Abstract: A chassis construction particularly useful for electronic equipment comprises a rectangular supporting panel, front and rear frame members of open rectangular configuration secured to the supporting panel, and a pair of side members. The front and rear frame members are formed with recesses, and the side members are formed with inwardly-extending tongues received in the recesses and secured to the front and rear frame members by fasteners passing through the tongues and recesses to thereby strengthen the chassis against torsion and bending forces.