STAKKAbox™ ULTIMA offers a flexible access chamber system without compromising on strength. Due to its design and the material used (GRP), the ULTIMA chamber can be used anywhere where side wall loading is a concern, such as highways or railway tracks. Its range of accessories and access cover options makes it the most versatile solid ring chamber system that can meet F900 loadings.
How it's Built
ULTIMA chambers are constructed by stacking 150mm deep ring sections to reach the desired height. Each ring section is castellated to positively interlock with the units above and below. Due to the sectional twinwall design and the GRP material, most ULTIMA 150mm deep sections fall under 25kg in weight, making them suitable for a single person lift under manual handling regulations.
Manufactured from Glass Reinforced Polyester Resin (GRP) material for long-lasting toughness, durability, and strength.
ULTIMA chambers can achieve and exceed F900 vertical load test results. Side loads are comparable to that of concrete chambers, with the added benefit of being twin walled complete with both horizontal and vertical ribs.
ULTIMA chamber sizes have been designed to be reflective of the most commonly used access chamber sizes. This makes ULTIMA the ideal retrofit solution for existing networks, minimising site disruption and installation costs.
Download our product size guide for chambers in order to get more information on available sizes and see our STAKKAbox™ ULTIMA Connect chamber solution, which can be scaled to any size you require.
STAKKAbox™ ULTIMA is suitable for meeting and exceeding installation environments rated to F900 under EN124.
Ideal for areas imposing high wheel loads, such as docks and airfields whilst still enabling adaptability to varying underground utilities.