Product Code: Bespoke Product

The ULTIMA Hybrid utilises the inherent benefits of the STAKKAbox™ ULTIMA Connect system, providing amplified Class D strength capabilities without compromising on ease of installation.

  • Materials
    High Density Polyethylene (HDPE)
  • Size
    (L) x (W) x (D)

Features & benefits

Fast and easy to install

The modular assembly solution incorporates the ULTIMA Connect pit system, engineered ULTIMA beams and an interconnecting precast concrete base slab and encasement for rapid installation. This system provides a significantly faster installation than conventional alternatives, providing substantial cost reductions for the installer.

Customisable to suit your install needs

STAKKAbox™ ULTIMA Hybrid can be used to construct virtually any conceivable access pit clear opening. ULTIMA offers a huge range of pit dimensions thanks to a large number of standard sections.

Flat Pack Option

STAKKAbox™ ULTIMA Hybrid systems can be sent to the site in a ‘flat pack’ arrangement, allowing for flexibility in delivery and installation. An extensive pit system can be reduced to several pallets rather than occupying an entire truck, reducing total freight costs.

Full specifications


Glass-reinforced plastic (GRP), is a composite material, fibre-reinforced polymer made of a plastic reinforced by fine fibres made of glass. GRP has a high strength to weight ratio, high-temperature range, high mechanical properties and is fire retardant. Additionally, GRP is also chemically inert and isn’t susceptible to creep.

Load Rating

STAKKAbox™ ULTIMA Hybrid is suitable for installation in environments rated to Class D load rating (ultimate limit state design of 240kN) under the Australian Standard AS/NZ 3996.


Documents & Brochures