A profile strut includes an upper chord, a lower chord, two spaced-apart lateral walls which, together with the upper chord and the lower chord, define an interior, and a first profile end and a second profile end. A first end piece is disposed in the first profile end and a second end piece is disposed in the second profile end. A connecting web connects the first end piece to the second end piece. Each of the first end piece and the second end piece bears via end faces thereof against adjacent inner wall regions of the upper chord and the lower chord; respectively. An intermediate region, which is configured as a tunnel incorporated into the lower chord, is disposed between the first profile end and the second profile end.