Hanging frame assembly

An article for hanging on a support surface, the article comprising:

• a substrate having a first end and a second end;
• a pair of rails, each rail including a recessed channel that extends in a longitudinal direction;
• a pair of splines, each spline including a raised ridge that extends in a longitudinal direction, the raised ridge being configured for insertion into the recessed channel;
• a first pair of end caps, each end cap of the first pair of end caps having an end walls and side walls that define a hollow interior, wherein each end cap of the first pair of end caps further includes slots that are formed in two of the side walls that are opposite one another;
• a second pair of end cap, each end cap of the second pair of end caps having an end walls and side walls that define a hollow interior;
• and
• an elongated hanging element that has enlarged portions at two opposite ends thereof, the elongated hanging element passing through the slots of the first pair of end caps with the enlarged portions being located external to the first pair of end caps;
• wherein in an assembled state, one rail and one spline are disposed adjacent one another such that the raised ridge is at least partially inserted into the recessed channel and the substrate is captured within the recessed channel and the first pair of end caps are disposed over opposite ends of the one rail and one spline to join and hold the one rail and one spline against one another with the substrate captured therebetween;
• wherein in the assembled rate, the other rail and the other spline are disposed adjacent one another such that the raised ridge is at least partially inserted into the recessed channel and the substrate is captured within the recessed channel and the second pair of end caps are disposed over opposite ends of the one rail and one spline to join and hold the one rail and one spline against one another with the substrate captured therebetween.