View basket “20mm Ballast Mini 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 Spear and Jackson 50m Braided Lines £3.99 Add to basket Line Marker Spray – 750ml £7.99 Select options 20mm Stone Half Bulk Bag £30.00 Add to basket Tarpaulin – 2m X 3m £4.44 Read more