The Keystone steel box lintel provides structural support for masonry openings in both internal and external walls. Manufactured from galvanised steel, it is designed to accommodate wall widths between 100mm and 215mm, with a length of 2400mm and height of 150mm for use in wider spans.
Suitable for installation above windows, doors, and similar wall openings, this box lintel is used during construction to bear the weight of brickwork or blockwork above. The perforated profile along its length acts as a plaster key, assisting in creating a secure, even finish on-site.
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