Abstract: A new log siding for installing on a structure to simulate an appearance of a log cabin. The inventive device includes a plurality of longitudinal sections adapted for coupling together in a side by side orientation and an end to end orientation on a wall of a structure. Each of the longitudinal sections has an arcuate central portion. The arcuate central portion has an upper edge extending upwardly therefrom. The upper edge has a downturned end portion forming a receiving slot. The arcuate central portion has a lower edge extending downwardly therefrom. The lower edge has an upturned portion on an intermediate portion thereof. The upturned portion has a slot formed therein. The lower edge has a plurality of apertures therethrough disposed below the upturned portion. The arcuate central portion has indicia thereon resembling a log. A plurality of corner posts are adapted for coupling with the longitudinal sections at corners of the structure.