Recent content by Andytip

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    rsj and what size columns it needs to sit on

    Help please I am doing a single storey extension at the back of my house it's 3 metres out and 4.2 metres wide I plan on having a vaulted lean to roof and have been told that I need to put two brick columns and a rsj to support the roof how should I do the columns as don't want them to big...
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