Estimation involves forecasting the probable cost of a project with respect to quality, finance, and time requirements. There are two types of estimation: approximate/preliminary and detailed. Estimation serves several purposes such as determining budget, obtaining funds, making tenders, and controlling costs during project extensions. Partition is a structure that divides space into parts for privacy and optimal space utilization while reducing sound transmission. Common materials used in partitions include wooden battens, plywood, laminate, adhesive, fasteners, and nails. The construction process involves making and fixing the frame, installing ply, and finishing. An example approximate estimation for a partition wall includes calculating costs for materials and labor.