Adjustable column for buildings

An adjustable load-bearing column assembly for supporting beams and the like including for on-site assemblage in superimposed operative engaging relation, an elongated H-shaped column of selectable length having a pair of parallel side wall segments joined together by a transverse web constituting a C-shaped tubular core and a pair of web segments extending from the core and joined to the midpoints of the side wall segments, a bearing plate having an opening concentric with and overlying the tubular core at the upper end of the column, a bolt having a selectively contoured head and a threaded shaft carrying a nut in adjustable threaded engagement therewith, the undersurface of the nut being in supportive relation with the bearing plate upper surface and the portion of the threaded shaft beneath the nut freely extending through the bearing plate opening and into the tubular core of the column, and a beam-embracively supporting bracket having an opening shaped and sized to non-rotatably receive and contain the bolt head to prevent rotation of the bolt when the nut is turned to effect vertical displacement thereof.