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How to select a lintel

Make sure you check out our brand new “how to” video, all about selecting the right lintels for your project.

When selecting a lintel, there are three factors that should be considered to ensure the correct specification: the type of wall construction, the dimensions of the structural opening and the total load on the lintel.

Firstly, the type of wall construction will affect the size and shape of the lintel required. For example, there are a number of lintels suitable for external walls and internal walls. Secondly, the dimensions of the structural opening should be calculated – lintels should be installed with 150mm bearings on each end of the lintel to ensure optimum performance and stability. Finally, the load weight should be taken into consideration to ensure that the lintel can support the required load weight.

Make sure you keep an eye out on Catnic’s social media channels and like, share or re-tweet our new lintel selection video!

 How to install a cavity wall lintel

Once you have chosen the correct lintel for your project, it is key that the lintel be installed properly – if it is not, it could lead to serious issues for the building. Our new video – which is now live on the Catnic YouTube page – explains how to install cavity wall lintels. We will be sharing the video across all Catnic social media channels over the coming weeks – make sure you like, share or re-tweet it.

Prior to installation, make sure that the product is damage free – if the lintel is damaged in any way, it may not perform as required.

For stability, it is key that lintels are level (both across the length of the opening and the width) and fully bedded onto the mortar. It is vital that masonry overhang does not exceed 25mm and the lintel front does not project forward of the window or door drip. Make sure that the masonry is fully cured before any load is applied to the lintel.