This document provides guidance on effective resource capacity planning. It defines resource capacity planning as comparing the supply of available resources to the demands placed on those resources. The benefits of proper resource capacity planning include cost savings, improved project throughput and resource morale. The process involves calculating resource supply and demand, identifying variances, and solving issues through actions like hiring or deferring projects. It should be incorporated into regular portfolio management and prioritize allocating resources to higher value work. Spreadsheets are commonly but problematically used for this task.