At Spantech, we believe every event deserves a structure that matches its ambition. That is why we are proud to introduce two of our most spectacular event designs to date: the High Polygonal and the Grand Cathedral. Both are created to elevate concerts, festivals, and large-scale events with unmatched scale, flexibility, and visual presence.
Built on the trusted Polygonal system, the High Polygonal raises the bar for versatility. Elevated on 8-metre columns and reaching an internal clearance of up to 18.3 metres, it offers organisers even more creative freedom. The reinforced framework is engineered to handle heavy rigging loads, making it ideal for large stages, lighting rigs, immersive visuals, and sound equipment suspended from the roof.
With a width of up to 50 metres and virtually unlimited length, the High Polygonal adapts seamlessly to festivals, concerts, or any production where scale and reliability are non-negotiable.

For organisers looking to make an unforgettable statement, the Grand Cathedral offers panoramic façades, soaring dimensions, and an unrivalled sense of presence. With a width of 40 to 50 metres and an internal clearance of up to 28 metres, this arched structure dominates the skyline and creates an immersive experience inside.
It is not just about size. The Grand Cathedral combines elegant design with functional performance. High rigging loads, flexible wall and cover options, and integrated accessories make it as practical as it is breathtaking, a true signature structure for festivals and upscale events.

Both structures can be tailored to the needs of each event, with a wide range of covers, walls, flooring, and accessories. Whether the goal is to create a high-energy concert space or an immersive festival stage, the High Polygonal and Grand Cathedral deliver both the functionality production teams require and the impact audiences remember.
Are you planning your next big event? Get in touch with our team to explore how these new designs can bring your vision to life.
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