The UK construction sector is being encouraged to increase its use of homegrown timber, as industry experts highlight the benefits of locally sourced materials over imports. Despite the availability of sustainable domestic options, nearly 80% of timber used in the United Kingdom continues to be imported. This reliance is now being questioned across the supply chain. …A key issue raised within the sector relates to timber grading. Architects and engineers frequently specify higher grades such as GL28 or C24 without fully assessing project requirements. This trend has developed due to historical dependence on imported Scandinavian timber, where C24 is the standard grade. In contrast, the most common grade produced in the UK is closer to C16. This mismatch has led to inefficiencies. British timber is often overlooked. Specifications are sometimes made without full evaluation. The ‘Trust UK C16’ campaign is aiming to address this imbalance.