A post member includes a side surface, and a beam member includes a side surface and an underside edge surface. The beam member is attached to the post member using a multi-piece hanger including a first L-shaped bracket with a first mounting flange attached to the side surface of the post member, and a second L-shaped bracket with a second mounting flange attached to the side surface of the beam member. The first L-shaped bracket further includes a first interlocking flange supporting the underside edge surface of the beam member. The first interlocking flange includes an extending tab member. The second L-shaped bracket further includes a second interlocking flange positioned adjacent the first interlocking flange. At a bend of the second L-shaped bracket, at least one slot is provided which is sized and shaped to receive the extending tab member.