Adjustable height rebar chair

An adjustable height rebar chair comprising:

• a tripod base consisting of a one-piece body of molded plastic that defines a vertical centerline and includes three feet separated from a central core by three legs, respectively, and the central core defining a threaded bore that is concentric with the vertical centerline, and the three leas extend downward from the central core toward the three feet;
• a rebar support column consisting of a one-piece body of molded plastic that includes a threaded rod, which is threadably received in the threaded bore, that terminates at a top end in an adjustment handle that defines a first concave rebar cradle and a second concave rebar cradle oriented perpendicular to the first concave rebar cradle;
• the rebar support column includes a vertical surface extending from the adjustment handle toward a bottom end of the threaded rod, and the vertical surface having numerical indicia that decrease in magnitude in a direction toward the adjustment handle;
• and
• wherein a number of the numerical indicia that is located next to a top of the central core corresponds to a distance along the vertical centerline from the three feet to at least one of the first concave rebar cradle and the second concave rebar cradle.