Box lintels can be used for internal or external openings with a variation of wall thicknesses. The Keystone box lintel has perforations along its length acting as a plaster key. The Keystone box lintel is designed to carry the full load of wet masonry as soon as it is installed.

Brand Name	Keystone
Colour	string
Material	Steel
Manufacturer Model No	string
Wear Type	string
Type	Box Lintel
Certifications Met	string
Country of Origin	string
Protects From	string
Waterproof	string
Number of Pockets	string
Sales Unit	EA
Weight	47.05Kg
Length	3600mm
Safe Working Load	Total UDL - 30 kN
Height	215mm