This guide was designed to assist superintendents and school business officials in evaluating and allocating custodial workloads. Part I illustrates a method for equalizing custodial workloads, using a representative employee's performance as a model for measuring the workloads of other employees. The administrator is shown how to select this representative employee, gather the evaluative data, summarize the data, and interpret the results. Part II presents a method (the factoring formula) for determining the proper size of the custodial staff. Factors to be taken into account include the number of rooms, the number of pupils, the floor area, the size of the school grounds, and available equipment. Examples are employed which were taken from an actual study conducted in suburban Minneapolis. (HW)