This document analyzes the classification of soil types described in the Bangladesh National Building Code (BNBC) 2006 by performing response spectrum analysis of the Los Angeles 9-story SAC steel building model under different BNBC response spectra. The study develops three response spectra for Dhaka zone 2 soils - RS1 for soil type 1, RS2 for soil type 2, and RS3 for soil type 3. Response spectrum analysis finds that structural outputs for RS3 are 1.57-2.07 times greater than RS2 and RS1 respectively. Outputs for RS2 are 1.31 times greater than RS1, indicating more severe seismic loading with increasing soil type number.