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Steel Lintels have many inherit advantages over prestressed concrete lintels. They are much smaller, lighter and less prone to damage whilst on site, making handling much easier than with large concrete beams. Once construction has finished the lintel won't be visible, allowing for an appealing look with continuous brickwork. All steel lintels are produced to order, and can accommodate a large range of required dimensions.
We offer Catnic steel lintels in lengths 900mm, 1200mm, 1500mm, 1800mm, 2100mm, 2400mm, 2700mm, 3000mm and 3300mm.
Steel lintels can also be produced in various shapes as well as sizes. Many special lintels have been designed to create arch effects on door openings, however our suppliers also have the ability to design to your specifications. Let us know what you require using the enquiry form.
Installing Steel Lintels
Steel Lintels should be installed with a minimum end bearing of 150mm, bedded on mortar and levelled along its length and across its width.
The masonry above the lintel should be built in accordance with BS EN 1996-2:2006.
Raise the inner and outer leaves simultaneously to avoid excessive eccentricity of loading, with a maximum height difference of 225mm (Masonry should be laid on a mortar bed and all perpendicular joints should be filled.)
Allow the mortar to cure before applying floor or roof loads (Temporary propping beneath a steel lintel is practised to facilitate speed of construction).
The NHBC recommend a damp proof course (DPC) or cavity tray should be installed over all openings in external cavity walls.
When installing concrete floor units or other heavy components above a lintel, care should be taken to avoid shock loading and floor units should not be dragged into position. Masonry immediately above the lintel should be allowed to cure.
Point loads should not be applied directly onto lintel flanges. Steel Lintels should have a minimum of masonry 150mm high between the flange and the application level of any form of loading.
The external lintel flange must project beyond the window/door frame and it is recommended that a flexible sealing compound is used between the underside of the lintel flange and the frame.
When the underside of a lintel is exposed, its appearance can be enhanced by the addition of lintel soffit cladding.
Do not cut lintels to length or modify them in any way.
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Catnic has pioneered the steel lintel for more than four generations, their products are manufactured with a unique duplex corrosion protection system, an integral plaster key and built-in damp proof course with continuous insulation.
Keystone has a range of over 800 lintel types, having developed a comprehensive range to suit your construction type. Whether you have a 50mm cavity or 200mm cavity, a 140mm wide inner leaf or a 215mm wide outer leaf, Keystone has the lintel to suit.
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