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Centre-to-centre distance
From Wikipedia, the free encyclopedia
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Centre-to-centre distance (c.t.c. distance or ctc distance) is a concept for distances, also called on-center spacing (o.c. spacing or oc spacing), heart distance, and pitch.
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| An editor has determined that sufficient sources exist to establish the subject's notability. (July 2025) |
It is the distance between the centre (the heart) of a column and the centre (the heart) of another column. By expressing a distance in c.t.c., one can measure distances between columns with different diameters without confusion. This concept applies to other architectural features that may have variable diameters/widths and spacings, such as pillars or ceiling beams and baffles.
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