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Openings in cavity walls. Cavity walls consist of 2 skins of masonry separated by a gap (cavity). Cavity walls are common in houses built from the 1920's onwards.

Typically when making an opening in a cavity wall two steel beams are used, with separate steel beams supporting the inner and outer leaves. Quite often new openings are created in a wall when a new extension to the house is added.

For types 3 to 18 there is a variety of different types, if you're not sure which type is relevant to your project it might be worth speaking to your builder or architect or a knowledgeable friend. Also we can help, so please feel free to contact us.