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We are a proud registered member of the CPD Certification Service and have created an accredited CPD - Enhanced subbase attenuation for source control sustainable drainage. This is a free educational presentation that can be held in person, online or a combination thereof.

The Formavoid units provide huge strength by load spread through aggregate infill. Formavoid units have been independently tested by a UKAS accredited organisation. Vertical loads in excess of 120 tons/m² were achieved during a standard plate bearing test with no surfacing (plate test on top of subbase stone).

Previous installations have demonstrated that when installed on a 5% CBR formation, a Formavoid subbase with 150mm MOT Type 3 cover can achieve in excess of 30% CBR on top of the subbase. Suitable for use beneath car parks, roadways, bus routes and service yards.

You can purchase Formavoid and its components direct from FORMA, or via merchants. Alternatively we have supply & install contractors that can be recommended upon request.

FORMA is based in the UK and has international partners.

We have distribution partners for civils in Europe & North America.

We have proudly partnered with SIS Pitches for global implementation of Formavoid in sports.

Yes - our engineers are ready to assist with your drainage scheme. We regularly work with engineers from concept stage right through to construction details.

We also have a library of CAD details available and provide tools/training on how to design using Formavoid.

Formavoid subbase systems do not require any special/additional maintenance to traditional systems.

When used as part of a permeable pavement, the permeable surface should be maintained as normal. When installed as part of an impermeable system with Formachannels, the channels require 3 monthly inspections and annual cleaning.

All systems are designed to prevent silt entering the subbase. Silts are trapped in maintainable assets.