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Models: BOX/K-75, BOX/K-100, BOX/K-150, BOX/K-200

Box lintels can be used for internal or external openings and with a variation of wall thicknesses. The Keystone box lintel has perforations along its length acting as a plaster key. 

Specifications

Dimensions
Sizes available for cavity widths from 50mm to 165mm and wall widths from 100mm-215mm
Material(s)
Steel / stainless steel as require
Special features
As an optional extra, Keystone box lintels can be insulated. The keystone box lintel is designed to carry the full load of wet masonry as soon as it is installed.
Suitability/use
Internal or external openings.
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