Rafter: closely spaced framing members supporting a roof.
Floor joist or ceiling joist: closely spaced parallel beams supporting a
floor or ceiling.
Girder: a large beam, generally one into which other beams frame.
Beam: structural member which primarily resists loads in bending, generally
a horizontal member.
(This is a general term which includes the above specific member types.)
(Adapted from Illustrated Encyclopedic Dictionary of Building and
Construction Terms, Prentice Hall, 1976.)
> -----Original Message-----
> From: Juan José Treff De la Mora [mailto:jjtreff(--nospam--at)hotmail.com]
> Sent: Wednesday, February 21, 2001 10:54 AM
> To: seaint(--nospam--at)seaint.org
> Subject: DIFFERENCE?
> Can anyone explain me the difference between a beam, a rafter
> and a girder?
> Juan Jose
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