The main objective of this research is to increase productivity and operational efficiency in a medium-sized company in northeastern Mexico dedicated to the design, manufacture, and distribution of office furniture. The drawer assembly process was identified as a critical point due to its direct impact on production capacity. The methodology employed was based on an empirical-analytical approach, combining direct observation on the plant floor with classic industrial engineering tools. On-site visits were conducted to document the process flow and validate the information with operational staff. The analysis included operation, flow, and route diagrams, 5W + 2H, the 5 Whys technique, the 9's methodology, time and motion studies, as well as the application of the MOST (Maynard Operation Sequence Technique). Three key areas of opportunity were identified: work area design, imbalance in work-in-process inventory, and lack of a suitable clamping device for assembly. The proposals focused on redesigning the work area to optimize material flow and allow two operators to work simultaneously. The inventory balancing strategy reduced overproduction and inefficient use of space. The design of an ergonomic clamping device allowed for standardization of the process, increased safety, and improved operational precision. The results estimate a 34.75% reduction in assembly time per drawer, decreasing from 80 to 52.2 seconds based on MOST-derived predetermined time analysis, which projects an increase in production capacity from 315 to 483 drawers/day under single-shift continuous production. The improvement proposals demonstrated high technical feasibility for improving productivity in SMEs. Post-implementation measurement is recommended to validate these projections.