The Wienerberger Terca Class B Engineering Red mainly serves constructional needs requiring heavy duty masonry and low water porosity. The dense and strong semi-vitreous body allows the brick to withstand severe exposure to various weather conditions. The product is manufactured from clay using a wire-cut process which makes this brick stronger and less porous. Wienerberger is one of the world's largest producers of bricks, and number one on the clay roof tile market in Europe as well as concrete pavers in Central and Eastern Europe. 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.