\Straight"-joint`\, a. (Arch.)
Having straight joints. Specifically:
(a) Applied to a floor the boards of which are so laid that
    the joints form a continued line transverse to the length
    of the boards themselves. --Brandle & C.
(b) In the United States, applied to planking or flooring put
    together without the tongue and groove, the pieces being
    laid edge to edge.