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Planning for a construction project is a formidable task which involves a huge investment with multiple stakeholders such as clients, consultants, and contractors. A tender is a submission of a technical, administrative, and contractual material made by a potential contractor in response to an invitation to tender by the project client. Established contractors normally realise the importance of doing initial research before committing themselves to enter the tender. Normally, tender pre-qualification is a strict process. A low-quality tender submitted due to problems such as insufficient time and incomplete tender documents normally lead to tender rejection by the client. Thus, this research aimed to provide a strategy to help the contractors in deciding whether they should or should not submit a tender at the initial tendering decision phase. The literature review was focused on the key factors identified in influencing the decision-making process and in the final part, the initial conceptual model was established

The construction industry is generally a high producer of waste. The implementation of waste minimization strategies on construction sites can potentially make a significant contribution to the sustainability of construction industry. However, there are several pitfalls to waste control on construction sites. This study was a preliminary effort to identify relative importance of factors influencing waste minimization barriers and incentives on construction sites in Kuching, Sarawak. Questionnaires were distributed to 50 practitioners who worked for contractors engaged in various types of construction projects in Kuching, Malaysia. The list of contractors was obtained from the CIDB directory. Survey responses were analysed using the Statistical Package for Social Science (SPSS). From this study, useful information concerning barriers to waste minimization and incentives practices from the perspectives of local contractors in Kuching City was obtained. The results obtained also provided some insights for further work.