This insulated box lintel from Keystone Lintels is manufactured from galvanised steel and measures 3900mm in length, making it suitable for wide structural openings in masonry applications. The lintel incorporates insulation within its box profile, supporting cavity wall construction while providing additional thermal benefit.
Typically used by bricklayers and builders in both residential and commercial projects, it is designed for straightforward installation above windows, doors, and other openings. The box section provides consistent support for masonry loads, ensuring the safe distribution of structural weight across the opening.
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