Fireplace Lintels

Fireplace lintels are designed to support masonry above fireplace openings, including traditional hearths, inglenooks, and chimney breasts. Typically shorter in span than door or window lintels, they are well suited to concrete lintels, which offer a simple, cost-effective solution for most domestic applications.

Our range of fireplace lintels focuses on high-quality precast concrete options from Naylor, suitable for supporting brick, block, or stone above standard fireplace openings.

What Type of Lintel Is Used for a Fireplace?

In most cases, a concrete lintel is used above a fireplace opening. Concrete lintels provide reliable load-bearing support, are easy to install, and work well with both traditional and modern masonry finishes.

Steel lintels are rarely required unless the opening is unusually wide or supporting significant structural loads above.

If you're installing a lintel as part of a new fireplace or renovation, see our step-by-step guide to fitting a fireplace lintel for practical installation advice.

Typical Fireplace Lintel Sizes

Fireplace openings are generally smaller than door or window openings, which means lintels are typically shorter in length. Common sizes range from 600mm to 1200mm, depending on the width of the opening and required bearing at each end.

As with all lintels, adequate end bearing must be allowed for. The required bearing will depend on the span and application.

Concrete Lintels for Chimney Breasts and Inglenooks

In traditional construction, fireplace openings often sit within chimney breasts or inglenook structures. In these cases, the lintel must support masonry above while maintaining the structural integrity of the chimney.

Precast concrete lintels are commonly used here due to their durability and compatibility with masonry construction.

Do Fireplace Lintels Need to Be Fire Rated?

Concrete lintels are non-combustible and suitable for use in fireplace constructions. However, the surrounding design, including flues, liners, and clearances to combustible materials, must comply with relevant building regulations.

Choosing the Right Fireplace Lintel

When selecting a fireplace lintel, consider the width of the opening, the load from the masonry above, and the available bearing at each end. For most standard domestic fireplaces, a concrete lintel from the Naylor range will provide a straightforward and reliable solution.

If you are unsure which lintel is suitable for your project, contact our team for guidance.