Keystone S/K-90 Cavity Lintel

Keystone S/K-90 Cavity Lintel

The Keystone S/K-90 Cavity Lintel is a standard load lintel designed to support structural openings with cavity widths between 90–105 mm. It provides reliable support across door and window openings and is suitable for a wide range of domestic and light commercial building projects. The lintel is designed so that blockwork can be built tight against its inner face, ensuring proper alignment and load transfer. Before installing floor units, a mortar bed should be placed on top of the blockwork to ensure even distribution of load. For best results and to maintain construction speed, it is recommended that lintels are propped during installation. The product descriptions provided serve as a general guide, and further technical assistance is available on request.

Available Lengths

• 900 mm
• 1200 mm
• 1500 mm
• 1800 mm
• 2400 mm
• 3000 mm

FAQs

What cavity width is the S/K-90 lintel designed for?

It is suitable for cavity widths between 90 and 105 mm, making it ideal for standard cavity wall construction.

Do lintels need to be propped during installation?

Yes. Propping is recommended to maintain stability and ensure faster, safer construction until the masonry has fully cured.

Why is a mortar bed required on top of the blockwork?

The mortar bed helps evenly distribute the load from floor units or additional masonry, preventing point loading and ensuring structural integrity.

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