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The Keystone BOX/K-100 1800mm Steel Lintel is a strong and reliable support solution for 100mm solid walls, designed to span wider masonry openings such as large windows or doorways. Suitable for both internal and external applications, this standard-duty lintel is ideal for use in residential and light commercial buildings.
Made from galvanized steel, it offers excellent resistance to corrosion and features perforations along the length to act as a plaster key, ensuring a secure finish for internal plaster or external render. The BOX/K-100 lintel combines strength with ease of installation and is trusted by builders for its consistent performance.