Abstract: A set of modular classroom desks configured for outdoor use is presently described. Each classroom desk includes a bench seat; a table unit having a top surface; and first and second legs, each of which is coupled to both the bench seat and the table unit. The classroom desks of the set are configured to be releasably attached together in either a side-by-side orientation or a face-to-face orientation. In the side-by-side orientation, the top surfaces of the classroom desks form a planar tabletop surface, and the bench seats of the classroom desks form a planar seating surface. In the face-to-face orientation, the top surfaces of the classroom desks form a planar tabletop surface. In this manner, a number of classroom desks may be attached together, for instance to form a picnic table.