Abstract: The present invention relates to an outdoor courtesy bench and is specifically concerned with providing such a bench which is constructed of a lightweight easily handled material for visibly displaying a plurality of advertising panels, both on the front and back of the bench. Prior art devices have been constructed of heavy, high maintenance materials which in use are subject to the accumulation of debris and the like therebeneath and which are subject to the collection of rain water and the like on the seat portion thereof and have only been adaptable to display a single advertising panel on the frontside thereof. The present invention overcomes these deficiencies by providing an outdoor courtesy bench of three-piece modular construction of a lightweight material having a hollow base portion to which discreet weight members can be added for increased weight and stability of the bench after positioning at a selected bench site.