Fillaboard Strip is a high quality performance expansion joint for concrete applications. This is manufactured from specially formulated impregnated fibreboard, with a minimum 10% bitumen content. It has been specifically engineered to provide the optimum combination of durability and resilience. Tested to BS, DOT, & BAA specifications, this is a low cost permanent solution. Supplied in sheets of 2440mm (length) x 1220mm (wide) and 12mm (thickness).