Enclose Gable End Return

What happens here

For the final part of the eave box construction, an angled wooden board is installed to enclose the gable end return. This board is precisely cut to fit snugly into the triangular gap that remains. It connects the outer rake fascia board to the main roof's fascia or frieze board, completely enclosing the eave and providing a finished, aesthetic appearance to the structure. The board is secured with a nail gun.

Goal: Install the final angled board to fully enclose the eave soffit box.