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Concrete Lintels

Concrete lintels provide essential structural support above door and window openings, distributing the load from the masonry above to prevent cracking and movement. These precast components are a staple on Irish building sites, offering reliable performance in both new construction and renovation projects where solid, long-lasting support is required.

Our Precast Concrete Lintel Selection

McMahons stocks a comprehensive range of prestressed and reinforced options to suit various wall types and load requirements.

  • Concrete lintels 4x3 inch - precast lintels manufactured using lightweight aggregate concrete for supporting openings above windows and doorways. The lightweight aggregate construction makes them easier to handle on site compared to standard concrete lintels, and also provides greater resistance to heat transmittance, reducing thermal bridging at the lintel position. Reversible and easy to install. Available in lengths from 4ft to 9ft.
  • Concrete lintels 6x3 inch - a wider-profile precast aggregate concrete lintel for wider openings or applications where a deeper bearing is required. Manufactured to support door and window openings in both blockwork and brickwork construction. Lightweight, reversible, and easy to install. Available in lengths from 4ft to 8ft.

Browse our complete Lintels & Cills collection to find matching components for your project, including Concrete Cills for a coordinated finish.

Selecting the right precast support depends on several factors: the span width, anticipated load, wall construction type, and whether the component will be visible or rendered over. For cavity walls, ensure you choose a lintel width that bridges both leaves correctly, and always check manufacturer load tables against your structural requirements.

Why Choose McMahons for Your Structural Components?

With nearly two centuries of experience supplying Irish builders, our team understands the practical demands of construction projects. Our knowledgeable staff can help you calculate the correct specifications for your openings, ensuring you get the right product first time. Ready to order? View our delivery options for convenient site delivery across Ireland.