Order Helpline 01752 692 221

Graf Rain Bloc Stormwater Attenuation Crate - 3.3 Crates per m3, 60 Tonne Rated

Product Code:
Est. Delivery: 5-7 Working Days
Shipping costs displayed in basket.
We can let you know when this product is back in stock.

This product is proving to be very popular and has unfortunately sold out.

Enter your email below and we'll notify you as soon as this product is back in stock:

Subject to stock availability, if products on a 24 hours service are ordered alongside products NOT on a 24 hours service, this may delay your whole order.

View Transport Policy

All delivery charges are included in the final shopping basket and are dependent on the products Scottish Highlands & the Islands where additional shipping charges will apply.

Please note that not all products will incur an additional delivery charge to the Scottish Highlands & the Islands – this is based on the costs from the manufacturer, distributor or courier providing shipping on our behalf. If your delivery address is in the Scottish Highlands and Islands, a member of our helpline team will contact you prior to processing your order should an additional delivery charge apply.

While we make every effort to ensure orders are delivered by the date required, we cannot guarantee availability from the manufacturer or the manufacturer's delivery schedules.

Any variation to web delivery date given will be advised to you by email or telephone. If we are unable to make delivery because access is not possible, we reserve the right to make a failed delivery charge.

£45.17 Incl. VAT
Oops! Please select from the options

Product Description

The most common size of soakaway for residential use is 1m3 as this is what most local authorities seem to specify. A soakaway size of 1m3 is sufficient to drain a roof area of approximatley 50m2 under normal ground conditions.

StormCrates are modular geocellular units which are used predominantly as below ground storm water attenuation, surface water infiltration and soakaway systems. The StormCrates are designed to be stacked together to create a huge structural below ground holding tank or to allow the infiltration of storm water into the ground around them. The void created by the Stormcates can then fill up in with storm water during heavy rainfall conditions. 

The collected storm water then soaks away slowly into the drainage system or ground water table over a more sustained period of time. Extensive use of this type of storm water attenuation module has helped relieve pressure on conventional surface water drainage systems in line with the Sustainable Urban Drainage Systems (SUDS) program advocated by the Environment Agency.

  • Cellular rainwater attenuation modules
  • Lightweight and easy to install in up to 10 layers
  • Ideal for domestic soakaways
  • Cost-effective and space saving
  • 3.3 StormCrates per 1m³ storage capacity
  • High strength crate with lorry bearing of up to 60 tonnes
  • Fully inspectable for future maintenance when used with StormCrate Inspect crates


Volume (Litres): 300 (Net 285)
Length: 1200mm
Width: 600mm
Height: 420mm
Weight: 18kg
Colour: Black
Material: 100% Polypropylene

Product Documents


WIDTH 600mm LENGTH 1200mm THICKNESS 420mm


Size 1200mm x 600mm Material Polypropylene Colour Black

Products We Recommend


Questions & Answers


Hello, could you tell me please how many crates would I need to cover the area of 174m2?


To be able to find out how many crates you need, we would need to know how many m3 you require. Please feel free to email us at sales@drainagesuperstore.co.uk where we can help you further. 


How many crates in 50sm3?


165 Crates

Product Reviews

4.5 / 5 2 reviews
Mr Russell
10th July 2020
Good value
Peter Harland
3rd June 2020
Good service and timely delivery - very pleased thanks
Sorry, there was a problem loading the reviews. Please try again.

Product Enquiry Form

Graf Rain Bloc Stormwater Attenuation Crate - 3.3 Crates per m3, 60 Tonne Rated

*Required Field

Would you like to empty your basket?

Yes No


It seems you are running an older version of Internet Explorer. Our site does not support these old browsers as they do not house the technology that allows our site to be safe and secure.

If you wish to access our site please either upgrade your browser or download an alternative.