01480 215 000


Clayboard Beam

Solid strips made from recycled honeycomb

As our business has continued to grow, our specialist designers and manufacturers have continued to add to our range of void former products to ensure we’re able to provide our clients with the best possible level of choice and service.

Our innovative and reliable Clayboard Beam was designed to prevent the potential damage caused by ground movement and clay heave specifically around the beam area of a structure. Working in conjunction with Commercial Clayboard® and Residential Clayboard®, the Clayboard® Beam system creates a technically sound void.

Clayboard® Beam is made from a 100% recycled paper honeycomb core which is set between polypropylene facings. It is lightweight but is also strong and durable. Depending on the project’s requirements, Clayboard® Beam can be supplied in different widths and lengths. Our strips can be cut between 300mm and 800mm for 1m length panels, and between 800mm and 1m wide for 2.44m lengths. Designed to be flexible, Clayboard® Beam is also available in a range of thicknesses depending on the plasticity index of the soil.


All of our Clayboard® Beam boards can be supplied pre-wrapped to site so they are ready to be laid into the trench with water protection. Our VoidPak Pipe system can used in conjunction with Clayboard® Beam to effectively and easily introduce water to the Clayboard and start the honeycomb degeneration process.

Get In Touch

To speak with a member of our team about your Clayboard® Beam requirements, simply get in touch by calling us on 01480 215000 or by emailing clayboard@dufaylite.com.


I used Clayboard for the first time on a residential site last month. After ordering with Trisha from Travis Perkins, I was very impressed as the void former was on site in a few days. I have used other ground heave solutions before but none of them had delivered a true void, so I wanted to make sure I installed the product correctly. I had a quick look over the installation guidelines over a cuppa and I discovered the product was very easy to install. The product is lightweight and the fact it comes on weatherproofed pallets, makes my job easier when it arrives on site.

Groundworker, London

We like to deal with the market leading product manufacturers and the fact that we have been stocking and distributing Clayboard for as long as we have is testament to our relationship with Dufaylite. We always maintain healthy stocks of Clayboard, but there will be times when we need support from Dufaylite with a speedy replenishment. They are also quick to respond to quotation requests or questions about the product from our groundworks customers.

Tim Stubbs, Lemon Groundworks Solutions

I started to work with Clayboard on a number of sites about five years ago. I had been aware of other ground heave solutions previously, however after reading about the benefits of Clayboard on the website and getting to know Nigel at Clayboard, I realised Clayboard delivered numerous life cycle benefits to a project, plus it is technically a true void former.

I am often in contact with Nigel. He is reliable and extremely knowledgable of the product and the industry. Clayboard is competitively priced allowing the site to retain the cost benefits from less land excavation and ground prep, the level of service I receive from the team at Clayboard, the technical support of the product and the fast delivery times to site, help to ensure the site maintains its tight schedule.

Architect, Manchester

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Clayboard Beam


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