An integrated sash unit including a first sash portion. The first sash portion a first body portion and a first receiving wall extending inwardly from the first body portion. The first receiving wall has a first inner wall surface and a first peripheral wall surface opposing the first inner wall surface. The first body portion defines a first receiving surface and a first coupling surface and a first body peripheral surface opposite the first receiving surface and the first coupling surface. The integrated sash unit also includes a second sash portion forming a second body portion and a second receiving wall extending inwardly from the second body portion. The second receiving wall has a second inner wall surface and a second peripheral wall surface opposing the second inner wall surface. The second body portion defines a second receiving surface and a second coupling surface and a second body peripheral surface. The first coupling surface of the first sash portion is coupled to the second coupling surface of the second sash portion. The integrated sash unit also includes a first glazing panel supported by and coupled to the first inner wall surface of the first sash portion without being coupled to the second sash portion and a second glazing panel supported by and coupled to the second inner wall surface of the second sash portion without being coupled to the first sash portion.