Housing for a heating, ventilation, and/or air conditioning (HVAC) unit

A method of installing a housing of a heating, ventilation, and/or air conditioning (HVAC) unit, the method comprising:

• positioning the housing adjacent to a component of the HVAC unit, wherein the housing comprises a plurality of integrated panels, and wherein a first panel of the plurality of integrated panels comprises an integrated attachment flange that is integrated into an edge of the first panel of the plurality of integrated panels and is initially disposed within an internal volume of the housing in a collapsed configuration, and wherein the integrated attachment flange is parallel to the first panel of the plurality of integrated panels in the collapsed configuration;
• and
• folding a foldable portion of the integrated attachment flange to dispose the integrated attachment flange in a deployed configuration, wherein, in the deployed configuration, at least part of a moveable portion of the integrated attachment flange extends beyond the edge of the first panel of the plurality of integrated panels to engage the component of the HVAC unit.