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marshalls birco 100 cast iron slot grate

Birco 100

Marshalls’ Birco 100 is a low-capacity linear drainage system suitable for a range of purposes across civic, commercial, rail and industrial projects.

Available in a variety of loading ratings up to F900, Birco 100 is made from high-quality pre-cast concrete, with heavy-grade rolled galvanised steel angles cast into the top of the channel walls to ensure strength in heavy loading applications. This ensures ultimate reliability and durability, whether it’s to be deployed in areas of light or heavy traffic.

As well as functionality, Birco 100 offers a pleasing aesthetic, combining a robust concrete channel with a choice of cast iron, stainless steel or galvanised grating in various patterns. Grates are secured by stainless steel bolts that are anchored into threaded steel sockets, and cast into the channel wall, for extra durability.

Marshalls’ Birco 100 comes in a range of lengths and depths, with additional accessories allowing any project’s drainage needs to be met. It can be used alongside most landscaping surfaces, including paving, and can be used in the design of a SuDS for impermeable surfaces.

  • Available in a range of loadings up to F900
  • Manufactured from high quality pre-cast concrete
  • Suitable for light and heavy traffic
  • Low capacity
  • Choice of metal grating

Price Range

  • £
  • £
  • £

Maximum Loading Classification


NBSPlus Codes

Q10 180

Drainage Capacity


Carbon Footprint

Available on Request

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