Abstract: A module for a modular furniture assembly includes a front frame rail, a rear frame rail, a first side rail, a support system, and a support bridge. The first side rail extends between the front frame rail and the rear frame rail. The first side rail defines a saddle that recesses below the front end portion and the rear end portion. The support system is disposed between the front frame rail, the rear frame rail, and the first side rail of the module. The support system is configured to support a user on the module. The support bridge is attached to the support system and is configured to attached to a support system of an adjacent module to functionally connect the support system of the module to the support system of the adjacent module such that forces are transferred therebetween.