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Ratnix t1_je2o02f wrote

Reply to comment by wpmason in ELI5: How is a high level of precision maintained during the construction of a building to make sure its built square, level all around? by phenols

I briefly worked at a place that made things like pre-built ceiling trusses. The tolerance for each board we cut to be assembled into the truss was 1/4inch. So if each board was 1/4in short, you'd be looking at a 1/2in gap at that particular joint.

So yeah, It's not necessarily going to be square when you have tolerances like that.

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