End plate structure for a fuel cell stack including a first plate and a second plate of lesser thickness and having a first region and second and third regions at transverse opposite ends of the first region, the second and third regions each having a first portion extending outwardly of the plane of the first region and a second portion extending toward the central portion of the first region, the first plate being supported on the second portions of the second and third regions to define a channel in which is disposed a resilient means.