Red Solid Class B Engineering Brick 65mm Pack of 400 from Buildingmaterials.co.uk is available at a great low price with fast nationwide delivery. Engineering bricks are used for their physical characteristics as a pose to their appearance. It is a solid brick that combines both low water absorption and high strength. They have high compressive strength and low water absorption and are classified only by these properties. Designed in a smooth red contemporary finish and is a vertically perforated extruded product. It features a high compressive of 75N/mm2 for use below DPC with a low rate of water absorption making them suitable to use above or below ground. PLEASE NOTE: The image is for representative purposes only, if unsure please order a sample Due to the Covid-19 pandemic, brick manufacturers have seen a surge in demand which has led to stock shortages and extended lead times. The price set against the product is based on them being in stock and delivered out of selected depots. We will always try to make sure that our customers' orders are fulfilled, but in the event we cannot supply the bricks within our selected network we will offer an alternative solution where possible.