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Attenuation Crates & Stormwater Attenuation Tanks

Attenuation Tank Crates for Surface Water Drainage

Buy attenuation crates and attenuation tank crates online from BP Plastics for domestic, commercial and industrial drainage projects. Our modular stormwater storage crate systems provide effective surface water drainage, underground stormwater storage and SuDS-compliant drainage solutions across the UK.

We supply trusted UK drainage brands and high-performance modular crate systems designed for stormwater attenuation, where rainwater is temporarily stored underground and discharged slowly into a drainage network. For systems where water is intended to infiltrate naturally into the surrounding ground, see our range of soakaway crates.

High Performance Modular Stormwater Storage Systems

Attenuation crate systems temporarily store rainwater underground before releasing it at a controlled rate into the drainage network. They are often installed alongside underground drainage pipe and fittings to manage runoff from roofs, driveways, car parks and paved areas.

Crates are quick to install and can be configured in single or multi-layer systems depending on the required storage capacity. We also supply supporting drainage components needed to complete the installation, including silt traps, flow control units and drainage adaptors.

Stormwater Attenuation for SuDS Projects

Attenuation tank crates are widely used where ground conditions prevent direct infiltration into the soil or where stormwater must be discharged at a controlled rate. They are ideal for modern Sustainable Drainage Systems (SuDS) used in residential developments, commercial sites and infrastructure projects.

Trusted UK-Spec Drainage Products

Our attenuation crate systems are manufactured to meet the same demanding standards as leading UK drainage products used in surface water management installations. Each system is designed to support modern SuDS guidance and building regulation requirements for stormwater storage and controlled discharge.

For infiltration-based drainage systems, you may also wish to explore our range of soakaway crates. For larger surface water installations, browse our twin wall drainage pipe and fittings and wider underground drainage pipe and fittings ranges.

Common Uses for Attenuation Tank Crates

Attenuation crates are used in a wide range of drainage applications including housing developments, commercial buildings, retail parks, industrial units, road schemes and landscaped surface water management projects.

Why Buy Attenuation Tank Crates from BP Plastics?

  • High-strength modular crate systems with excellent void ratios
  • Suitable for residential, commercial and industrial drainage projects
  • Ideal for SuDS-compliant stormwater attenuation systems
  • Competitive UK pricing with bulk discounts available
  • Fast nationwide delivery and same-day dispatch options
  • Expert technical support from our UK-based team

Orders of more than four crates may be subject to our non-standard delivery window of 2–5 working days. Please see our delivery information for full details.

You can also browse our wider ranges of underground drainage pipe and fittings, inspection chambers and manhole covers, channel drainage systems and land drainage pipe to complete your surface water drainage installation.

Related Drainage Categories

Soakaway Crates | Underground Drainage Pipe and Fittings | Inspection Chambers & Manhole Covers | Twin Wall Drainage Pipe & Fittings | Channel Drainage | Land Drainage

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Attenuation crates are modular underground storage units used to temporarily store stormwater runoff. The stored water is released slowly through controlled outlets to prevent flooding and manage drainage system flow rates.
Attenuation Tank Crates provide temporary storage for rainwater runoff, which reduces the amount of water flowing into the sewer system at once. This reduces the risk of flash floods by slowing down the flow of water.
Yes, Attenuation Tank Crates can also be used for the storage of greywater and other non-toxic liquids.