View basket “20mm Ballast Half Bulk Bag” has been added to your basket. £2.85 100mm Thermalite Shield / Celcon Blocks quantity Add to basket Categories: Bricks & Blocks, Building Materials Description Description Face Size 440mm x 215mm Related products 4m X 25m DPM, 300mu £53.40 Add to basket Line Marker Spray – 750ml £7.99 Select options Bond-It Liquid Mortar Plasticiser £5.90 Read more 20mm Stone Mini Bag £3.50 Read more