For Garorock 2026 in Marmande, France, JMSON delivered two large-scale stage structures using Prolyte systems, combining high load capacity, substantial roof spans, and solutions engineered for a major festival environment.

GARONNE | Main Stage
53 × 21 m footprint
16.72 m total height
13 m clearance
The main stage structure was built using Mammoth Truss and Mammoth Towers, together with H40V-MB and S52V truss. Custom JMSON bases and a Mammoth Tower truss ground ring completed the structural solution.




PLAINE | Second Stage
26 × 14 m footprint
13 m total height
11 m clearance
For the second stage, JMSON created the structure using Prolyte C52T, B100, S100F, and S52F systems.

Two stages, each with its own structural requirements, delivered using a combination of proven Prolyte systems and JMSON’s engineering and project expertise.
Project: Garorock 2026, Marmande, France
Structure & engineering: JMSON
Truss & staging systems: PROLYTE