ABSTRACT
 
 This research work was conducted to find out the impact of organizational structure on managerial effectiveness of a named organization (ENTRACO).
 This research work on the chosen topic was deemed necessary by the researcher in view of the conclusion reach by several schools of though on management that the way an organization is operationally structured could make or many organization in the achievement of its objectives.
 The research in the course of the work, administered some structured questionnaire to critical office of the establishment, aimed at eliciting useful information. This was complemented by view of related literature on the subject including study of the organization structure in the establishment.
 Arising from the above exercise, the researcher was able to discover among others.
 1.There is weak organizational structure in the establishment studied because the organizational structure in place are not well spelt out as many functional frameworks were not represented on the structure.
 2.There was also apparent lack of adequate knowledge and understanding by most staff of the establishments on the structural arrangements and this breeds conflicts in communication channels.
 3.That the lack understanding of the organizations structure arrangement contributed to lack of policy and organizational manuals.
 In the view of the fact that the above lapses were found to be seriously militating the achievement of the organizational goals, it was then recommended, thus;
 1.That the organizational structure currently in place in the establishment  should be reviewed and redesigned to include all functional frameworks hitherto not represented.
 2.Then the above (1) should be backed up by policy and organizational manual.
 3.Proper induction conducted for employers of the establishment on the need for adherence to the organizational structure and reportorial relative ties.
  
 TABLE OF CONTENT
 Title page
 Approval page
 Dedication
 Acknowledgment
 Abstract
 Table of content
 
 CHAPTER ONE
 INTRODUCTION
 1.1 Background of the study
 1.1 Statement of the problems
 1.2 Purpose of the study
 1.3 Scope of the study
 1.4 Research hypothesis
 1.5 Significance of the study
 1.6 Limitation of the study
 1.7 Definition of terms
     Reference
 
 CHAPTER TWO
 REVIEW OF RELATED LITERATURE 
 2.1 Early works relating to organizational structure and contemporary writings on organizational structure.
 2.2 Formal organization
 2.3 Informal organization
 2.4 The general principles of management
 2.5 Review of contemporary writing on organizational structure.
 2.6 Purpose of organizational structure/control
 2.7 The impact of organization structure
     References
 
 CHAPTER THREE
 RESEARCH DESIGN AND METHODOLOGY
 3.1 Research design
 3.2 Area of the study
 3.3 Population of the study
 3.4 Sample and sampling procedure/technique
 3.5 Instrument for data collection
 3.6 Validation of the instrument
 3.7 Reliability of the instrument
 3.8 Method of data collection
 3.9 Method of data analysis
     Reference
 
 CHAPTER FOUR
 PRESENTATION AND ANALYSIS OF DATA
 INTRODUCTION
 4.1 Presentation analysis of data
 4.2 Hypothesis testing
 4.3 Summary of result
     Reference
 
 CHAPTER FIVE
 DECISION, RECOMMENDATION AND CONCLUSION
 5.1 Discussion of results/findings
 5.2 Conclusion
 5.3 Implication of the research findings
 5.4 Recommendation
 5.5 Suggestions for further research
     References
     Bibliography
     Appendices.