Geocellular Crates For Attenuation

A series of Geocellular crates, or soakaway crates as they are often called, are used in an attenuation application as an underground void to detain stormwater. Often referred to as a ‘Geocellular attenuation tank’, water enters the system, usually after passing through an attenuation silt trap or catchpit, to then be stored in the tank. The Geocellular crates can hold stormwater due to them being wrapped in specially designed geotextile membranes for attenuation, keeping the tank watertight until it is discharged at a slower, controlled rate later in the system.

There are variations of Geocellular crates depending on the environment in which they are being used for attenuation. A standard Geocellular module has a vertical crush load capacity of 24.2 tonnes per square metre and is typically used in light traffic residential and pedestrian areas as well as beneath driveways and car parks.


Other attenuation requirements within urban environments or commercial projects can be subjected to heavier loads and require a more heavy-duty crate, such as the heavy Geocellular modules. Often used in new housing developments or commercial infrastructure projects, the heavy Geocellular option features a vertical crush capacity of 65 tonnes per square metre – more than double of a standard module.

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  1. Rainsmart Ellipse Soakaway Crate Flat-Packed
    1. Code 90004F
    £46.07 £55.28 £57.59 £69.11 Save 20%
  2. Rainsmart Ellipse Soakaway Crate Assembled
    1. Code 90004
    £49.18 £59.02 £61.47 £73.76 Save 20%
  3. Rainsmart Ellipse Soakaway Set Flat-Packed 1 Cubic Metre
    1. Code 90004M3F
    £175.95 £211.14 £219.94 £263.93 Save 20%
  4. Rainsmart Ellipse Soakaway Set Assembled 1 Cubic Metre
    1. Code 90004M3
    £196.65 £235.98 £245.81 £294.97 Save 20%
  5. Rainsmart Soakaway Set For Heavier Soils Flat-Packed 1 Cubic Metre
    1. Code 80001M3F
    £271.82 £326.18 £339.77 £407.72 Save 20%
  6. Rainsmart Soakaway Set For Heavier Soils Assembled 1 Cubic Metre
    1. Code 80001M3
    £292.73 £351.28 £365.91 £439.09 Save 20%
  7. Rainsmart Soakaway Set Shallow for Heavier Soils Flat-Packed 1 Cubic Metre
    1. Code 80001M3FSHALLOW
    £323.05 £387.66 £403.81 £484.57 Save 20%
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