Cutting reinforcement bars from only one length of 12 meter to suit construction projectrnrequirements result in cutting losses. Major waste is encountered in huge projects such asrnhousing apartments and high rise building projects during cutting of steel from standard lengths.rnThe actual amount of wastage generated on-site exceeds the initial estimated amount which leadsrnto the additional project cost. The loss of rebar can be minimized with proper planning andrnoptimizing the procedure of bar cutting and fixing. To achieve this goal, the accurate andrndetailed information of rebar is extracted, followed by both a rapid and efficient bar combination.rnTherefore, reducing steel waste (or minimizing cutting losses) has long been the focus ofrnacademic research in one-dimensional stock design and cutting problems.rnThis thesis determines the amount of rebar wastage generated on-site by classifying potentialrnsources of wastage and waste minimization practice applied on-site. This will be applied for thernArmy foundation apartment (Kality 1 and Kality 2) project with a total of 28 buildings. Methodsrnused for data collection and analysis are interview, content analysis method, participatoryrnobservation and case study. The optimum cutting pattern was assessed using structural designrnand optimization software such as MaxCut and GoNest 1D. Secondary sources of data wererncollected from previous studies done on the subject and various works of literature. As the mainrnsource of data, direct site observation, and accurate measurement were done.rnThe findings of this research illustrate the direct sources of rebar wastage are cutting bar waste,rnun-optimized working procedure, rework, design change, and corrosion. Also, indirect sources ofrnwaste are ahead of time material delivery, management waste, and late deliveries. Rebar wasternminimization implemented on-site are design modification, on-time deliveries, reusing cutoffs,rnestablishing a kaizen team, and return leftover rebar to the client. Challenges in the site tornenforce material management schemes are undefined scope on material waste, lack ofrncommunication between parties involved, lack of details in drawings, and improper storage ofrnmaterials.The recommendations given based on the obtained results are proper and detailed planning ofrnmaterial usage before beginning project work to reduce the amount of wastage. Planning alsornshould include a map of storage, transportation, and cutting areas within the site. Thernconstruction industry is a fast-growing field therefore professionals involved in the industry mustrnupdate themselves to current practices to avoid misusage of materials and reduce waste.rnDesigners and consultants should develop a design that includes the most optimal dimensionsrnand supervision is mandatory for waste minimization.