This study examines the ergonomic suitability of the classroom bench–desk system used at Rajshahi University of Engineering & Technology by comparing its dimensions with anthropometric data collected from 225 students. Eleven body measurements were analyzed to determine the 5th and 95th percentile limits, which were then used to derive acceptable ranges for key workstation dimensions through established ergonomic equations. A mismatch analysis revealed deficiencies in seat depth, backrest height, desk height, and seat width relative to students’ physical characteristics. Based on these findings, an improved workstation design was developed and modelled in a Computer Aided Design software, incorporating corrected dimensions while maintaining functional workspace requirements for engineering tasks. The redesigned workstation is expected to enhance posture, comfort, and overall usability for the student population.