The purpose of this paper is to analyze the design of the stoa of Zeus in Athens. Through the analysis of the dimensions and their proportions of the building, the following conclusion was given. 1) As initial dimension and proportion, the width of the stoa was given as 150 ft., and the width of the wings as one-fourth of whole length of the stoa. 2) The axial intercolumniation of the wings was the basis for the proportional relationships of the stoa. 3) The small difference between the width of the wings and the depth of the stoa occurred from angle contractions.
