common joist


Also found in: Dictionary.

common joist

[¦käm·ən ¦jȯist]
(building construction)
An ordinary floor beam to which floor boards are attached.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

common joist, bridging joist

A joist on which floorboards are laid; neither supports nor is supported by another joist.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.