Bible Encyclopedias
Purlin
1911 Encyclopedia Britannica
a term in architecture for the longitudinal timbers of a roof, which are carried by the principal rafters and the end walls and support the common rafters.
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Bibliography Information
Chisholm, Hugh, General Editor. Entry for 'Purlin'. 1911 Encyclopedia Britanica. https://www.studylight.org/​encyclopedias/​eng/​bri/​p/purlin.html. 1910.