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Attic conversion


Ian

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Hi Ian I cannot give you a definative answer but I can tell you that in many older buildings the "Attics" were grenieres and 'designed' to take a significant dead load in terms of grain. My own conversion the chamber joists are about 7 x 7 oak or I guess thats about 350 x 350 in new money? I operated on the principle that a bed and a wardrobe likely weigh less than the thresher and sacks of grain that used to live there.

Depends on your structure and its intended use I guess. You will likely find that if you put some pics up then some helpful soul will help out.

Welcome aboard!

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hi Ian                                                                                                                 

          Go to diydoctor.org.uk and check the joist span tables and compare with your exsisting joists.

                                                              bob

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[quote user="teapot"][quote user="BIG MAC"]

about 7 x 7 oak or I guess thats about 350 x 350 in new money?

[/quote]

Have you been lying the the OH again Big Mac? [:D]

7 x 25.4 =177 in new money or was it the exchange rate [:D]

[/quote]

 

That may have made more sense if the question had been ..Have you been lying to the OH again Big Mac? Kind of assumes I am a liar...but letting that go ...I would say it was more of a conservative estimate!

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If your attic is boarded over, then the likelihood is that the joists are load-bearing. If the joists were only ever meant to hold up a ceiling, then they'll be something like 50 x 75, or 65 x 85. In which case you will have to replace them with something a lot more butch.

Pull up a floorboard and measure the joists.

p

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