Increasing urbanisation, more paved surfaces, and extreme weather patterns have placed significant pressure on existing drainage systems. One innovative and sustainable solution to these challenges is the use of soakaway crates, also known as attenuation crates or modular geocellular units. They are usually installed underground, wrapped in either a permeable geotextile (for infiltration systems) or an impermeable membrane (for attenuation systems). Attenuation systems: When infiltration isn’t possible due to clay soils or high groundwater levels, the crates act as temporary storage. Soakaway crates play a key role in Sustainable Drainage Systems (SuDS) by mimicking the natural water cycle.