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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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Concrete blocks: medium density or aerated type?
I'm currently bricking up two doorways in a 4" party wall between two
terraced houses, as part of a project to reinstate the original dwellings. I did the first one using medium density blocks, which I lugged back from Wickes myself, nearly stuffing both my back and the car suspension in the process... a joiner who later surveyed my handiwork said I could/should have used the much lighter aerated type instead. Is that right? If so I could at least use those for the second doorway! When we had an extension built a few years ago, with a cavity wall, I remember the builder used heavy blocks for the outer wall and much lighter ones for the inner - I assumed I'd need the heavier ones for the doorway. I've just noticed in the latest Wickes catalogue (page 36) both types of block are described as "3.5N" - would that be their load rating? Thanks David |
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