View basket “20mm Ballast Half Bulk Bag” has been added to your basket. £0.96 Class B Engineering Brick quantity Add to basket Categories: Bricks & Blocks, Building Materials Related products 20mm Stone Bulk Bag £48.00 Add to basket 4m X 25m DPM, 300mu £53.40 Add to basket 300mm X 30m DPC £12.60 Add to basket 20mm Stone Half Bulk Bag £30.00 Add to basket