Studio Class Capacity Calculator

This calculator lays out a grid of mat "spots" across your floor plan and counts how many fit. Mats per Row comes from dividing your Room Width (minus the Walkway Width) by each spot's width (Mat Width plus Spacing Between Mats), and Number of Rows comes from dividing Room Length (minus a rough allowance for the Instructor Area) by each spot's length (Mat Length plus Spacing), with both divisions rounded down to a whole number of spots -- a reformer or mat that doesn't quite fit isn't counted as a partial spot. Room Length and Room Width enter that grid symmetrically -- each feeds one of the two floor()-rounded divisions -- so neither one reliably moves Maximum Capacity more than the other; which one matters more at a given moment depends entirely on which dimension is closer to crossing a whole-spot boundary. At the default room, nudging Room Length by a single foot (39 to 41 ft) leaves Maximum Capacity unchanged at 24, while the same single-foot nudge on Room Width (29 to 31 ft) shifts it from 24 to 28 -- not because Width matters more in general, but because Width happened to sit right at a rounding boundary and Length didn't.

Mat Width and Spacing Between Mats also move it, working against capacity (a wider mat or more spacing per side means fewer spots per row) while Room Width and Room Length work for it. Comfortable Capacity is simply 80% of Maximum Capacity, a conventional buffer for aisle movement and instructor access rather than a separately derived figure. This model assumes a uniform rectangular grid; it doesn't account for support columns, irregular room shapes, or mirrors and equipment that eat into usable floor space in a real studio.