjustable pedestal supports have become a go-to solution for architects, contractors and designers looking to create level, stable surfaces across uneven ground. All while maintaining clean finishes and accommodating essential services.
These systems are not only practical, but they are also critical for meeting the demands of modern construction, sustainability goals and long-term performance.
In this blog, we will explore what adjustable pedestal supports are, the key benefits they offer in terrace construction and why they have become a staple in modern landscaping. From drainage and flexibility to sustainability and service concealment, here is why pedestal systems from Raaft are shaping the future of outdoor design.
What are adjustable pedestal supports?
Adjustable pedestal supports are height-adjustable structural elements used to create raised, level surfaces for outdoor flooring such as decking or tiles. They are typically placed beneath the surface material and sit directly on the sub-base, such as an uneven rooftop.
Each pedestal can be precisely adjusted to compensate for slopes or irregularities in the base, creating a flat, stable finish. This makes them ideal for modern terraces, balconies and roof gardens.
Made from durable, weather-resistant materials, adjustable pedestals also allow for integrated drainage and provide space beneath the surface to run services like lighting, cabling or irrigation. This ensures a clean, professional result with long-term flexibility.

The benefits of adjustable pedestals in terrace construction
Adjustable pedestal systems offer a range of practical and design advantages that make them an ideal solution for modern terrace construction. Whether you are working on a residential balcony or a large commercial deck, their versatility and performance provide long-term value.
1. Designing for flexibility: How pedestal systems adapt to any surface
One of the standout advantages of adjustable pedestal supports is their adaptability. Whether you are working with sloped rooftops or complex building shapes, pedestal supports can be adjusted to compensate for surface variations. This eliminates the need for extensive groundworks.
This flexibility makes them ideal for both retrofit and new build projects. The height range and modularity of our Raaft system allow for seamless integration with a variety of surface materials, including porcelain tiles. The result is a uniform, level finish regardless of what lies beneath.
2. Improved drainage and moisture control with adjustable pedestal supports
Good drainage is critical in any outdoor installation to prevent water pooling, surface damage and structural issues over time. Adjustable pedestal supports naturally create a void between the surface material and the substrate, allowing water to drain freely and efficiently through open joints or designated channels.
This setup helps protect both the surface finish and underlying waterproof membranes. It also reduces the risk of frost damage in colder climates by preventing standing water.
By encouraging proper water flow and ventilation, pedestal systems play a key role in the long-term performance and durability of terraces.
3. Creating clean, seamless finishes with hidden services
A raised flooring system supported by pedestals provides an ideal space to conceal essential services such as electrical wiring, drainage and irrigation systems. These components remain completely hidden from view, preserving the aesthetic of the surface while ensuring easy access for future maintenance.
The ability to hide infrastructure without compromising on accessibility makes pedestal systems especially appealing in high-end residential and commercial projects, where a sleek, minimalist finish is often required. The result is a clean, uninterrupted terrace with no visible clutter.

4. Sustainability and reusability in modern landscaping
As the demand for sustainable construction grows, adjustable pedestal supports offer a smart solution. Our pedestal products are manufactured using recycled materials and designed for long-term use.
Unlike traditional construction methods that rely on mortar or adhesives, pedestal systems are dry laid, meaning they can be disassembled and reused without waste. This not only reduces the environmental impact of a project but also allows for future flexibility.
5. Easy maintenance and convenient access for repairs
Adjustable pedestal supports make terrace maintenance straightforward and efficient. By elevating the flooring, they create an accessible void beneath the surface where essential maintenance can take place.
If repairs or updates are required, individual tiles or decking panels can be easily lifted without causing damage or needing major dismantling. This helps extend the life of the terrace. The convenience of hidden yet accessible infrastructure is a significant benefit for both residential and commercial projects, where ongoing upkeep is essential.
Support Structure from Raaft®
Our range of height adjustable decking and paving pedestals are easy to use, engineered for high performance, and come together seamlessly with all Raaft® Terrace System components.

Why architects and contractors choose Raaft adjustable pedestal supports
Raaft’s adjustable pedestal supports are trusted by leading architects, designers and contractors for their performance, durability and design flexibility. Engineered to support a wide range of surface types and project demands, Raaft pedestals offer precision, ease of installation and reliable long-term support.
With a commitment to sustainability, quality materials and responsive technical support, Raaft helps deliver exceptional results across rooftop terraces and balcony installations. Whether you are looking to solve a practical challenge or achieve a high-end vision, Raaft’s adjustable pedestal supports are a proven foundation for success.
For more information about our roof terrace system and how Raaft could support your project, get in touch with our expert team today. We’re always happy to answer any questions you may have.