January 24th, 2018

Purlin is a horizontal beam that provides intermediate support for rafters, boards or sheet roofing.  It runs the length of a roof, resting on principals.  This may be referred to in a CAD image.

Last Modified / Updated on: March 17, 2017 at 4:35 pm

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Random Glossary term

  • Keyboard Tray

    A unit that attaches to the underside of a computer desk or work surface that holds a keyboard.  The keyboard tray may be sliding, to tidy away at the end of working.

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