Pictured here is one of my post popular log lamps with a 15" (bottom measurement) rawhide shade.  
 
The dimensions are as follows: The log itself is 12" tall and is 4" - 5" in diameter. The base is 7" wide x 6" deep x 1 1/2" high. The height of the lamp from the bottom of the base to the top of the post (not including the lamp hardware) is 14”. The total height of the lamp including the shade is 21 ½”.
 
For those of you who prefer a simple log lamp, this is perfect for your cabin in the woods or that special rustic setting in your traditional home.