Void Formers

Void Former is a lightweight material in structural concrete in foundations, beam and slabs to fill structurally non-working areas and against clay heave. They are strong enough to support the weight of wet concrete as well as steel reinforcements. They come in either full form or in honeycombed form. 





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50mm Claylite - Protection Against Soil Movement

50mm Claylite - Protection Against Soil Movement

1200x2400 - 2.88m2  show quantity discountsDelivery Time: 2 - 3 days

£20.82 (£24.98 inc VAT)

£7.23/m2 (£8.68/m2 inc VAT)

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50mm Claylite is a low density expanded polystyrene compressible-fill material which can be used to reduce the pressure exerted on reinforced concrete ground beams or on the vertical face of concrete foundations, caused by the expansions of clay soils (clay heave) during the life of the st..

£20.82 (£24.98 inc VAT)

£7.23/m2 (£8.68/m2 inc VAT)

show quantity discounts
= m2
other thicknesses
50mm Claymaster

50mm Claymaster

2400x1200mm - 2.88m2  show quantity discountsDelivery Time: 2 - 3 days

£20.82 (£24.98 inc VAT)

£7.23/m2 (£8.68/m2 inc VAT)

show quantity discounts

50mm Claymaster is an EPS compressible-fill material which can be used to prevent potential problems in foundations due to moisture movement in soils which contain a large proportion of mineral particles below 0.002mm (‘clay heave’). The material can be used as permanent shuttering for cast in-situ ..

£20.82 (£24.98 inc VAT)

£7.23/m2 (£8.68/m2 inc VAT)

show quantity discounts
= m2
other thicknesses
60mm Dufaylite Commercial Clayboard Void Former (pack of 33)

60mm Dufaylite Commercial Clayboard Void Former (pack of 33)

1000x2440mm - 80.52m2  show quantity discountsDelivery Time: 3 - 7 days

£1,512.37 (£1,814.84 inc VAT)

£18.78/m2 (£22.54/m2 inc VAT)

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60mm Dufaylite Commercial Clayboard Void Former is a lightweight board available in four different thicknesses, and especially applicable to large scale, commercial projects. It is made from extremely environmentally friendly components, lowering the carbon footprint of the building, but also provid..

£1,512.37 (£1,814.84 inc VAT)

£18.78/m2 (£22.54/m2 inc VAT)

show quantity discounts
= m2
other thicknesses
60mm Dufaylite Residential Clayboard Void Former (pack of 33)

60mm Dufaylite Residential Clayboard Void Former (pack of 33)

1000x2440mm - 80.52m2  show quantity discountsDelivery Time: 3 - 7 days

£1,289.19 (£1,547.03 inc VAT)

£16.01/m2 (£19.21/m2 inc VAT)

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60mm Dufaylite Residential Clayboard Void Former is a specially designed board consisting of a lightweight, eco-friendly and biodegradable core covered with polypropylene facings. The product is designed to prevent the common problem of expansion and shrinkage of clay soil when it is ..

£1,289.19 (£1,547.03 inc VAT)

£16.01/m2 (£19.21/m2 inc VAT)

show quantity discounts
= m2
other thicknesses
Filcor - Expanded Polystyrene (EPS) Structural Fill Material

Filcor - Expanded Polystyrene (EPS) Structural Fill Material

Filcor EPS  Delivery Time: 1 - 2 days

Filcor EPS is an Expanded Polystyrene lightweight structural fill alternative to more traditional fill materials or as a lightweight void former in structural concrete. The standard (and  the maximum) sheet or block size is 2400mm long x 1200mm wide x required thickness. The thicknesses fr..

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