This is where the averages can be misleading. The number of modules a particular manufacturer produces each year depends on a few factors such as the type of project the company is building, the level of customization involved in the project, and the scope of the manufacturer’s contract (i.e., whether the customer wanted certain work to be completed on-site). Based on overall data obtained from 76 manufacturers in the U.S. and Canada, the average square footage produced in 2020 was 202,496.