£0.96 Class B Engineering Brick quantity — OR — Add to basket Categories: Bricks & Blocks, Building Materials Related products 100mm Thermalite Shield / Celcon Blocks £2.85 Add to basket Line Marker Spray – 750ml £7.99 Select options Tarpaulin – 2m X 3m £4.44 Add to basket 20mm Ballast Bulk Bag £42.00 Add to basket