The Catnic Internal Wall Box Lintel Standard Duty 3000mm BSD100 is a high-quality, robust and reliable structural element, vital for the construction of internal walls. Manufactured by Catnic, a trusted name in the building industry, this lintel is designed to bear heavy loads with ease. The 3000mm length makes it suitable for a wide range of projects and its standard duty rating further assures its suitability for most domestic and commercial applications. With this lintel, you are guaranteed solid support for your construction project.